Richard Lane - Academia.edu (original) (raw)
Papers by Richard Lane
The International Journal of Psychoanalysis, Apr 1, 2011
The need to establish the efficacy of psychoanalytic long-term treatments has promoted efforts to... more The need to establish the efficacy of psychoanalytic long-term treatments has promoted efforts to operationalize psychic structure and structural change as key elements of psychoanalytic treatments and their outcomes. Current, promising measures of structural change, however, require extensive interviews and rater training. The purpose of this paper is to present the theory and measurement of Levels of Emotional Awareness (LEA) and to illustrate its use based on clinical case vignettes. The LEA model lays out a developmental trajectory of affective processing, akin to Piaget's theory of sensory-cognitive development, from implicit to explicit processing. Unlike other current assessments of psychic structure (Scales of Psychological Capacities, Reflective Functioning, Operationalized Psychodynamic Diagnostics) requiring intensive rater and interviewer training, it is easily assessed based on a self-report performance test. The LEA model conceptualizes a basic psychological capacity, affect processing. As we will illustrate using two case vignettes, by operationalizing implicit and explicit modes of affect processing, it provides a clinical measure of emotional awareness that is highly pertinent to the ongoing psychoanalytic debate on the nature and mechanisms of structural change.
Zeitschrift fur Psychosomatische Medizin und Psychotherapie, 2016
Affective change has been considered the hallmark of therapeutic change in psychoanalysis. Psycho... more Affective change has been considered the hallmark of therapeutic change in psychoanalysis. Psychoanalytic writers have begun to incorporate theoretically the advanced understanding of emotional processing and transformation of the affective neurosciences. We ask if this theoretical advancement is reflected in treatment techniques addressing the processing of emotion. We review psychoanalytic models and treatment recommendations of maladaptive affect processing in the light of a neuroscientifically informed model of achieving psychotherapeutic change by activation and reconsolidation of emotional memory. Emotions tend to be treated as other mental contents, resulting in a lack of specific psychodynamic techniques to work with emotions. Manualized technical modifications addressing affect regulation have been successfully tested in patients with personality pathology, but not for psychodynamic treatments of axis I disorders. Emotional memories need to be activated in order to be modif...
Acta medica portuguesa, 2013
INTRODUCTION The Levels of Emotional Awareness Scale (LEAS) was developed to assess the emotional... more INTRODUCTION The Levels of Emotional Awareness Scale (LEAS) was developed to assess the emotional awareness construct, based on a cognitive-developmental perspective and influenced by the Piaget and Werner theories. It is composed of 20 emotion-evoking scenes and has been used in multiple researches related to emotion regulation, alexithymia and psychiatric disorders. It is a well-documented, valid and reliable measure. Due to the extent of LEAS, some investigators have been using one of the parallel forms (LEAS-A), which is a part of the complete version, nevertheless there is a gap of studies concerning LEAS-A psychometric qualities. In the absence of measures for assessing the organization of the emotional experience in Portuguese samples, we developed the Portuguese version of LEAS, characterizing reliability and validity indicators and the same for LEAS-A. MATERIALS AND METHODS Three different studies were carried out with these versions, two with university students and anothe...
PLoS ONE, 2014
Objective: The Levels of Emotional Awareness Scale (LEAS) as a performance task discriminates bet... more Objective: The Levels of Emotional Awareness Scale (LEAS) as a performance task discriminates between implicit or subconscious and explicit or conscious levels of emotional awareness. An impaired awareness of one's feeling states may influence emotion regulation strategies and self-reports of negative emotions. To determine this influence, we applied the LEAS and self-report measures for emotion regulation strategies and negative affect in a representative sample of the German general population.
NeuroImage, Jan 23, 2009
This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apol... more This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at http://www.elsevier.com/locate/withdrawalpolicy.
