yoshitaka iwadare - Academia.edu (original) (raw)
Papers by yoshitaka iwadare
Medical Journal of Australia, 2013
No to hattatsu = Brain and development, 2004
We studied sympathetic skin response (SSR) to visual emotional stimuli in two children with atten... more We studied sympathetic skin response (SSR) to visual emotional stimuli in two children with attention deficit/hyperactivity disorder (AD/HD) and nine healthy controls, and correlated them with comorbid disorders. They were diagnosed as having conduct disorder at administration. Two years after interventions of medical care, counseling and education, they were improving in behavior, one with oppositional defiant disorder (ODD) and another without ODD at this study. SSR were evoked in the patient without ODD (a 10-year-old boy), but not in the patient with ODD (a 12-year-old boy). These findings indicate failure of a patient with both AD/HD and ODD to respond autonomically to social stimuli, and suggest association between emotional signal and empathy.
Asian Journal of Psychiatry, 2019
Background: The Great East Japan Earthquake (GEJE) and tsunami of March 11, 2011 left behind many... more Background: The Great East Japan Earthquake (GEJE) and tsunami of March 11, 2011 left behind many survivors, including children. This study aimed to assess changes in traumatic symptoms with time among kindergarteners who experienced GEJE as infants and to discuss the relationship between these symptoms and the disaster experience. Methods: The 15-item Post-Traumatic Stress Symptoms for Children (PTSSC-15) questionnaire were distributed to the parents of kindergarteners (children aged 4-5 years) at 8, 20, 30, and 42 months after GEJE. Questionnaires regarding environmental damage conditions affecting the children were distributed to teachers 8 months after the tsunami. Results: The number of kindergarteners was 262, 255, 236, and 202 at 8, 20, 30, and 42 months after the disaster. The PTSSC-15 total score was not different between kindergartners with and without environmental
Neuropsychiatrie de l'Enfance et de l'Adolescence, 2012
Tensor imaging (DTI). All had completed the DAWBA diagnostic computerized interview that allows f... more Tensor imaging (DTI). All had completed the DAWBA diagnostic computerized interview that allows for symptom assessment. In a first study, we included 42 adolescents with SBP and 168 controls. Voxelwise comparisons were performed for DTI parameters using TBSS and for grey matter volume using voxel-based morphometry (VBM). In a second study, we compared regional grey matter volume using VBM between 119 adolescents with subthreshold depression and 475 controls. Results.-Significant decreases in global and regional Fractional Anisotropy were observed in SBP subjects in various WM tracts that have been reported altered in bipolar disorder, and GM volume was significantly decreased in the anterior cingulate cortex. In participants with subthreshold depression, GM was significantly decreased in the ventromedial prefrontal cortex, in the anterior cingulate cortex, and in both caudate nuclei. Discussion.-Results suggest alterations of brain structure in healthy subjects with subthreshold affective symptoms that are similar to those reported in fullblown manic or depressive episodes, which might lead to preventive strategies. However, whether those alterations are developmental or predict pathology needs further investigation.
<p>SD, standard deviation; N, number of cases.</p><p>Characteristics of childre... more <p>SD, standard deviation; N, number of cases.</p><p>Characteristics of children affected by the 2011 Japan earthquake and tsunami.</p
Sleep and Biological Rhythms, 2014
ABSTRACT Changes in sleep patterns among children following traumatic experiences may be indicati... more ABSTRACT Changes in sleep patterns among children following traumatic experiences may be indicative of post-traumatic psychiatric disorders and contribute to disease persistence. We evaluated long-term changes in the sleep habits of 1919 junior high school students who experienced the 2011 Japan earthquake and tsunami, and examined the associations among sleep patterns, trauma symptoms, and specific traumatic events. The Post-Traumatic Stress Symptoms for Children-15 items self-completion questionnaire was distributed to the children, and a questionnaire regarding three specific traumatic events (home damage, bereavement, and evacuation) was distributed to their teachers. Compared to the same survey conducted 8 months after the disaster, a 20-month post-disaster survey revealed significantly shorter mean sleep duration and a delay in sleep phase (P &lt; 0.0001). On the 20-month survey, weekday sleep duration was shorter and sleep–wake pattern delayed in children who had experienced home damage compared to children with no such experience (P &lt; 0.01). Children who had experienced bereavement also reported a shorter mean sleep duration on the 20-month survey compared to children reporting no bereavement experience (P &lt; 0.05). Differences in sleep duration between weekdays and holidays at 20 months post-disaster suggested a sleep debt due to sleep disruption. There were no significant differences in Post-Traumatic Stress Symptoms for Children-15 items total scores between groups defined by the type of traumatic experience. Traumatic events (home damage, bereavement) associated with the 2011 Japan earthquake and tsunami have caused long-term sleep disruption in children from this region.
