A5074881456- Visual perception and processing mechanisms
- Neural dynamics and brain function
- Neural and Behavioral Psychology Studies
- Functional Brain Connectivity Studies
- Genetic Neurodegenerative Diseases
- Face Recognition and Perception
- Advanced Neuroimaging Techniques and Applications
- Neurological disorders and treatments
- EEG and Brain-Computer Interfaces
- Multisensory perception and integration
- Advanced MRI Techniques and Applications
- Spatial Neglect and Hemispheric Dysfunction
- Memory and Neural Mechanisms
- Action Observation and Synchronization
- Autism Spectrum Disorder Research
- Retinal Development and Disorders
- Neuroscience and Music Perception
- Parkinson's Disease Mechanisms and Treatments
- Visual Attention and Saliency Detection
- Mitochondrial Function and Pathology
- Olfactory and Sensory Function Studies
- Neuroscience, Education and Cognitive Function
- Machine Learning in Healthcare
- Evolutionary Psychology and Human Behavior
- Color perception and design
University College London
2016-2025
Wellcome Centre for Human Neuroimaging
2015-2024
National Hospital for Neurology and Neurosurgery
2015-2024
Institut des Sciences Cognitives Marc Jeannerod
2010-2024
University College Lahore
2016-2024
University of Auckland
2023
University of Cambridge
2022
Faculty (United Kingdom)
2016-2021
Huntington's Disease Association
2018-2021
The Ohio State University
2020
The hypothesis that working memory is crucial for reducing distraction by maintaining the prioritization of relevant information was tested in neuroimaging and psychological experiments with humans. Participants performed a selective attention task required them to ignore distractor faces while holding sequence digits were same order (low load) or different (high on every trial. Higher load, associated increased prefrontal activity, resulted greater interference effects behavioral...
The ability to introspect about self-performance is key human subjective experience, but the neuroanatomical basis of this unknown. Such accurate introspection requires discriminating correct decisions from incorrect ones, a capacity that varies substantially across individuals. We dissociated variation in introspective objective performance simple perceptual-decision task, allowing us determine whether interindividual variability was associated with distinct neural basis. show correlated...
When dissimilar images are presented to the two eyes, perception alternates spontaneously between each monocular view, a phenomenon called binocular rivalry. Functional brain imaging in humans was used study neural basis of these subjective perceptual changes. Cortical regions whose activity reflected transitions included extrastriate areas ventral visual pathway, and parietal frontal that have been implicated spatial attention; whereas were also engaged by nonrivalrous changes,...
In everyday life, many people believe that two heads are better than one. Our ability to solve problems together appears be fundamental the current dominance and future survival of human species. But really one? We addressed this question in context a collective low-level perceptual decision-making task. For observers nearly equal visual sensitivity, were definitely one, provided they given opportunity communicate freely, even absence any feedback about decision outcomes. for with very...
Abstract This paper presents an approach to characterizing evoked hemodynamic responses in fMRI based on nonlinear system identification, particular the use of Volterra series. The employed enables one estimate kernels that describe relationship between stimulus presentation and ensue. series are essentially high‐order extensions linear convolution or “smoothing.” These kernels, therefore, represent a characterization response function can model stimuli different contexts (in this work,...
Lavie's theory of attention proposes that the processing load in a relevant task determines extent to which irrelevant distractors are processed. This was tested by asking participants study perform linguistic tasks low or high while ignoring visual motion periphery display. Although and distractor were unrelated, both functional imaging motion-related activity cortical area V5 psychophysical measures aftereffect showed reduced during task. These findings fulfill prediction perception...
Autism is a neurodevelopmental disorder characterised by problems with social-communication, restricted interests and repetitive behaviour. A recent controversial article presented compelling normative explanation for the perceptual symptoms of autism in terms failure Bayesian inference (Pellicano Burr, 2012). In response, we suggested that when interference grounded its neural instantiation – namely, predictive coding many features autistic perception can be attributed to aberrant precision...
The functions of the resting state networks (RSNs) revealed by functional MRI remain unclear, but it has seemed possible that emerge in parallel with development related cognitive functions. We tested alternative hypothesis: full repertoire dynamics emerges during period rapid neural growth before normal time birth at term (around 40 wk gestation). used a series independent analytical techniques to map detail different 70 infants born between 29 and 43 postmenstrual age (PMA). characterized...
Substantial differences exist in the cognitive styles of liberals and conservatives on psychological measures [1Jost J.T. Glaser J. Kruglanski A.W. Sulloway F.J. Political conservatism as motivated social cognition.Psychol. Bull. 2003; 129: 339-375Crossref PubMed Scopus (3032) Google Scholar]. Variability political attitudes reflects genetic influences their interaction with environmental factors [2Alford Funk C. Hibbing Are orientations genetically transmitted?.Am. Polit. Sci. Rev. 2005;...
Highlights•Peak α frequency predicts temporal windows of the double-flash illusion•tACS tuned around causally modulates this illusory window•Slower versus faster tACS frequencies enlarged shrunk window•α peak is "fingerprint" driving crossmodal impact upon visual processingSummaryPerception routinely integrates inputs from different senses. Stimulus proximity critically determines whether or not these are bound together. Despite window integration being a widely accepted notion, its...