Biological psychology, Jan 18, 2015
We tested the hypothesis that reduced rostral anterior cingulate cortex (rACC)-subcortical functi... more We tested the hypothesis that reduced rostral anterior cingulate cortex (rACC)-subcortical functional connectivity in depressed subjects might account for depression-related autonomic dysregulation. Ten healthy and ten depressed subjects categorized their immediate subjective emotional responses to picture sets while undergoing functional magnetic resonance imaging and electrocardiography. Using an rACC cluster commonly activated in both groups by emotion categorization as a seed region, we then performed voxel-wise functional connectivity analyses to examine rACC connectivity across the brain in depressed and control subjects. rACC had significantly stronger connectivity with a region of the inferior pons in controls than in depressed subjects. Within-subjects differences in rACC-pons connectivity also significantly correlated with measures of both heart rate variability and depression severity. These findings support the hypothesis that autonomic dysregulation in depression may be...
Social cognitive and affective neuroscience, Jan 19, 2014
It is unclear whether reflective awareness of emotions is related to extent and intensity of impl... more It is unclear whether reflective awareness of emotions is related to extent and intensity of implicit affective reactions. This study is the first to investigate automatic brain reactivity to emotional stimuli as a function of trait emotional awareness. To assess emotional awareness the Levels of Emotional Awareness Scale (LEAS) was administered. During scanning, masked happy, angry, fearful and neutral facial expressions were presented to 46 healthy subjects, who had to rate the fit between artificial and emotional words. The rating procedure allowed assessment of shifts in implicit affectivity due to emotion faces. Trait emotional awareness was associated with increased activation in the primary somatosensory cortex, inferior parietal lobule, anterior cingulate gyrus, middle frontal and cerebellar areas, thalamus, putamen and amygdala in response to masked happy faces. LEAS correlated positively with shifts in implicit affect caused by masked happy faces. According to our findings...
Neuropsychologia, Jan 2, 2014
The ability to recognize subtle facial expressions can be valuable in social interaction to infer... more The ability to recognize subtle facial expressions can be valuable in social interaction to infer emotions and intentions of others. Research has shown that the personality trait of alexithymia is linked to difficulties labeling facial expressions especially when these are presented with temporal constraints. The present study investigates the neural mechanisms underlying this deficit. 50 young healthy volunteers had to label briefly presented (≤100ms) emotional (happy, angry, fearful) facial expressions masked by a neutral expression while undergoing functional magnetic resonance imaging (fMRI). A multi-method approach (20-Item Toronto Alexithymia Scale and Toronto Structured Interview for Alexithymia) was administered to assess alexithymic tendencies. Behavioral results point to a global deficit of alexithymic individuals in labeling brief facial expressions. Alexithymia was related to decreased response of the ventral striatum to negative facial expressions. Moreover, alexithymia...
JAMA Psychiatry, 2014
Individuals with cocaine use disorder (CUD) have difficulty monitoring ongoing behavior, possibly... more Individuals with cocaine use disorder (CUD) have difficulty monitoring ongoing behavior, possibly stemming from dysfunction of brain regions mediating insight and self-awareness. To investigate the neural correlates of impaired insight in addiction using a combined functional magnetic resonance imaging and voxel-based morphometry approach. This multimodal imaging study was performed at the Clinical Research Center at Brookhaven National Laboratory. The study included 33 CUD cases and 20 healthy controls. Functional magnetic resonance imaging, voxel-based morphometry, Levels of Emotional Awareness Scale, and drug use variables. Compared with the other 2 study groups, the impaired insight CUD group had lower error-induced rostral anterior cingulate cortex (rACC) activity as associated with more frequent cocaine use, less gray matter within the rACC, and lower Levels of Emotional Awareness Scale scores. These results point to rACC functional and structural abnormalities and diminished emotional awareness in a subpopulation of CUD cases characterized by impaired insight. Because the rACC has been implicated in appraising the affective and motivational significance of errors and other types of self-referential processing, functional and structural abnormalities in this region could result in lessened concern (frequently ascribed to minimization and denial) about behavioral outcomes that could potentially culminate in increased drug use. Treatments that target this CUD subgroup could focus on enhancing the salience of errors (eg, lapses).