PloS one, 2015
The Questionnaire: Children with Difficulties (QCD) is a parent-assessed questionnaire designed t... more The Questionnaire: Children with Difficulties (QCD) is a parent-assessed questionnaire designed to evaluate child's difficulties in functioning during specific periods of the day. This study aimed to evaluate difficulties in daily functioning of children and adolescents with pervasive developmental disorder (PDD) using the QCD. Results were compared with those for a community sample. A case-control design was used. The cases comprised elementary school students (182 males, 51 females) and junior high school students (100 males, 39 females) with PDD, whereas a community sample of elementary school students (568 males, 579 females) and junior high school students (180 males, 183 females) was enrolled as controls. Their behavior was assessed using the QCD, the Tokyo Autistic Behavior Scale (TABS), the ADHD-rating scale (ADHD-RS), and the Oppositional Defiant Behavior Inventory (ODBI) for elementary and junior high school students, respectively. Effects of gender and diagnosis on th...
Journal of affective disorders, Jan 20, 2015
The parent-assessed children-with-difficulties questionnaire (Questionnaire-Children with Difficu... more The parent-assessed children-with-difficulties questionnaire (Questionnaire-Children with Difficulties; QCD) is designed to evaluate a child׳s difficulties in functioning during specific periods of the day. This study aimed to use the QCD to evaluate the difficulties in daily functioning experienced by children with depressive disorders. A case-control design was used. The cases comprised 90 junior high school students with depressive disorder, whereas a community sample of 363 junior high school students was enrolled as controls. Behaviors were assessed using the QCD, Depression Self-Rating Scale (DSRS), Tokyo Autistic Behavior Scale (TABS), attention deficit hyperactivity disorder-rating scale (ADHD-RS), and Oppositional Defiant Behavior Inventory (ODBI). We then analyzed the effects of sex and diagnosis on the QCD scores as well as the correlation coefficients between the QCD and the other questionnaires. We included 90 cases (33 boys, 57 girls) with depressive disorders and 363 ...
PloS one, 2014
The aim of this study was to evaluate the frontopolar hemodynamic response and depressive mood in... more The aim of this study was to evaluate the frontopolar hemodynamic response and depressive mood in children with mild or moderate major depressive disorder during six weeks treatment without medication. The subjects were 10 patients with mild or moderate depression. They were depressive drug-naive children and adolescents. The scores of Depression Self Rating Scale (DSRS), the results of the Verbal Fluency Test (VFT), and the concentrations of oxy-hemoglobin (Oxy-Hb) of frontal pole brain assessed by two-channel near infrared spectroscopy (NIRS) after six weeks of treatment was compared with those of initial treatment. The score of DSRS was significantly reduced after six weeks of initial treatment (p<0.001, t-test). The word number of VFT was not significantly changed after six weeks of treatment. The oxy-Hb concentration significantly increased after six weeks of treatment (p<0.001, t-test). This study demonstrated that the concentration of oxy-Hb of frontopolar cortex in chi...
