John Shelley-Tremblay | University of South Alabama (original) (raw)

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Papers by John Shelley-Tremblay

Research paper thumbnail of Postural Sway is Affected by Visually Perceived Geographical Slant

Research paper thumbnail of University of South Alabama Associate Professor of Psychology

CV

Launched Industrial-Organizational Psychology Minor in collaboration with Mitchell College of Bus... more Launched Industrial-Organizational Psychology Minor in collaboration with Mitchell College of Business. Launched Diversity, Equity and Inclusion Committee creating welcoming space for transformation of the department. Successfully recruited diverse faculty. Redesigned the curriculum and re-ignited the MS in Brain and Behavioral Science program. Launched 4+1 Accelerated Masters Program and Early Acceptance Program for M.S. Program Lead a partnership with the Alabama Advanced Imaging Consortium to bring courses, training, and lectures from around the state to our graduate students.

Research paper thumbnail of Simulated Handgun Shooting

This project used a WII simulated handgun to have participants shoot at a virtual target in a lab... more This project used a WII simulated handgun to have participants shoot at a virtual target in a laboratory environment. We investigated the effect of prior handgun experience and social inhibition on performance and EEG activity.

Research paper thumbnail of Editorial: Visual Timing Impairments in Developmental, Acquired, and Age-Related Neurological Conditions

Frontiers in Human Neuroscience

Research paper thumbnail of Measuring the influence of phonological neighborhood on visual word recognition with the N400: Evidence for semantic scaffolding

Research paper thumbnail of Anxiety Explains Self-Differentiation: Implications for Bowenian Approaches to Marriage and Family Therapy

The American Journal of Family Therapy

Research paper thumbnail of Electroencephalographic Investigation of the Effect of Skill Level and Social Inhibition on Simulated Handgun Shooting

Journal of Motor Behavior

Research paper thumbnail of Corrigendum: Training on Movement Figure-Ground Discrimination Remediates Low-Level Visual Timing Deficits in the Dorsal Stream, Improving High-Level Cognitive Functioning, Including Attention, Reading Fluency, and Working Memory

Frontiers in Human Neuroscience

In the original article, there was a mistake in Figure 1 as published. The contrast of the figure... more In the original article, there was a mistake in Figure 1 as published. The contrast of the figures was too low to be resolved. The corrected Figure 1 appears below. The authors apologize for this error and state that this does not change the scientific conclusions of the article in any way. The original article has been updated. Conflict of Interest Statement: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.

Research paper thumbnail of Training on Movement Figure-Ground Discrimination Remediates Low-Level Visual Timing Deficits in the Dorsal Stream, Improving High-Level Cognitive Functioning, Including Attention, Reading Fluency, and Working Memory

Frontiers in Human Neuroscience

Timing Improves Attention, Reading, Memory reading acquisition and working memory. This study sup... more Timing Improves Attention, Reading, Memory reading acquisition and working memory. This study supports the hypothesis that faulty timing in synchronizing the activity of magnocellular with parvocellular visual pathways in the dorsal stream is a fundamental cause of dyslexia and being at-risk for reading problems in normal students, and argues against the assumption that reading deficiencies in dyslexia are caused by phonological or language deficits, requiring a paradigm shift from phonologically-based treatment of dyslexia to a visually-based treatment. This study shows that visual movement-discrimination can be used not only to diagnose dyslexia early, but also for its successful treatment, so that reading problems do not prevent children from readily learning.

Research paper thumbnail of Explaining Fibrofog: Carbohydrate Cravings Explain More Than Pain and Negative Mood Alone

Research paper thumbnail of Breakdown of Semantics in Aphasia and Dementia

Perspectives in Communication Disorders, 2000

Research paper thumbnail of Optical Push by Geographical Slant Affects Postural Sway