The Behavioral and brain sciences, Jan 15, 2014
Since Freud clinicians have understood that disturbing memories contribute to psychopathology and... more Since Freud clinicians have understood that disturbing memories contribute to psychopathology and that new emotional experiences contribute to therapeutic change. Yet, controversy remains about what is truly essential to bring about psychotherapeutic change. Mounting evidence from empirical studies suggests that emotional arousal is a key ingredient in therapeutic change in many modalities. In addition, memory seems to play an important role but there is a lack of consensus on the role of understanding what happened in the past in bringing about therapeutic change. The core idea of this paper is that therapeutic change in a variety of modalities, including behavioral therapy, cognitive-behavioral therapy, emotion-focused and psychodynamic psychotherapy, results from the updating of prior emotional memories through a process of reconsolidation that incorporates new emotional experiences. The authors present an integrative memory model with three interactive components - autobiographi...
Psychiatry research, Jan 30, 2014
Regions of the medial visceromotor network (MVN) participate in concurrently regulating shifts in... more Regions of the medial visceromotor network (MVN) participate in concurrently regulating shifts in both affective state and cardiac vagal control in the attentional background, and this regulatory ability may be impaired in depression. We examined whether the relationship between changes in BOLD within MVN regions and changes in cardiac vagal control (VC) during affective state shifting changed with depression treatment. Ten depressed and ten control subjects performed an emotional counting Stroop task designed to trigger affective change in the attentional background while undergoing functional magnetic resonance imaging and concurrent electrocardiography (ECG) on four occasions: week 0 (pre-treatment) and weeks 2, 6 and 12 of treatment on sertraline. We measured the absolute value of change between adjacent emotional and neutral conditions in both VC and the BOLD signal in specific regions of the MVN. Over time consistent increases were observed in BOLD-VC magnitude correlations in...
Psychology & Health, 2002
In the present paper we present the outlines of a model that may help to guide us in our understa... more In the present paper we present the outlines of a model that may help to guide us in our understanding of the relationship between perseverative thinking and health. We will emphasize the relationship between perseverative thinking and vagal cardiac control and propose a group of underlying neural structures that serve to integrate these functions in the service of self-regulation and adaptability of the organism. We will attempt to place this network in the context of systems models which involve feedback and feedforward circuits with special attention to negative feedback mechanisms and inhibitory processes. From a systems perspective, inhibitory processes can be viewed as negative feedback circuits that allow for the interruption of ongoing behavior and the re-deployment of resources to other tasks. When these negative feedback mechanisms are compromised, positive feedback loops may develop as a result of dis-inhibition. From this perspective, the relative sympathetic activation seen in perseverative thinking may represent dis-inhibition due to faulty inhibitory mechanisms.
Proceedings of the National Academy of Sciences, 1995
Electrophysiological and neuroanatomical methods were used to determine the extent to which neona... more Electrophysiological and neuroanatomical methods were used to determine the extent to which neonatal forelimb removal altered the organization of the cuneate nucleus and representations of the foreand hindlimbs in the primary somatosensory cortex of adult rats. Neonatal forelimb removal resulted in invasion of the cuneate nucleus by sciatic nerve primary afferents and development of cuneothalamic projection neurons with split receptive fields that included both the hindlimb and forelimb stump. Mapping in the primary somatosensory cortex of the neonatally manipulated adult rats demonstrated abnormalities, but the major change observed in the cuneate nucleus was demonstrable at only a few (5%) cortical recording sites in the remaining stump representation and there were none at all in the hindlimb representation. These results suggest that lesion-induced brainstem reorganization may be functionally suppressed at either the thalamic or cortical level.
Neuroscience & Biobehavioral Reviews, 2009
NeuroImage, 2008
The dorsal anterior cingulate cortex (dACC) is commonly thought to subserve primarily cognitive f... more The dorsal anterior cingulate cortex (dACC) is commonly thought to subserve primarily cognitive functions, but has been strongly implicated in the allocation of attention to emotional information. In a previous positron emission tomography (PET) study, we observed that women with higher emotional awareness as measured by the Levels of Emotional Awareness Scale (LEAS) showed greater changes in regional cerebral blood flow (rCBF) in dACC induced by emotional films and recall. In the current study, we tested whether these effects were due to the processing of any nonneutral stimulus, or were specific to conditions of high emotional arousal. Our results extend the previous finding by demonstrating a positive correlation between emotional awareness and dACC activity only in the context of viewing highly arousing pictures. No such relationship was observed when comparing pleasant or unpleasant pictures to neutral or to each other. We also observed that the relationship between LEAS and dACC activity was present in both sexes but stronger in women than men. These results reinforce the concept that greater trait awareness of one's own emotional experiences is associated with greater engagement of the dACC during emotional arousal, which we suggest may reflect greater attentional processing of emotional information.