Seishin shinkeigaku zasshi = Psychiatria et neurologia Japonica, 2010
PLoS ONE, 2014
Background: On March 11, 2011, Japan was struck by a massive earthquake and tsunami. The tsunami ... more Background: On March 11, 2011, Japan was struck by a massive earthquake and tsunami. The tsunami caused tremendous damage and traumatized several people, including children. The aim of this study was to assess changes in traumatic symptoms 8, 20, and 30 months of the 2011 tsunami. Methods: The study comprised three groups. Copies of the Post-Traumatic Stress Symptoms for Children 15 items (PTSSC-15), a self-rating questionnaire on traumatic symptoms, were distributed to 12,524 children (8-month period), 12,193 children (20-month period), and 11,819 children (30-month period). An effective response of children 8 months, 20 months, and 30 month after the disaster was obtained in 11,639 (92.9%), 10,597 (86.9%), and 10,812 children (91.4%), respectively. We calculated the total score, PTSD subscale, and Depression subscale of PTSSC-15. We calculated the total score, PTSD subscale, and Depression subscale of PTSSC-15. Results: The PTSSC-15 total score and PTSD subscale of children belonging to 1st-9th grade groups who were tested 30 and 20 months after the tsunami significantly decreased compared with those of children tested 8 months after the tsunami. The PTSSC-15 total score and PTSD subscale of children in 1st-9th grade groups tested after 30 months did not decrease significantly compared with those of children tested after 20 months. The PTSSC-15 Depression subscale and PTSD subscale of children in 1st-9th grade groups tested after 30 months significantly decreased compared with those of children tested 8 months after the tsunami. The PTSSC-15 Depression subscale of children in 1st-9th grade groups evaluated after 30 months significantly decreased compared with those of children evaluated after 20 months. Conclusions: This study demonstrates that the traumatic symptoms of children who survived the massive tsunami improved with time. Nonetheless, the traumatic symptoms, which in some cases did not improve with time.
PLoS ONE, 2014
Background: The 2011 Japan massive tsunami traumatized many children. The aim of this study was t... more Background: The 2011 Japan massive tsunami traumatized many children. The aim of this study was to assess changes in strengths and difficulties experienced in home and school by among surviving children after the 2011 tsunami, in comparison with published normal Japanese data. Methods: In November 2012 (20 months after the disaster) and September 2013 (30 months after the disaster), the Strengths and Difficulties Questionnaire (SDQ), a questionnaire on children's strengths and difficulties in home and school activities, were distributed to 12,193 and 11,819 children, respectively. An effective response of children 20 months and 30 month after the disaster was obtained in 10,597 children (86.9%), and 10,812 children (91.4%), respectively. The SDQ scores evaluated by parents and teachers were compared with published normal Japanese SDQ scores. Results: The SDQ scores (emotional problems, conduct problems, hyperactivity/ inattention, peer relationship problems, and total difficulty score) evaluated by parents of children in the 4th to 9th grade who were evaluated after 30 and 20 months were significantly high compared with the published normal data of children without traumatic experiences (all P,0.001). The SDQ scores (prosocial behavior) evaluated by teachers of children in the 4th to 9th grade who were evaluated after 30 and 20 months were significantly low compared with the published normal data of children without traumatic experiences (all P,0.001).
Annals of General Psychiatry, 2013
Background Several lines of evidence suggest that dysfunction of the dorsolateral prefrontal cort... more Background Several lines of evidence suggest that dysfunction of the dorsolateral prefrontal cortex (DLPFC) and orbitofrontal cortex (OFC) contributes to the pathophysiology of pervasive developmental disorders (PDD). The purpose of this study was to investigate neuropsychological dysfunctions in both the DLPFC and OFC of children and adolescents with high-functioning PDD. Methods The Iowa gambling task (IGT), which reflects OFC function, and the Wisconsin Card Sorting Test (WCST), which reflects DLPFC function, were assigned to 19 children and early adolescents with high-functioning PDD and 19 healthy controls matched for gender, age, and intelligence. Results Compared to healthy controls, patients with high-functioning PDD displayed poorer performance on the IGT and the WCST. Conclusions These results indicate that both the DLPFC and OFC could be impaired in children and early adolescents with high-functioning PDD.
