A5053566122- Neural and Behavioral Psychology Studies
- Visual perception and processing mechanisms
- Spatial Neglect and Hemispheric Dysfunction
- Neural dynamics and brain function
- Functional Brain Connectivity Studies
- Action Observation and Synchronization
- Nicotinic Acetylcholine Receptors Study
- Neurobiology of Language and Bilingualism
- Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes
- Hallucinations in medical conditions
- Spatial Cognition and Navigation
- EEG and Brain-Computer Interfaces
- Receptor Mechanisms and Signaling
- Ophthalmology and Visual Impairment Studies
- Memory and Neural Mechanisms
- Genetic Associations and Epidemiology
- Motor Control and Adaptation
- Musculoskeletal pain and rehabilitation
- Obsessive-Compulsive Spectrum Disorders
- Visual Attention and Saliency Detection
- Psychosomatic Disorders and Their Treatments
- Categorization, perception, and language
- Body Image and Dysmorphia Studies
- Autism Spectrum Disorder Research
- Dementia and Cognitive Impairment Research
École Polytechnique Fédérale de Lausanne
2015-2022
University of Waterloo
2012-2013
Despite well-established sex differences for cognition, audition, and somatosensation, few studies have investigated whether there are also in visual perception. We report the results of fifteen perceptual measures (such as acuity, backward masking, contrast detection threshold or motion detection) a cohort over 800 participants. On six tests, males significantly outperformed females. no test did females outperform males. Given this heterogeneity effects, it is unlikely that due to any...
The world's population is aging at an increasing rate. Even in the absence of neurodegenerative disorders, healthy affects perception and cognition. In context cognition, common factors are well established. Much less known about for vision. Here, we tested 92 older 104 younger participants 19 visual tests (including search contrast sensitivity) three cognitive verbal fluency digit span). Unsurprisingly, performed better than almost all tests. Surprisingly, however, performance was mostly...
Visual backward masking (VBM) deficits are candidate endophenotypes of schizophrenia indexing genetic liability the disorder. In VBM, a target is followed by mask that deteriorates perception. Schizophrenia patients and, to lesser extent, their unaffected relatives show strong and reproducible VBM deficits. patients, associated with strongly decreased amplitudes in evoked-related potentials (ERPs). Here, unveil neural mechanisms schizophrenia, circumventing illness-specific confounds, we...
We propose that neglect includes a disorder of representational updating. Representational updating refers to our ability build mental models and adapt those changing experience. This depends on the processes priming, working memory, statistical learning. These in turn interact with capabilities for sustained attention precise temporal processing. review evidence showing all these non-spatial abilities are impaired neglect, we discuss how recognition such deficits can lead novel approaches...
Statistical learning is a skill necessary for successful rehabilitation after stroke, as most techniques rely on retraining and relearning potentially lost functions. In order to examine how brain injury affects the ability learn update statistical representations, we had participants with left right injuries perform an auditory task. Participants listened two languages made-up words that were defined by transition probability between syllables. Following passive listening, was assessed...
Gender differences are well established in cognition and somato-sensation, but there almost no studies on gender visual perception. In vision experiments, sample size of participants is often small because effect sizes large. However, samples not suited to test for differences. Here, we pooled data from 4 resulting 1091 ranging age 14 90 years. We tested participants' performance vernier acuity, backward masking the Wisconsin Card Sorting Test. found any four tests younger (n=431; 14-30...
Nicotine consumption is higher for people within the schizophrenia spectrum compared to controls. This observation supports self-medication hypothesis, that nicotine relieves symptoms in, example, patients. We tested whether performance in an endophenotype of (visual backward masking, VBM) modulated by i) smoking and non-smoking patients, their first-degree relatives, age-matched controls, ii) university students, iii) non-smoking, early late onset smokers. Overall, our results confirmed VBM...
The developed world is aging faster than ever before. Even in the absence of neurodegenerative disease, affects all kinds human functions including perception and cognition. In most perceptual studies, one paradigm tested it usually found that older participants perform worse younger participants. Implicitly, these results are taken as evidence there factor for each individual determining his/her overall performance levels. Here, we show visual cognitive age differently. We 131 (mean 70...