Journal of Affective Disorders, 2000
In the present paper we present the outlines of a model that integrates autonomic, attentional, a... more In the present paper we present the outlines of a model that integrates autonomic, attentional, and affective systems into a functional and structural network that may help to guide us in our understanding of emotion regulation and dysregulation. We will emphasize the relationship between attentional regulation and affective processes and propose a group of underlying physiological systems that serve to integrate these functions in the service of self-regulation and adaptability of the organism. We will attempt to place this network in the context of dynamical systems models which involve feedback and feedforward circuits with special attention to negative feedback mechanisms, inhibitory processes, and their role in response selection. From a systems perspective, inhibitory processes can be viewed as negative feedback circuits that allow for the interruption of ongoing behavior and the re-deployment of resources to other tasks. When these negative feedback mechanisms are compromised, positive feedback loops may develop as a result (of dis-inhibition). From this perspective, the relative sympathetic activation seen in anxiety disorders may represent dis-inhibition due to faulty inhibitory mechanisms.
European Neuropsychopharmacology, 1995
Behavior Research Methods, 2010
Annals of Noninvasive Electrocardiology, 2009
We sought to determine whether the circumstances preceding an arrhythmic event differed from thos... more We sought to determine whether the circumstances preceding an arrhythmic event differed from those preceding a prior control occasion in patients with Long QT Syndrome (LQTS), a wellcharacterized genetic disorder that puts affected individuals at risk for sudden cardiac death.
American Journal of Psychiatry, 2003
The International Journal of Psychoanalysis, Apr 1, 2011
The need to establish the efficacy of psychoanalytic long-term treatments has promoted efforts to... more The need to establish the efficacy of psychoanalytic long-term treatments has promoted efforts to operationalize psychic structure and structural change as key elements of psychoanalytic treatments and their outcomes. Current, promising measures of structural change, however, require extensive interviews and rater training. The purpose of this paper is to present the theory and measurement of Levels of Emotional Awareness (LEA) and to illustrate its use based on clinical case vignettes. The LEA model lays out a developmental trajectory of affective processing, akin to Piaget's theory of sensory-cognitive development, from implicit to explicit processing. Unlike other current assessments of psychic structure (Scales of Psychological Capacities, Reflective Functioning, Operationalized Psychodynamic Diagnostics) requiring intensive rater and interviewer training, it is easily assessed based on a self-report performance test. The LEA model conceptualizes a basic psychological capacity, affect processing. As we will illustrate using two case vignettes, by operationalizing implicit and explicit modes of affect processing, it provides a clinical measure of emotional awareness that is highly pertinent to the ongoing psychoanalytic debate on the nature and mechanisms of structural change.
Zeitschrift fur Psychosomatische Medizin und Psychotherapie, 2016
Affective change has been considered the hallmark of therapeutic change in psychoanalysis. Psycho... more Affective change has been considered the hallmark of therapeutic change in psychoanalysis. Psychoanalytic writers have begun to incorporate theoretically the advanced understanding of emotional processing and transformation of the affective neurosciences. We ask if this theoretical advancement is reflected in treatment techniques addressing the processing of emotion. We review psychoanalytic models and treatment recommendations of maladaptive affect processing in the light of a neuroscientifically informed model of achieving psychotherapeutic change by activation and reconsolidation of emotional memory. Emotions tend to be treated as other mental contents, resulting in a lack of specific psychodynamic techniques to work with emotions. Manualized technical modifications addressing affect regulation have been successfully tested in patients with personality pathology, but not for psychodynamic treatments of axis I disorders. Emotional memories need to be activated in order to be modif...