PLoS ONE, 2014
Background: On March 11, 2011, Japan was struck by a massive earthquake and tsunami. The tsunami ... more Background: On March 11, 2011, Japan was struck by a massive earthquake and tsunami. The tsunami caused tremendous damage and traumatized a number of people, including children. This study aimed to compare traumatic symptoms and daily life activity among children 20 months after the 2011 Great East Japan Earthquake and Tsunami with those observed after 8 months. Methods: The study comprised two groups. The first comprised 12,524 kindergarten, elementary school, and junior high school children in Ishinomaki City, Miyagi Prefecture, Japan, who were evaluated 8 months after the disaster. The second comprised 10,597 children from the same place who were evaluated 20 months after the disaster. The Post Traumatic Stress Symptoms for Children 15 items (PTSSC-15), a self-completion questionnaire on traumatic symptoms, and a questionnaire on children's daily life were distributed to the children. An effective response was obtained from 11,639 (92.9%, 8 months after) and 10,597 (86.9%, 20 months after) children. Results: The PTSSC-15 score was significantly higher in junior high school girls than in boys. The PTSSC-15 score was significantly higher in 4th-6th grade girls than in boys after 8 months. Elementary and junior high school children evaluated after 20 months had a significantly lower PTSSC-15 score than those evaluated after 8 months. The number of children having breakfast was significantly higher after 8 months than that after 20 months. In both the groups, children of all grades who had breakfast had a significantly lower PTSSC-15 score than those who did not have breakfast. Conclusions: We conclude that traumatic symptoms and daily life activity of children who survived the earthquake and tsunami improved over time.
PLoS ONE, 2013
Background/Aim: The questionnaire-children with difficulties (QCD) is a parent-assessed questionn... more Background/Aim: The questionnaire-children with difficulties (QCD) is a parent-assessed questionnaire designed to evaluate a child's difficulties in functioning during specific time periods of the day. In this study, the QCD was applied to determine the time periods of the day that are concerning for the parents of children with attention deficit hyperactivity disorder (ADHD). The results were compared with those for a community sample. Methods: Elementary and junior high school students with ADHD (243 boys, 55 girls) and a community sample of children (518 boys, 618 girls) were enrolled in this study. Their behaviors were assessed by the QCD, the ADHDrating scale (ADHD-RS), and the Oppositional Defiant Behavior Inventory (ODBI). The effects of gender (boy/girl) and diagnosis (ADHD/community sample) on the total QCD score were analyzed across each school grade (elementary/junior high school). Correlation coefficients between QCD and ADHD-RS/ODBI scores were analyzed. Results: The QCD score for the ADHD group was significantly lower than that for the community sample (P < 0.001). There were significantly strong correlations between "evening" and ADHD-RS and ODBI scores for all children with ADHD (r > 0.41, P < 0.001) and between "night" and inattention and oppositional symptoms for the girls with ADHD (r > 0.40, P < 0.001). Conclusions: Parents reported that children with ADHD faced greater difficulties in completing basic daily activities compared with the community controls, particularly in the evening. Furthermore, these difficulties were related to the severity of ADHD symptoms. The parents' perceptions depended on the gender, ADHD and oppositional symptoms, and the time period of the day. This study determined that children with ADHD face greater difficulties in daily functioning compared with community sample children, that these difficulties are time-dependent, and that these difficulties were particularly experienced in the evening.
The Journal of Pediatrics, 2014
To measure psychiatric symptoms exhibited by children in Ishinomaki City, Japan, an area severely... more To measure psychiatric symptoms exhibited by children in Ishinomaki City, Japan, an area severely damaged by the 2011 earthquake and tsunami, at 8 and 20 months post-tsunami to investigate differences in symptom severity and recovery rate by age, sex, and degree of trauma experienced. Prospective data were collected from children in elementary school (5th and 6th grades) and junior high school (8th and 9th grades). Students completed the Post-Traumatic Stress Symptoms for Children-15 (PTSSC-15) survey. Trauma severity was scored according to experiences of bereavement, home damage, and evacuation. In total, 3795 PTSSC-15 surveys were analyzed, yielding total scores, post-traumatic stress disorder (PTSD) factor subscores, and depression factor subscores, which were analyzed according to grade group, sex, and degree of trauma (trauma dose). In the elementary school children, mean total PTSSC-15 score, PTSD factor score, and depression factor score were significantly improved at 20 months post-tsunami compared with 8 months (P &amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;lt; .0001 for all), whereas there were no significant improvements in the junior high school children. In females of the older group, the depression factor score at 20 months post-tsunami was significantly higher than at 8 months (P &amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;lt; .01). Elementary school and junior high school children living near the epicenter of the 2011 Japan earthquake and tsunami exhibited marked differences in PTSD and depressive symptoms. The mental health status of elementary school children improved, whereas that of junior high school children did not.
