A5057190997- Neural and Behavioral Psychology Studies
- Attention Deficit Hyperactivity Disorder
- Neurotransmitter Receptor Influence on Behavior
- Face Recognition and Perception
- Functional Brain Connectivity Studies
- Autism Spectrum Disorder Research
- Parkinson's Disease Mechanisms and Treatments
- Gambling Behavior and Treatments
- Deception detection and forensic psychology
- Schizophrenia research and treatment
- Health Systems, Economic Evaluations, Quality of Life
- Neurological disorders and treatments
- Neuroscience and Music Perception
- Behavioral and Psychological Studies
- Pain Management and Placebo Effect
- Acupuncture Treatment Research Studies
- Multisensory perception and integration
- Face recognition and analysis
- Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes
- Treatment of Major Depression
- Immunodeficiency and Autoimmune Disorders
- Children's Physical and Motor Development
- Stress Responses and Cortisol
- Behavioral Health and Interventions
- Visual Attention and Saliency Detection
West Virginia University
2019-2025
University of British Columbia
2014-2024
Blanchette Rockefeller Neurosciences Institute
2023
Mekhanobr Appliances (Russia)
2021
Vancouver Coastal Health
2018
McGill University Health Centre
2012-2014
McGill University
2004-2013
Beth Israel Deaconess Medical Center
2001-2010
Harvard University
2002-2007
Massachusetts General Hospital
2007
Where we make ocular fixations when viewing an object likely reflects interactions between ‘external’ properties and internal ‘top - down’ factors, as our perceptual system tests hypotheses attempts to decisions about environment. These scanning fixation patterns can tell us how where the visual gathers information critical specific tasks. We determined effects of factors expertise, experience, ambiguity on during a face-recognition task, in eight subjects. To assess compared upright with...
Face imagery can access facial memories without the use of perceptual stimuli. Current data on relation to function and neuroanatomy prosopagnosic patients are mixed, little is known about type information through imagery.The authors wished determine 1) which lesions abolished face in prosopagnosia, 2) if deficits perceiving structure were paralleled by similar imagery, 3) covert recognition faces correlated with degree residual for faces.The tested nine who had been previously perception...
<i>Background:</i> Some patients with prosopagnosia have covert recognition, meaning that they retain some familiarity or knowledge of facial identity which are not aware. <i>Objective:</i>To test the hypothesis prosopagnosic right occipitotemporal lesions and impaired face perception lack processing, whereas associative bilateral anterior temporal possess it. <i>Methods:</i> Eight were tested a battery four recognition tests to determine their ability discriminate between famous unknown...
It has been hypothesized that social developmental disorders (SDD) like autism, Asperger's disorder and the social-emotional processing may be associated with prosopagnosic-like deficits in face recognition. We studied ability to recognize famous faces 24 adults a variety of SDD diagnoses. also measured their discriminate changes internal facial configuration, perceptual function is important recognition, imagery for faces, an index memory stores. contrasted performance both healthy subjects...
ABSTRACT Background The benefits of exercise in PD have been linked to enhanced dopamine (DA) transmission the striatum. Objective To examine differences DA release, reward signaling, and clinical features between habitual exercisers sedentary subjects with PD. Methods Eight 9 completed [ 11 C]raclopride PET scans before after stationary cycling determine exercise‐induced release endogenous dorsal Additionally, functional MRI assessed ventral striatum activation during anticipation. All...
Reward-related stimuli can potently influence behavior; for example, exposure to drug-paired cues trigger drug use and relapse in people with addictions. Psychological mechanisms that generate such outcomes likely include cue-induced cravings attentional biases. Recent animal data suggest another candidate mechanism: reward-paired enhance risky decision making, yet whether this translates humans is unknown. Here, we examined sensory alter making under uncertainty risk, as measured...
Abstract Background and Aims Immersion during slot machine gambling has been linked to disordered gambling. Current conceptualizations of immersion (namely dissociation, flow the zone) make contrasting predictions as whether gamblers are captivated by game per se (‘zoned in’) or motivated escape that provides out’). We examined selected eye‐movement metrics can distinguish between these predictions. Design Setting Pre‐registered, correlational analysis in a laboratory setting. Participants...
Objective: Recent trials have demonstrated efficacy of cognitive behavioral therapy (CBT) in medicated adults with ADHD. Efficacy CBT unmedicated versus remains mostly unknown. We evaluated the effects group alone combined medication on ADHD symptoms and functional outcomes adult patients. Method: Eighty-eight received 12 manualized sessions, accompanied by individual coaching, either without ( n = 46) or 42) medication. Treatment were following treatment 3-month 6-month follow-up using...
Some patients with prosopagnosia may have an apperceptive basis to their recognition defect. Perceptual abnormalities been reported in single cases or small series, but the causal link of such deficits is unclear. Our goal was identify candidate perceptual processes that might contribute prosopagnosia, by subjecting several prosopagnosic a battery functions be necessary for accurate facial perception. We tested seven patients. Three had unilateral right occipitotemporal lesions, two...
The meso-striatal dopamine system influences responses to rewards and the motivation seek them out. Marked individual differences in these are seen laboratory animals, related part input from prefrontal cortex. Here we measured relation between cortical morphology drug-induced striatal release healthy young people. Participants were 24 (17 male, 7 female; age 23.0 ± 6.2 years) stimulant drug-naive subjects who underwent PET [(11)C]raclopride scans with 0.3 mg/kg d-amphetamine orally placebo,...
A bstract : Executive functions allow us to respond flexibly rather than stereotypically the environment. We examined two such functions, task switching and inhibition in antisaccade paradigm, studies. One study involved 18 normal subjects; other, 21 schizophrenic patients 16 age‐matched controls. Subjects performed blocks of randomly mixed prosaccades antisaccades. Repeated trials were preceded by same type trial (i.e., an following antisaccade), switched a opposite type. measured accuracy...
<b>Background: </b> Patients with social developmental disorders (SDD), also known as autism spectrum disorders, may have impaired recognition of facial identity or expressions. <b>Objective: Our goal was to determine whether SDDs were characterized by loss a perceptual mechanism responsible for face expertise, current theories suggest that such should be selective upright faces, disproportionately affect the perception configuration, and possibly more severe in eye region. <b>Method: We...