Acta medica portuguesa, 2013
INTRODUCTION The Levels of Emotional Awareness Scale (LEAS) was developed to assess the emotional... more INTRODUCTION The Levels of Emotional Awareness Scale (LEAS) was developed to assess the emotional awareness construct, based on a cognitive-developmental perspective and influenced by the Piaget and Werner theories. It is composed of 20 emotion-evoking scenes and has been used in multiple researches related to emotion regulation, alexithymia and psychiatric disorders. It is a well-documented, valid and reliable measure. Due to the extent of LEAS, some investigators have been using one of the parallel forms (LEAS-A), which is a part of the complete version, nevertheless there is a gap of studies concerning LEAS-A psychometric qualities. In the absence of measures for assessing the organization of the emotional experience in Portuguese samples, we developed the Portuguese version of LEAS, characterizing reliability and validity indicators and the same for LEAS-A. MATERIALS AND METHODS Three different studies were carried out with these versions, two with university students and anothe...
PLoS ONE, 2014
Objective: The Levels of Emotional Awareness Scale (LEAS) as a performance task discriminates bet... more Objective: The Levels of Emotional Awareness Scale (LEAS) as a performance task discriminates between implicit or subconscious and explicit or conscious levels of emotional awareness. An impaired awareness of one's feeling states may influence emotion regulation strategies and self-reports of negative emotions. To determine this influence, we applied the LEAS and self-report measures for emotion regulation strategies and negative affect in a representative sample of the German general population.
NeuroImage, Jan 23, 2009
This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apol... more This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at http://www.elsevier.com/locate/withdrawalpolicy.
Biological psychology, Jan 18, 2015
We tested the hypothesis that reduced rostral anterior cingulate cortex (rACC)-subcortical functi... more We tested the hypothesis that reduced rostral anterior cingulate cortex (rACC)-subcortical functional connectivity in depressed subjects might account for depression-related autonomic dysregulation. Ten healthy and ten depressed subjects categorized their immediate subjective emotional responses to picture sets while undergoing functional magnetic resonance imaging and electrocardiography. Using an rACC cluster commonly activated in both groups by emotion categorization as a seed region, we then performed voxel-wise functional connectivity analyses to examine rACC connectivity across the brain in depressed and control subjects. rACC had significantly stronger connectivity with a region of the inferior pons in controls than in depressed subjects. Within-subjects differences in rACC-pons connectivity also significantly correlated with measures of both heart rate variability and depression severity. These findings support the hypothesis that autonomic dysregulation in depression may be...
Social cognitive and affective neuroscience, Jan 19, 2014
It is unclear whether reflective awareness of emotions is related to extent and intensity of impl... more It is unclear whether reflective awareness of emotions is related to extent and intensity of implicit affective reactions. This study is the first to investigate automatic brain reactivity to emotional stimuli as a function of trait emotional awareness. To assess emotional awareness the Levels of Emotional Awareness Scale (LEAS) was administered. During scanning, masked happy, angry, fearful and neutral facial expressions were presented to 46 healthy subjects, who had to rate the fit between artificial and emotional words. The rating procedure allowed assessment of shifts in implicit affectivity due to emotion faces. Trait emotional awareness was associated with increased activation in the primary somatosensory cortex, inferior parietal lobule, anterior cingulate gyrus, middle frontal and cerebellar areas, thalamus, putamen and amygdala in response to masked happy faces. LEAS correlated positively with shifts in implicit affect caused by masked happy faces. According to our findings...
Neuropsychologia, Jan 2, 2014
The ability to recognize subtle facial expressions can be valuable in social interaction to infer... more The ability to recognize subtle facial expressions can be valuable in social interaction to infer emotions and intentions of others. Research has shown that the personality trait of alexithymia is linked to difficulties labeling facial expressions especially when these are presented with temporal constraints. The present study investigates the neural mechanisms underlying this deficit. 50 young healthy volunteers had to label briefly presented (≤100ms) emotional (happy, angry, fearful) facial expressions masked by a neutral expression while undergoing functional magnetic resonance imaging (fMRI). A multi-method approach (20-Item Toronto Alexithymia Scale and Toronto Structured Interview for Alexithymia) was administered to assess alexithymic tendencies. Behavioral results point to a global deficit of alexithymic individuals in labeling brief facial expressions. Alexithymia was related to decreased response of the ventral striatum to negative facial expressions. Moreover, alexithymia...