Ecological Psychology, 2014

ABSTRACT This study shows that perceived geographical slant affects postural stability. In 2 expe... more ABSTRACT This study shows that perceived geographical slant affects postural stability. In 2 experimental conditions participants stood on a force platform that measured center of pressure (COP) during quiet stance while looking at a rigid, flat ramp surface of varying geographical slants. Using an otherwise identical procedure, participants in the second condition also provided verbal estimates of the steepness of the surface in degrees. Several measures of postural stability offered converging evidence that COP sway gradually increased as geographical slant decreased to 0 (horizontal ground). Specifically, COP was sensitive to changes in surface slant. Both the range and the standard deviation of COP showed the same trend of increased variability with decreasing geographical slant angles in both conditions. The area of the ellipse covering COP sway (based on a principal components analysis) showed the same tendency: ellipse area got larger for smaller, more horizontal slants. Nonlinear fractal dynamics of COP sway, as measured by the Hurst exponent of COP, pointed in the same direction: more fractal patterns, known to be correlated with increased muscle activity and decline in postural stability, were measured for shallower surface slants. There were no effects of verbal estimates on any of the measures, suggesting that explicit awareness of slant does not bias postural stability above and beyond the effects of visual environment.

Research paper thumbnail of Electroencephalogram (EEG)

Encyclopedia of Human Development, 2005

Research paper thumbnail of Vestibular Function, Sensory Integration, and Balance Anomalies: A Brief Literature Review

The essence of this paper is to review selective research articles that relate to vestibular func... more The essence of this paper is to review selective research articles that relate to vestibular functioning, sensory integration, and balance anomalies in children and adults. Studies that involve the role of the optometrist have been quite sparse. Special effort is made to distinguish between developmental and acquired brain injuries (ABI). While the former often are traced to pre-, peri- and postnatal disorders, traumatic brain injuries are the consequence of sports, motor vehicular and industrial accidents. Delayed vestibular maturation correlates signifi cantly with sensory integration dysfunctions, slow vision processing, impaired hearing, and reading disability. Because of overlap in cortical systems, uncorrected vestibular disorders may affect attention processes and result in cognitive dysfunctions. The clinical value of several therapeutic procedures is discussed in the context of controlled studies. Successful rehabilitation may require treatment for vestibular and visual sys...

Research paper thumbnail of Psychopathy, reactive aggression, and precarious proclamations: A review of behavioral, cognitive, and biological research

Aggression and Violent Behavior, 2011

Psychopathic personality (psychopathy) is associated with a heightened risk for physical aggressi... more Psychopathic personality (psychopathy) is associated with a heightened risk for physical aggression, although the nature of this link remains unclear. Despite widespread claims that psychopathy is associated with reactive aggression, the evidence for this assertion is mixed. We provide a comprehensive review of behavioral, cognitive, and biological research on the relation between psychopathy and aggression, and conclude that although psychopathy is clearly associated with instrumental aggression, its association with reactive aggression is not robust. In fact, at least some research points to a potential protective role of psychopathy against reactive aggression. We conclude that future research must clarify the differential implications of the separable components of the broad psychopathy construct before the relations between psychopathy and physical aggression can be adequately understood.

Research paper thumbnail of Vestibular Function, Sensory Integration, and Balance Anomalies: A Brief Literature Review

OPTOMETRY AND VISION DEVELOPMENT, 2007

The essence of this paper is to review selective research articles that relate to vestibular func... more The essence of this paper is to review selective research articles that relate to vestibular functioning, sensory integration, and balance anomalies in children and adults. Studies that involve the role of the optometrist have been quite sparse. Special effort is made to distinguish between developmental and acquired brain injuries (ABI). While the former often are traced to pre-, peri-and postnatal disorders, traumatic brain injuries are the consequence of sports, motor vehicular and industrial accidents. Delayed vestibular ...

Research paper thumbnail of Reading Problems, Attentional Deficits, and Current Mental Health Status in Adjudicated Adolescent Males

Journal of Correctional Education, 2007

Abstract: This study examined the prevalence of reading problems and self-reported symptoms of at... more Abstract: This study examined the prevalence of reading problems and self-reported symptoms of attentional deficits in a sample of adjudicated adolescent males (N= 101) aged 12 to 18 years who were residing in an alternative sentencing residential program. Thirty-four percent of the youth had reading problems while only 9% of the boys had self-reported attentional deficits. An additional 10% of the youth reported experiencing both reading problems and attentional difficulties. Results indicated that male offenders with attentional ...