Medical Journal of Australia, 2013
No to hattatsu = Brain and development, 2004
We studied sympathetic skin response (SSR) to visual emotional stimuli in two children with atten... more We studied sympathetic skin response (SSR) to visual emotional stimuli in two children with attention deficit/hyperactivity disorder (AD/HD) and nine healthy controls, and correlated them with comorbid disorders. They were diagnosed as having conduct disorder at administration. Two years after interventions of medical care, counseling and education, they were improving in behavior, one with oppositional defiant disorder (ODD) and another without ODD at this study. SSR were evoked in the patient without ODD (a 10-year-old boy), but not in the patient with ODD (a 12-year-old boy). These findings indicate failure of a patient with both AD/HD and ODD to respond autonomically to social stimuli, and suggest association between emotional signal and empathy.
Asian Journal of Psychiatry, 2019
Background: The Great East Japan Earthquake (GEJE) and tsunami of March 11, 2011 left behind many... more Background: The Great East Japan Earthquake (GEJE) and tsunami of March 11, 2011 left behind many survivors, including children. This study aimed to assess changes in traumatic symptoms with time among kindergarteners who experienced GEJE as infants and to discuss the relationship between these symptoms and the disaster experience. Methods: The 15-item Post-Traumatic Stress Symptoms for Children (PTSSC-15) questionnaire were distributed to the parents of kindergarteners (children aged 4-5 years) at 8, 20, 30, and 42 months after GEJE. Questionnaires regarding environmental damage conditions affecting the children were distributed to teachers 8 months after the tsunami. Results: The number of kindergarteners was 262, 255, 236, and 202 at 8, 20, 30, and 42 months after the disaster. The PTSSC-15 total score was not different between kindergartners with and without environmental
Neuropsychiatrie de l'Enfance et de l'Adolescence, 2012
Tensor imaging (DTI). All had completed the DAWBA diagnostic computerized interview that allows f... more Tensor imaging (DTI). All had completed the DAWBA diagnostic computerized interview that allows for symptom assessment. In a first study, we included 42 adolescents with SBP and 168 controls. Voxelwise comparisons were performed for DTI parameters using TBSS and for grey matter volume using voxel-based morphometry (VBM). In a second study, we compared regional grey matter volume using VBM between 119 adolescents with subthreshold depression and 475 controls. Results.-Significant decreases in global and regional Fractional Anisotropy were observed in SBP subjects in various WM tracts that have been reported altered in bipolar disorder, and GM volume was significantly decreased in the anterior cingulate cortex. In participants with subthreshold depression, GM was significantly decreased in the ventromedial prefrontal cortex, in the anterior cingulate cortex, and in both caudate nuclei. Discussion.-Results suggest alterations of brain structure in healthy subjects with subthreshold affective symptoms that are similar to those reported in fullblown manic or depressive episodes, which might lead to preventive strategies. However, whether those alterations are developmental or predict pathology needs further investigation.
<p>SD, standard deviation; N, number of cases.</p><p>Characteristics of childre... more <p>SD, standard deviation; N, number of cases.</p><p>Characteristics of children affected by the 2011 Japan earthquake and tsunami.</p
Sleep and Biological Rhythms, 2014
ABSTRACT Changes in sleep patterns among children following traumatic experiences may be indicati... more ABSTRACT Changes in sleep patterns among children following traumatic experiences may be indicative of post-traumatic psychiatric disorders and contribute to disease persistence. We evaluated long-term changes in the sleep habits of 1919 junior high school students who experienced the 2011 Japan earthquake and tsunami, and examined the associations among sleep patterns, trauma symptoms, and specific traumatic events. The Post-Traumatic Stress Symptoms for Children-15 items self-completion questionnaire was distributed to the children, and a questionnaire regarding three specific traumatic events (home damage, bereavement, and evacuation) was distributed to their teachers. Compared to the same survey conducted 8 months after the disaster, a 20-month post-disaster survey revealed significantly shorter mean sleep duration and a delay in sleep phase (P &lt; 0.0001). On the 20-month survey, weekday sleep duration was shorter and sleep–wake pattern delayed in children who had experienced home damage compared to children with no such experience (P &lt; 0.01). Children who had experienced bereavement also reported a shorter mean sleep duration on the 20-month survey compared to children reporting no bereavement experience (P &lt; 0.05). Differences in sleep duration between weekdays and holidays at 20 months post-disaster suggested a sleep debt due to sleep disruption. There were no significant differences in Post-Traumatic Stress Symptoms for Children-15 items total scores between groups defined by the type of traumatic experience. Traumatic events (home damage, bereavement) associated with the 2011 Japan earthquake and tsunami have caused long-term sleep disruption in children from this region.