JAMA Psychiatry, 2014
Individuals with cocaine use disorder (CUD) have difficulty monitoring ongoing behavior, possibly... more Individuals with cocaine use disorder (CUD) have difficulty monitoring ongoing behavior, possibly stemming from dysfunction of brain regions mediating insight and self-awareness. To investigate the neural correlates of impaired insight in addiction using a combined functional magnetic resonance imaging and voxel-based morphometry approach. This multimodal imaging study was performed at the Clinical Research Center at Brookhaven National Laboratory. The study included 33 CUD cases and 20 healthy controls. Functional magnetic resonance imaging, voxel-based morphometry, Levels of Emotional Awareness Scale, and drug use variables. Compared with the other 2 study groups, the impaired insight CUD group had lower error-induced rostral anterior cingulate cortex (rACC) activity as associated with more frequent cocaine use, less gray matter within the rACC, and lower Levels of Emotional Awareness Scale scores. These results point to rACC functional and structural abnormalities and diminished emotional awareness in a subpopulation of CUD cases characterized by impaired insight. Because the rACC has been implicated in appraising the affective and motivational significance of errors and other types of self-referential processing, functional and structural abnormalities in this region could result in lessened concern (frequently ascribed to minimization and denial) about behavioral outcomes that could potentially culminate in increased drug use. Treatments that target this CUD subgroup could focus on enhancing the salience of errors (eg, lapses).
The Behavioral and brain sciences, Jan 15, 2014
Since Freud clinicians have understood that disturbing memories contribute to psychopathology and... more Since Freud clinicians have understood that disturbing memories contribute to psychopathology and that new emotional experiences contribute to therapeutic change. Yet, controversy remains about what is truly essential to bring about psychotherapeutic change. Mounting evidence from empirical studies suggests that emotional arousal is a key ingredient in therapeutic change in many modalities. In addition, memory seems to play an important role but there is a lack of consensus on the role of understanding what happened in the past in bringing about therapeutic change. The core idea of this paper is that therapeutic change in a variety of modalities, including behavioral therapy, cognitive-behavioral therapy, emotion-focused and psychodynamic psychotherapy, results from the updating of prior emotional memories through a process of reconsolidation that incorporates new emotional experiences. The authors present an integrative memory model with three interactive components - autobiographi...
Psychiatry research, Jan 30, 2014
Regions of the medial visceromotor network (MVN) participate in concurrently regulating shifts in... more Regions of the medial visceromotor network (MVN) participate in concurrently regulating shifts in both affective state and cardiac vagal control in the attentional background, and this regulatory ability may be impaired in depression. We examined whether the relationship between changes in BOLD within MVN regions and changes in cardiac vagal control (VC) during affective state shifting changed with depression treatment. Ten depressed and ten control subjects performed an emotional counting Stroop task designed to trigger affective change in the attentional background while undergoing functional magnetic resonance imaging and concurrent electrocardiography (ECG) on four occasions: week 0 (pre-treatment) and weeks 2, 6 and 12 of treatment on sertraline. We measured the absolute value of change between adjacent emotional and neutral conditions in both VC and the BOLD signal in specific regions of the MVN. Over time consistent increases were observed in BOLD-VC magnitude correlations in...