Research paper thumbnail of Carbohydrates uniquely predict cognitive deficit in fibromyalgia

Research paper thumbnail of Metacontrast masking is influenced by stimulus meaning

Research paper thumbnail of Regular Exercise Adoption: Evaluating Psychosocial Factors Influencing College Students

Research paper thumbnail of Postural Sway is Affected by Visually Perceived Geographical Slant

Research paper thumbnail of University of South Alabama Associate Professor of Psychology

CV

Launched Industrial-Organizational Psychology Minor in collaboration with Mitchell College of Bus... more Launched Industrial-Organizational Psychology Minor in collaboration with Mitchell College of Business. Launched Diversity, Equity and Inclusion Committee creating welcoming space for transformation of the department. Successfully recruited diverse faculty. Redesigned the curriculum and re-ignited the MS in Brain and Behavioral Science program. Launched 4+1 Accelerated Masters Program and Early Acceptance Program for M.S. Program Lead a partnership with the Alabama Advanced Imaging Consortium to bring courses, training, and lectures from around the state to our graduate students.

Research paper thumbnail of Simulated Handgun Shooting

This project used a WII simulated handgun to have participants shoot at a virtual target in a lab... more This project used a WII simulated handgun to have participants shoot at a virtual target in a laboratory environment. We investigated the effect of prior handgun experience and social inhibition on performance and EEG activity.

Research paper thumbnail of Editorial: Visual Timing Impairments in Developmental, Acquired, and Age-Related Neurological Conditions

Frontiers in Human Neuroscience

Research paper thumbnail of Measuring the influence of phonological neighborhood on visual word recognition with the N400: Evidence for semantic scaffolding

Research paper thumbnail of Anxiety Explains Self-Differentiation: Implications for Bowenian Approaches to Marriage and Family Therapy

The American Journal of Family Therapy

Research paper thumbnail of Electroencephalographic Investigation of the Effect of Skill Level and Social Inhibition on Simulated Handgun Shooting

Journal of Motor Behavior

Research paper thumbnail of Corrigendum: Training on Movement Figure-Ground Discrimination Remediates Low-Level Visual Timing Deficits in the Dorsal Stream, Improving High-Level Cognitive Functioning, Including Attention, Reading Fluency, and Working Memory

Frontiers in Human Neuroscience

In the original article, there was a mistake in Figure 1 as published. The contrast of the figure... more In the original article, there was a mistake in Figure 1 as published. The contrast of the figures was too low to be resolved. The corrected Figure 1 appears below. The authors apologize for this error and state that this does not change the scientific conclusions of the article in any way. The original article has been updated. Conflict of Interest Statement: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.

Research paper thumbnail of Training on Movement Figure-Ground Discrimination Remediates Low-Level Visual Timing Deficits in the Dorsal Stream, Improving High-Level Cognitive Functioning, Including Attention, Reading Fluency, and Working Memory

Frontiers in Human Neuroscience

Timing Improves Attention, Reading, Memory reading acquisition and working memory. This study sup... more Timing Improves Attention, Reading, Memory reading acquisition and working memory. This study supports the hypothesis that faulty timing in synchronizing the activity of magnocellular with parvocellular visual pathways in the dorsal stream is a fundamental cause of dyslexia and being at-risk for reading problems in normal students, and argues against the assumption that reading deficiencies in dyslexia are caused by phonological or language deficits, requiring a paradigm shift from phonologically-based treatment of dyslexia to a visually-based treatment. This study shows that visual movement-discrimination can be used not only to diagnose dyslexia early, but also for its successful treatment, so that reading problems do not prevent children from readily learning.

Research paper thumbnail of Explaining Fibrofog: Carbohydrate Cravings Explain More Than Pain and Negative Mood Alone

Research paper thumbnail of Breakdown of Semantics in Aphasia and Dementia

Perspectives in Communication Disorders, 2000

Research paper thumbnail of Optical Push by Geographical Slant Affects Postural Sway