PloS one, 2015
The Questionnaire: Children with Difficulties (QCD) is a parent-assessed questionnaire designed t... more The Questionnaire: Children with Difficulties (QCD) is a parent-assessed questionnaire designed to evaluate child's difficulties in functioning during specific periods of the day. This study aimed to evaluate difficulties in daily functioning of children and adolescents with pervasive developmental disorder (PDD) using the QCD. Results were compared with those for a community sample. A case-control design was used. The cases comprised elementary school students (182 males, 51 females) and junior high school students (100 males, 39 females) with PDD, whereas a community sample of elementary school students (568 males, 579 females) and junior high school students (180 males, 183 females) was enrolled as controls. Their behavior was assessed using the QCD, the Tokyo Autistic Behavior Scale (TABS), the ADHD-rating scale (ADHD-RS), and the Oppositional Defiant Behavior Inventory (ODBI) for elementary and junior high school students, respectively. Effects of gender and diagnosis on th...
Journal of affective disorders, Jan 20, 2015
The parent-assessed children-with-difficulties questionnaire (Questionnaire-Children with Difficu... more The parent-assessed children-with-difficulties questionnaire (Questionnaire-Children with Difficulties; QCD) is designed to evaluate a child׳s difficulties in functioning during specific periods of the day. This study aimed to use the QCD to evaluate the difficulties in daily functioning experienced by children with depressive disorders. A case-control design was used. The cases comprised 90 junior high school students with depressive disorder, whereas a community sample of 363 junior high school students was enrolled as controls. Behaviors were assessed using the QCD, Depression Self-Rating Scale (DSRS), Tokyo Autistic Behavior Scale (TABS), attention deficit hyperactivity disorder-rating scale (ADHD-RS), and Oppositional Defiant Behavior Inventory (ODBI). We then analyzed the effects of sex and diagnosis on the QCD scores as well as the correlation coefficients between the QCD and the other questionnaires. We included 90 cases (33 boys, 57 girls) with depressive disorders and 363 ...
PloS one, 2014
The aim of this study was to evaluate the frontopolar hemodynamic response and depressive mood in... more The aim of this study was to evaluate the frontopolar hemodynamic response and depressive mood in children with mild or moderate major depressive disorder during six weeks treatment without medication. The subjects were 10 patients with mild or moderate depression. They were depressive drug-naive children and adolescents. The scores of Depression Self Rating Scale (DSRS), the results of the Verbal Fluency Test (VFT), and the concentrations of oxy-hemoglobin (Oxy-Hb) of frontal pole brain assessed by two-channel near infrared spectroscopy (NIRS) after six weeks of treatment was compared with those of initial treatment. The score of DSRS was significantly reduced after six weeks of initial treatment (p<0.001, t-test). The word number of VFT was not significantly changed after six weeks of treatment. The oxy-Hb concentration significantly increased after six weeks of treatment (p<0.001, t-test). This study demonstrated that the concentration of oxy-Hb of frontopolar cortex in chi...
