A5075116178- Face Recognition and Perception
- Neural and Behavioral Psychology Studies
- Visual perception and processing mechanisms
- Neural dynamics and brain function
- EEG and Brain-Computer Interfaces
- Neurobiology of Language and Bilingualism
- Epilepsy research and treatment
- Spatial Neglect and Hemispheric Dysfunction
- Evolutionary Psychology and Human Behavior
- Functional Brain Connectivity Studies
- Multisensory perception and integration
- Spatial Cognition and Navigation
- Hemispheric Asymmetry in Neuroscience
- Action Observation and Synchronization
- Reading and Literacy Development
- Memory and Neural Mechanisms
- Visual Attention and Saliency Detection
- Child and Animal Learning Development
- Neuroscience and Neuropharmacology Research
- Olfactory and Sensory Function Studies
- Motor Control and Adaptation
- Psychosomatic Disorders and Their Treatments
- Neurological disorders and treatments
- Musculoskeletal pain and rehabilitation
- Pharmacological Effects and Toxicity Studies
The University of Queensland
2016-2025
Allen Institute for Brain Science
2023
Icahn School of Medicine at Mount Sinai
2023
Massachusetts General Hospital
2022
University Hospital of Geneva
2009-2021
University of Geneva
2010-2019
Bangor University
2004-2017
Hologic (Germany)
2017
Geneva College
1994-2015
Hôpital Beau-Séjour
1995-2010
Language selection (or control) refers to the cognitive mechanism that controls which language use at a given moment and context. It allows bilinguals selectively communicate in one target while minimizing interferences from nontarget language. Previous studies have suggested participation control of different brain areas. However, question remains whether among others relies on language-specific neural module or general executive regions also allow switching between competing behavioral...
Abstract Assessing inter‐individual variability of functional activations is practical importance in the use magnetic resonance imaging (fMRI) a clinical context. In this fMRI study we addressed issue 30 right‐handed, healthy subjects using rhyme detection (phonologic) and semantic categorization tasks. Significant activations, found mainly left hemisphere, concerned inferior frontal gyrus, superior/middle temporal gyri, prefrontal cortex, parietal lobe, superior lobule/superior occipital...
Cortical blindness refers to the loss of vision that occurs after destruction primary visual cortex. Although there is no sensory cortex and hence conscious vision, some cortically blind patients show amygdala activation in response facial or bodily expressions emotion. Here we investigated whether direction gaze could also be processed absence any functional A well-known patient with bilateral his subsequent cortical was an fMRI paradigm during which blocks faces were presented either their...
The human face is the most studied object category in visual neuroscience. In a quest for markers of processing, event-related potential (ERP) studies have debated whether two peaks activity - P1 and N170 are category-selective. Whilst used photographs unaltered images faces, others cropped faces an attempt to reduce influence features surrounding "face-object" sensu stricto. However, results from comparing with objects other categories inconsistent whole objects. Here, we recorded ERPs...
Abstract The effects of noradrenalin were tested upon electrophysiologically characterized cholinergic nucleus basalis neurons in guinea‐pig brain slices. According to their previously established intrinsic membrane properties, the cells distinguished by presence low‐threshold Ca 2+ spikes and transient outward rectification that endowed them with capacity fire bursts addition a slow tonic discharge. A subset identified responded had been filled biocytin (or biotinamide) documented published...
Evidence from functional brain imaging studies suggests that mental imagery processes, like other higher cognitive functions, simultaneously activate different neuronal networks involving multiple cortical areas. The question of whether these areas are truly active or they temporally distinct and might reflect steps information processing cannot be answered by methods. We applied spatiotemporal analysis techniques to multichannel event-related potential (ERP) recordings in order elucidate...
Non-conscious visual processing of different object categories was investigated in a rare patient with bilateral destruction the cortex (V1) and clinical blindness over entire field. Images biological non-biological were presented consisting human bodies, faces, butterflies, cars, scrambles. Behaviorally, only body shape induced higher perceptual sensitivity, as revealed by signal detection analysis. Passive exposure to bodies faces activated amygdala superior temporal sulcus. In addition,...
The amygdala is believed to make invaluable contributions visual emotion processing. Yet how this subcortical body contributes perception across time contended. Here, we measured differences in the perceptual processing of emotional stimuli after unilateral temporal lobe and resection (TLR) humans, using EEG. Through mass univariate analysis brain activity, compared responses fearful neutral faces (left TLR N = 8, right control 8), bodies 9, 9). We found that impaired early-stage seen group....
Abstract The study of unilateral spatial neglect has shown that space can be dissociated on a peripersonal versus extrapersonal basis. We report novel type dissociation based tool use in patient suffering from left neglect. Line bisection was carried out near and far space, using stick laser pointer. A rightward bias always found for the former, but not latter. Neglect thus appears to contingent only distance, also motor action required by task.
We studied time course and cerebral localisation of word, object, face recognition using event-related potentials (ERPs) source techniques. To compare activation rates these three categories, we used degraded images that easily pop out without any change in the physical features stimuli, once meaning is revealed. Comparisons before after identification show additional periods beginning at 100 msec for faces around 200 objects words. For faces, this occurs predominantly right temporal areas,...
A number of investigations have reported that emotional faces can be processed subliminally, and they give rise to specific patterns brain activation in the absence awareness. Recent event-related potential (ERP) studies suggested electrophysiological differences occur early time (<200 ms) response backward-masked faces. These findings been taken as evidence a rapid non-conscious pathway, which would allow threatening stimuli rapidly subsequently appropriate avoidance action taken. However,...