Ecological Psychology, 2014

ABSTRACT This study shows that perceived geographical slant affects postural stability. In 2 expe... more ABSTRACT This study shows that perceived geographical slant affects postural stability. In 2 experimental conditions participants stood on a force platform that measured center of pressure (COP) during quiet stance while looking at a rigid, flat ramp surface of varying geographical slants. Using an otherwise identical procedure, participants in the second condition also provided verbal estimates of the steepness of the surface in degrees. Several measures of postural stability offered converging evidence that COP sway gradually increased as geographical slant decreased to 0 (horizontal ground). Specifically, COP was sensitive to changes in surface slant. Both the range and the standard deviation of COP showed the same trend of increased variability with decreasing geographical slant angles in both conditions. The area of the ellipse covering COP sway (based on a principal components analysis) showed the same tendency: ellipse area got larger for smaller, more horizontal slants. Nonlinear fractal dynamics of COP sway, as measured by the Hurst exponent of COP, pointed in the same direction: more fractal patterns, known to be correlated with increased muscle activity and decline in postural stability, were measured for shallower surface slants. There were no effects of verbal estimates on any of the measures, suggesting that explicit awareness of slant does not bias postural stability above and beyond the effects of visual environment.

Research paper thumbnail of Electroencephalogram (EEG)

Encyclopedia of Human Development, 2005

Research paper thumbnail of Vestibular Function, Sensory Integration, and Balance Anomalies: A Brief Literature Review

The essence of this paper is to review selective research articles that relate to vestibular func... more The essence of this paper is to review selective research articles that relate to vestibular functioning, sensory integration, and balance anomalies in children and adults. Studies that involve the role of the optometrist have been quite sparse. Special effort is made to distinguish between developmental and acquired brain injuries (ABI). While the former often are traced to pre-, peri- and postnatal disorders, traumatic brain injuries are the consequence of sports, motor vehicular and industrial accidents. Delayed vestibular maturation correlates signifi cantly with sensory integration dysfunctions, slow vision processing, impaired hearing, and reading disability. Because of overlap in cortical systems, uncorrected vestibular disorders may affect attention processes and result in cognitive dysfunctions. The clinical value of several therapeutic procedures is discussed in the context of controlled studies. Successful rehabilitation may require treatment for vestibular and visual sys...

Research paper thumbnail of Psychopathy, reactive aggression, and precarious proclamations: A review of behavioral, cognitive, and biological research

Aggression and Violent Behavior, 2011

Psychopathic personality (psychopathy) is associated with a heightened risk for physical aggressi... more Psychopathic personality (psychopathy) is associated with a heightened risk for physical aggression, although the nature of this link remains unclear. Despite widespread claims that psychopathy is associated with reactive aggression, the evidence for this assertion is mixed. We provide a comprehensive review of behavioral, cognitive, and biological research on the relation between psychopathy and aggression, and conclude that although psychopathy is clearly associated with instrumental aggression, its association with reactive aggression is not robust. In fact, at least some research points to a potential protective role of psychopathy against reactive aggression. We conclude that future research must clarify the differential implications of the separable components of the broad psychopathy construct before the relations between psychopathy and physical aggression can be adequately understood.

Research paper thumbnail of Vestibular Function, Sensory Integration, and Balance Anomalies: A Brief Literature Review

OPTOMETRY AND VISION DEVELOPMENT, 2007

The essence of this paper is to review selective research articles that relate to vestibular func... more The essence of this paper is to review selective research articles that relate to vestibular functioning, sensory integration, and balance anomalies in children and adults. Studies that involve the role of the optometrist have been quite sparse. Special effort is made to distinguish between developmental and acquired brain injuries (ABI). While the former often are traced to pre-, peri-and postnatal disorders, traumatic brain injuries are the consequence of sports, motor vehicular and industrial accidents. Delayed vestibular ...

Research paper thumbnail of Reading Problems, Attentional Deficits, and Current Mental Health Status in Adjudicated Adolescent Males

Journal of Correctional Education, 2007

Abstract: This study examined the prevalence of reading problems and self-reported symptoms of at... more Abstract: This study examined the prevalence of reading problems and self-reported symptoms of attentional deficits in a sample of adjudicated adolescent males (N= 101) aged 12 to 18 years who were residing in an alternative sentencing residential program. Thirty-four percent of the youth had reading problems while only 9% of the boys had self-reported attentional deficits. An additional 10% of the youth reported experiencing both reading problems and attentional difficulties. Results indicated that male offenders with attentional ...

Research paper thumbnail of Carbohydrates uniquely predict cognitive deficit in fibromyalgia

Research paper thumbnail of Metacontrast masking is influenced by stimulus meaning

Research paper thumbnail of Regular Exercise Adoption: Evaluating Psychosocial Factors Influencing College Students