Seishin shinkeigaku zasshi = Psychiatria et neurologia Japonica, 2010
PLoS ONE, 2014
Background: On March 11, 2011, Japan was struck by a massive earthquake and tsunami. The tsunami ... more Background: On March 11, 2011, Japan was struck by a massive earthquake and tsunami. The tsunami caused tremendous damage and traumatized several people, including children. The aim of this study was to assess changes in traumatic symptoms 8, 20, and 30 months of the 2011 tsunami. Methods: The study comprised three groups. Copies of the Post-Traumatic Stress Symptoms for Children 15 items (PTSSC-15), a self-rating questionnaire on traumatic symptoms, were distributed to 12,524 children (8-month period), 12,193 children (20-month period), and 11,819 children (30-month period). An effective response of children 8 months, 20 months, and 30 month after the disaster was obtained in 11,639 (92.9%), 10,597 (86.9%), and 10,812 children (91.4%), respectively. We calculated the total score, PTSD subscale, and Depression subscale of PTSSC-15. We calculated the total score, PTSD subscale, and Depression subscale of PTSSC-15. Results: The PTSSC-15 total score and PTSD subscale of children belonging to 1st-9th grade groups who were tested 30 and 20 months after the tsunami significantly decreased compared with those of children tested 8 months after the tsunami. The PTSSC-15 total score and PTSD subscale of children in 1st-9th grade groups tested after 30 months did not decrease significantly compared with those of children tested after 20 months. The PTSSC-15 Depression subscale and PTSD subscale of children in 1st-9th grade groups tested after 30 months significantly decreased compared with those of children tested 8 months after the tsunami. The PTSSC-15 Depression subscale of children in 1st-9th grade groups evaluated after 30 months significantly decreased compared with those of children evaluated after 20 months. Conclusions: This study demonstrates that the traumatic symptoms of children who survived the massive tsunami improved with time. Nonetheless, the traumatic symptoms, which in some cases did not improve with time.
PLoS ONE, 2014
Background: The 2011 Japan massive tsunami traumatized many children. The aim of this study was t... more Background: The 2011 Japan massive tsunami traumatized many children. The aim of this study was to assess changes in strengths and difficulties experienced in home and school by among surviving children after the 2011 tsunami, in comparison with published normal Japanese data. Methods: In November 2012 (20 months after the disaster) and September 2013 (30 months after the disaster), the Strengths and Difficulties Questionnaire (SDQ), a questionnaire on children's strengths and difficulties in home and school activities, were distributed to 12,193 and 11,819 children, respectively. An effective response of children 20 months and 30 month after the disaster was obtained in 10,597 children (86.9%), and 10,812 children (91.4%), respectively. The SDQ scores evaluated by parents and teachers were compared with published normal Japanese SDQ scores. Results: The SDQ scores (emotional problems, conduct problems, hyperactivity/ inattention, peer relationship problems, and total difficulty score) evaluated by parents of children in the 4th to 9th grade who were evaluated after 30 and 20 months were significantly high compared with the published normal data of children without traumatic experiences (all P,0.001). The SDQ scores (prosocial behavior) evaluated by teachers of children in the 4th to 9th grade who were evaluated after 30 and 20 months were significantly low compared with the published normal data of children without traumatic experiences (all P,0.001).
Annals of General Psychiatry, 2013
Background Several lines of evidence suggest that dysfunction of the dorsolateral prefrontal cort... more Background Several lines of evidence suggest that dysfunction of the dorsolateral prefrontal cortex (DLPFC) and orbitofrontal cortex (OFC) contributes to the pathophysiology of pervasive developmental disorders (PDD). The purpose of this study was to investigate neuropsychological dysfunctions in both the DLPFC and OFC of children and adolescents with high-functioning PDD. Methods The Iowa gambling task (IGT), which reflects OFC function, and the Wisconsin Card Sorting Test (WCST), which reflects DLPFC function, were assigned to 19 children and early adolescents with high-functioning PDD and 19 healthy controls matched for gender, age, and intelligence. Results Compared to healthy controls, patients with high-functioning PDD displayed poorer performance on the IGT and the WCST. Conclusions These results indicate that both the DLPFC and OFC could be impaired in children and early adolescents with high-functioning PDD.