Psychology & Health, 2002
In the present paper we present the outlines of a model that may help to guide us in our understa... more In the present paper we present the outlines of a model that may help to guide us in our understanding of the relationship between perseverative thinking and health. We will emphasize the relationship between perseverative thinking and vagal cardiac control and propose a group of underlying neural structures that serve to integrate these functions in the service of self-regulation and adaptability of the organism. We will attempt to place this network in the context of systems models which involve feedback and feedforward circuits with special attention to negative feedback mechanisms and inhibitory processes. From a systems perspective, inhibitory processes can be viewed as negative feedback circuits that allow for the interruption of ongoing behavior and the re-deployment of resources to other tasks. When these negative feedback mechanisms are compromised, positive feedback loops may develop as a result of dis-inhibition. From this perspective, the relative sympathetic activation seen in perseverative thinking may represent dis-inhibition due to faulty inhibitory mechanisms.
Proceedings of the National Academy of Sciences, 1995
Electrophysiological and neuroanatomical methods were used to determine the extent to which neona... more Electrophysiological and neuroanatomical methods were used to determine the extent to which neonatal forelimb removal altered the organization of the cuneate nucleus and representations of the foreand hindlimbs in the primary somatosensory cortex of adult rats. Neonatal forelimb removal resulted in invasion of the cuneate nucleus by sciatic nerve primary afferents and development of cuneothalamic projection neurons with split receptive fields that included both the hindlimb and forelimb stump. Mapping in the primary somatosensory cortex of the neonatally manipulated adult rats demonstrated abnormalities, but the major change observed in the cuneate nucleus was demonstrable at only a few (5%) cortical recording sites in the remaining stump representation and there were none at all in the hindlimb representation. These results suggest that lesion-induced brainstem reorganization may be functionally suppressed at either the thalamic or cortical level.
Neuroscience & Biobehavioral Reviews, 2009
NeuroImage, 2008
The dorsal anterior cingulate cortex (dACC) is commonly thought to subserve primarily cognitive f... more The dorsal anterior cingulate cortex (dACC) is commonly thought to subserve primarily cognitive functions, but has been strongly implicated in the allocation of attention to emotional information. In a previous positron emission tomography (PET) study, we observed that women with higher emotional awareness as measured by the Levels of Emotional Awareness Scale (LEAS) showed greater changes in regional cerebral blood flow (rCBF) in dACC induced by emotional films and recall. In the current study, we tested whether these effects were due to the processing of any nonneutral stimulus, or were specific to conditions of high emotional arousal. Our results extend the previous finding by demonstrating a positive correlation between emotional awareness and dACC activity only in the context of viewing highly arousing pictures. No such relationship was observed when comparing pleasant or unpleasant pictures to neutral or to each other. We also observed that the relationship between LEAS and dACC activity was present in both sexes but stronger in women than men. These results reinforce the concept that greater trait awareness of one's own emotional experiences is associated with greater engagement of the dACC during emotional arousal, which we suggest may reflect greater attentional processing of emotional information.
Journal of Affective Disorders, 2000
In the present paper we present the outlines of a model that integrates autonomic, attentional, a... more In the present paper we present the outlines of a model that integrates autonomic, attentional, and affective systems into a functional and structural network that may help to guide us in our understanding of emotion regulation and dysregulation. We will emphasize the relationship between attentional regulation and affective processes and propose a group of underlying physiological systems that serve to integrate these functions in the service of self-regulation and adaptability of the organism. We will attempt to place this network in the context of dynamical systems models which involve feedback and feedforward circuits with special attention to negative feedback mechanisms, inhibitory processes, and their role in response selection. From a systems perspective, inhibitory processes can be viewed as negative feedback circuits that allow for the interruption of ongoing behavior and the re-deployment of resources to other tasks. When these negative feedback mechanisms are compromised, positive feedback loops may develop as a result (of dis-inhibition). From this perspective, the relative sympathetic activation seen in anxiety disorders may represent dis-inhibition due to faulty inhibitory mechanisms.
European Neuropsychopharmacology, 1995
Behavior Research Methods, 2010
Annals of Noninvasive Electrocardiology, 2009
We sought to determine whether the circumstances preceding an arrhythmic event differed from thos... more We sought to determine whether the circumstances preceding an arrhythmic event differed from those preceding a prior control occasion in patients with Long QT Syndrome (LQTS), a wellcharacterized genetic disorder that puts affected individuals at risk for sudden cardiac death.
American Journal of Psychiatry, 2003