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Articles 1 - 10 of 10
Full-Text Articles in Psychology
Cognitive And Psychiatric Predictors To Psychosis In Velocardiofacial Syndrome: A 3-Year Follow-Up Study, Kevin Antshel, Robert Shprintzen, Wanda Fremont, Anne Higgins, Stephen Faraone, Wendy Kates
Cognitive And Psychiatric Predictors To Psychosis In Velocardiofacial Syndrome: A 3-Year Follow-Up Study, Kevin Antshel, Robert Shprintzen, Wanda Fremont, Anne Higgins, Stephen Faraone, Wendy Kates
Robert J. Shprintzen
Objective: To predict prodromal psychosis in adolescents with velocardiofacial syndrome (VCFS). Method: 70 youth with VCFS, 27 siblings of youth with VCFS and 25 community controls were followed from childhood (Mean age = 11.8 years) into mid-adolescence (mean age 15.0 years). Psychological tests measuring intelligence, academic achievement, learning/memory, attention and executive functioning as well as measures of parent and clinician ratings of child psychiatric functioning were completed at both time point. Results: Major depressive disorder, oppositional defiant disorder, and generalized anxiety disorder diagnoses increased in the VCFS sample. With very low false positive rates, the best predictor of adolescent prodromal …
Response To Susilo And Duchaine: Beyond Neuropsychological Dissociations In Understanding Face And Word Representations., David Plaut, Marlene Behrmann
Response To Susilo And Duchaine: Beyond Neuropsychological Dissociations In Understanding Face And Word Representations., David Plaut, Marlene Behrmann
Marlene Behrmann
No abstract provided.
Does Physical Activity Influence Semantic Memory Activation In Amnestic Mild Cognitive Impairment?, J. Smith, Kristy Nielson, John Woodard, Michael Seidenberg, Matthew Verber, Sally Durgerian, Piero Antuono, Alissa Butts, Nathan Hantke, Melissa Lancaster, Stephen Rao
Does Physical Activity Influence Semantic Memory Activation In Amnestic Mild Cognitive Impairment?, J. Smith, Kristy Nielson, John Woodard, Michael Seidenberg, Matthew Verber, Sally Durgerian, Piero Antuono, Alissa Butts, Nathan Hantke, Melissa Lancaster, Stephen Rao
Kristy Nielson
The effect of physical activity (PA) on functional brain activation for semantic memory in amnestic mild cognitive impairment (aMCI) was examined using event-related functional magnetic resonance imaging during fame discrimination. Significantly greater semantic memory activation occurred in the left caudate of High- versus Low-PA patients, (P=0.03), suggesting PA may enhance memory-related caudate activation in aMCI.
Maritime Traffic Management: A Need For Central Coordination?, Fulko Van Westrenen, Gesa Praetorius
Maritime Traffic Management: A Need For Central Coordination?, Fulko Van Westrenen, Gesa Praetorius
Gesa Praetorius
Traffic management is not formally organised in the maritime domain. Ships are autonomous and find their own way. Traffic is organised through rules, regulations, and “good seamanship”; it is a distributed system. In areas of high traffic-density support is proved by vessel traffic service (VTS) to promote traffic safety and fluency. VTS does not take control. This organisational structure has proven itself in situations with sufficient resources. When resources become insufficient (e.g. not enough sailing space), the traffic needs an organising mechanism. In this article, the authors argue that the most promising way to do this is by organising centralised …
Integration Of Speed Signals In The Direction Of Motion, Dawn Vreven, Preeti Verghese
Integration Of Speed Signals In The Direction Of Motion, Dawn Vreven, Preeti Verghese
Dawn L Vreven
Speed discrimination tasks were used to examine the spatial and temporal characteristics of the integration mechanism involved when signals are extended in the direction of motion. We varied the aspect ratio of a signal patch whose speed differed from the background, while holding the area of the signal patch constant, so that the signal patch could be either extended in the direction of motion or extended orthogonal to the direction of motion. Speed discrimination thresholds decreased dramatically as the signal patch was extended in the direction of motion. The spatial and temporal integration regions were larger than would be expected …
Detecting Structure In Glass Patterns: An Interocular Transfer Study, Dawn Vreven, Jarrod Berge