PLoS ONE, 2014
Background: On March 11, 2011, Japan was struck by a massive earthquake and tsunami. The tsunami ... more Background: On March 11, 2011, Japan was struck by a massive earthquake and tsunami. The tsunami caused tremendous damage and traumatized a number of people, including children. This study aimed to compare traumatic symptoms and daily life activity among children 20 months after the 2011 Great East Japan Earthquake and Tsunami with those observed after 8 months. Methods: The study comprised two groups. The first comprised 12,524 kindergarten, elementary school, and junior high school children in Ishinomaki City, Miyagi Prefecture, Japan, who were evaluated 8 months after the disaster. The second comprised 10,597 children from the same place who were evaluated 20 months after the disaster. The Post Traumatic Stress Symptoms for Children 15 items (PTSSC-15), a self-completion questionnaire on traumatic symptoms, and a questionnaire on children's daily life were distributed to the children. An effective response was obtained from 11,639 (92.9%, 8 months after) and 10,597 (86.9%, 20 months after) children. Results: The PTSSC-15 score was significantly higher in junior high school girls than in boys. The PTSSC-15 score was significantly higher in 4th-6th grade girls than in boys after 8 months. Elementary and junior high school children evaluated after 20 months had a significantly lower PTSSC-15 score than those evaluated after 8 months. The number of children having breakfast was significantly higher after 8 months than that after 20 months. In both the groups, children of all grades who had breakfast had a significantly lower PTSSC-15 score than those who did not have breakfast. Conclusions: We conclude that traumatic symptoms and daily life activity of children who survived the earthquake and tsunami improved over time.
PLoS ONE, 2013
Background/Aim: The questionnaire-children with difficulties (QCD) is a parent-assessed questionn... more Background/Aim: The questionnaire-children with difficulties (QCD) is a parent-assessed questionnaire designed to evaluate a child's difficulties in functioning during specific time periods of the day. In this study, the QCD was applied to determine the time periods of the day that are concerning for the parents of children with attention deficit hyperactivity disorder (ADHD). The results were compared with those for a community sample. Methods: Elementary and junior high school students with ADHD (243 boys, 55 girls) and a community sample of children (518 boys, 618 girls) were enrolled in this study. Their behaviors were assessed by the QCD, the ADHDrating scale (ADHD-RS), and the Oppositional Defiant Behavior Inventory (ODBI). The effects of gender (boy/girl) and diagnosis (ADHD/community sample) on the total QCD score were analyzed across each school grade (elementary/junior high school). Correlation coefficients between QCD and ADHD-RS/ODBI scores were analyzed. Results: The QCD score for the ADHD group was significantly lower than that for the community sample (P < 0.001). There were significantly strong correlations between "evening" and ADHD-RS and ODBI scores for all children with ADHD (r > 0.41, P < 0.001) and between "night" and inattention and oppositional symptoms for the girls with ADHD (r > 0.40, P < 0.001). Conclusions: Parents reported that children with ADHD faced greater difficulties in completing basic daily activities compared with the community controls, particularly in the evening. Furthermore, these difficulties were related to the severity of ADHD symptoms. The parents' perceptions depended on the gender, ADHD and oppositional symptoms, and the time period of the day. This study determined that children with ADHD face greater difficulties in daily functioning compared with community sample children, that these difficulties are time-dependent, and that these difficulties were particularly experienced in the evening.
The Journal of Pediatrics, 2014
To measure psychiatric symptoms exhibited by children in Ishinomaki City, Japan, an area severely... more To measure psychiatric symptoms exhibited by children in Ishinomaki City, Japan, an area severely damaged by the 2011 earthquake and tsunami, at 8 and 20 months post-tsunami to investigate differences in symptom severity and recovery rate by age, sex, and degree of trauma experienced. Prospective data were collected from children in elementary school (5th and 6th grades) and junior high school (8th and 9th grades). Students completed the Post-Traumatic Stress Symptoms for Children-15 (PTSSC-15) survey. Trauma severity was scored according to experiences of bereavement, home damage, and evacuation. In total, 3795 PTSSC-15 surveys were analyzed, yielding total scores, post-traumatic stress disorder (PTSD) factor subscores, and depression factor subscores, which were analyzed according to grade group, sex, and degree of trauma (trauma dose). In the elementary school children, mean total PTSSC-15 score, PTSD factor score, and depression factor score were significantly improved at 20 months post-tsunami compared with 8 months (P &amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;lt; .0001 for all), whereas there were no significant improvements in the junior high school children. In females of the older group, the depression factor score at 20 months post-tsunami was significantly higher than at 8 months (P &amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;lt; .01). Elementary school and junior high school children living near the epicenter of the 2011 Japan earthquake and tsunami exhibited marked differences in PTSD and depressive symptoms. The mental health status of elementary school children improved, whereas that of junior high school children did not.