Detecting Structure In Glass Patterns: An Interocular Transfer Study, Dawn Vreven, Jarrod Berge
Dawn L Vreven
Glass patterns are visual stimuli used here to study how local orientation signals are spatially integrated into global pattern perception. We measured a form aftereffect from adaptation to both static and dynamic Glass patterns and calculated the amount of interocular transfer to determine the binocularity of the detectors responsible for the perception of global structure. Both static and dynamic adaptation produced significant form aftereffects and showed a very high degree of interocular transfer, suggesting that Glass-pattern perception involves cortical processing beyond primary visual cortex. Surprisingly, dynamic adaptation produced significantly greater interocular transfer than static adaptation. Our results suggest a functional …
Improving Awareness Of Vulnerabilities To Ethical Challenges: A Family Systems Approach, Cecile Brennan, Jennifer Eulberg, Paula Britton
Improving Awareness Of Vulnerabilities To Ethical Challenges: A Family Systems Approach, Cecile Brennan, Jennifer Eulberg, Paula Britton
Cecile Brennan
Current ethical decision-making models focus principally on cognitive factors and less on the emotional aspects of ethical challenges. This practice reflects a reliance on knowledge-driven, modernist approaches that emphasize objectivity and the primacy of rational thinking. Newer postmodern and constructivist approaches emphasize the need to consider the counselor holistically, as a thinking/feeling being who brings into the present moment the accumulated weight of the past. In order to bridge the gap between a cognitive, modernist approach and a feeling, experience-based postmodern approach, the authors outline an instructional approach that uses family systems theory to assist counselors in becoming conscious about …
Impaired Perceptual Judgement At Low Blood Alcohol Concentrations, Tim Friedman, S Robinson, G Yelland
Impaired Perceptual Judgement At Low Blood Alcohol Concentrations, Tim Friedman, S Robinson, G Yelland
Dr Tim Friedman
Males and females show different patterns of cognitive impairment when blood alcohol concentrations (BACs) are high. To investigate whether gender differences persist at low BACs, cognitive impairment was tested in 21 participants (11 female, 10 male) using a brief computerized perceptual judgment task that provides error rate and response time data. Participants consumed a measured dose of alcohol (average peak BAC: females: 0.052 g/100 mL, males: 0.055 g/100 mL), and were tested at four time points spanning both the rising and falling limbs of the BAC curve, in addition to a prealcohol time point. Comparisons were made against performance of …
On The Number Of Trials Necessary For Stabilization Of Error-Related Brain Activity Across The Life Span, Jason Themanson, Matthew Pontifex, Mark Scudder, Michael Brown, Kevin O'Leary, Chien-Ting Wu, Charles Hillman
On The Number Of Trials Necessary For Stabilization Of Error-Related Brain Activity Across The Life Span, Jason Themanson, Matthew Pontifex, Mark Scudder, Michael Brown, Kevin O'Leary, Chien-Ting Wu, Charles Hillman
Jason R. Themanson, Ph.D
The minimum number of trials necessary to accurately characterize the error-related negativity (ERN) and the error positivity (Pe) across the life span was investigated using samples of preadolescent children, college-age young adults, and older adults. Event-related potentials and task performance were subsequently measured during a modified flanker task. Response-locked averages were created using sequentially increasing errors of commission in blocks of two. Findings indicated that across all age cohorts ERN and Pe were not significantly different relative to the within-participants grand average after six trials. Further, results indicated that the ERN and Pe exhibited excellent internal reliability in preadolescent children …
Brain Nerve Conduction Velocity Is A Valid And Useful Construct For Studying Human Cognitive Abilities: A Reply To Saint-Amour Et Al, Andrew Johnson, T. Reed, Philip Vernon
Brain Nerve Conduction Velocity Is A Valid And Useful Construct For Studying Human Cognitive Abilities: A Reply To Saint-Amour Et Al, Andrew Johnson, T. Reed, Philip Vernon
Andrew M. Johnson
No abstract provided.