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Articles 1 - 25 of 25
Full-Text Articles in Life Sciences
Probabilistic Atlases For Face And Biological Motion Perception: An Analysis Of Their Reliability And Overlap, Andrew Engell
Probabilistic Atlases For Face And Biological Motion Perception: An Analysis Of Their Reliability And Overlap, Andrew Engell
Andrew Engell
Neuroimaging research has identified several category-selective regions in visual cortex that respond most strongly when viewing an exemplar image from a preferred category, such as faces. Recent studies, however, have suggested a more complex pattern of activation that has been heretofore unrecognized, e.g., the presence of additional patches of activation to faces beyond the well-studied fusiform face area, and the activation of ostensible face selective regions by animate motion of non-biological forms. Here, we characterize the spatial pattern of brain activity evoked by viewing faces or biological motion in large fMRI samples (N > 120). We create probabilistic atlases for both …
Common Neural Mechanisms For The Evaluation Of Facial Trustworthiness And Emotional Expressions As Revealed By Behavioral Adaptation, Andrew Engell
Common Neural Mechanisms For The Evaluation Of Facial Trustworthiness And Emotional Expressions As Revealed By Behavioral Adaptation, Andrew Engell
Andrew Engell
People rapidly and automatically evaluate faces along many social dimensions. Here,we focus on judgments of trustworthiness, which approximate basic valence evaluation of faces, and test whether these judgments are an overgeneralization of the perception of emotional expressions. We used a behavioral adaptation paradigm to investigate whether the previously noted perceptual similarities between trustworthiness and emotional expressions of anger and happiness extend to their underlying neural representations. We found that adapting to angry or happy facial expressions causes trustworthiness evaluations of subsequently rated neutral faces to increase or decrease, respectively. Further, we found no such modulation of trustworthiness evaluations after participants …
Differential Activation Of Frontoparietal Attention Networks By Social And Symbolic Spatial Cues, Andrew Engell
Differential Activation Of Frontoparietal Attention Networks By Social And Symbolic Spatial Cues, Andrew Engell
Andrew Engell
Perception of both gaze-direction and symbolic directional cues (e.g. arrows) orient an observer’s attention toward the indicated location. It is unclear, however, whether these similar behavioral effects are examples of the same attentional phenomenon and, therefore, subserved by the same neural substrate. It has been proposed that gaze, given its evolutionary significance, constitutes a ‘special’ category of spatial cue. As such, it is predicted that the neural systems supporting spatial reorienting will be different for gaze than for non-biological symbols. We tested this prediction using functional magnetic resonance imaging to measure the brain’s response during target localization in which laterally …
The Fmri Bold Signal Tracks Electrophysiological Spectral Perturbations, Not Event-Related Potentials., Andrew Engell
The Fmri Bold Signal Tracks Electrophysiological Spectral Perturbations, Not Event-Related Potentials., Andrew Engell
Andrew Engell
Functional magnetic resonance imaging (fMRI) and electroencephalography (EEG) are primary tools of the psychological neurosciences. It is therefore important to understand the relationship between hemodynamic and electrophysiological responses. An early study by Huettel and colleagues found that the coupling of fMRI blood-oxygen-level-dependent signal (BOLD) and subdurally-recorded signal-averaged event-related potentials (ERPs) was not consistent across brain regions. Instead, a growing body of evidence now indicates that hemodynamic changes measured by fMRI reflect non-phase-locked changes in high frequency power rather than the phase-locked ERP. Here, we revisit the data from Huettel and colleagues and measure event-related spectral perturbations (ERSPs) to examine the …
Selective Attention Modulates Face-Specific Induced Gamma Oscillations Recorded From Ventral Occipitotemporal Cortex, Andrew Engell
Selective Attention Modulates Face-Specific Induced Gamma Oscillations Recorded From Ventral Occipitotemporal Cortex, Andrew Engell
Andrew Engell
EEG studies from subdural electrodes have demonstrated a face-specific event-related potential (face-N200) recorded from human ventral occipitotemporal cortex. The insensitivity of face-N200 to task manipulations has supported the proposal that face-N200 reflects an initial obligatory response to faces. This result stands in striking contrast to results of neuroimaging studies that have demonstrated strong task sensitivity of the fusiform hemodynamic response evoked by faces, and thus has created a paradox in the face perception literature. We recorded field potentials directly from the cortical surface of 16 patients while they selectively attended to faces or houses. Here we report that face-specific gamma …
Facial Expression And Gaze-Direction In Human Superior Temporal Sulcus, Andrew Engell
Facial Expression And Gaze-Direction In Human Superior Temporal Sulcus, Andrew Engell
Andrew Engell
The perception of facial expression and gaze-direction are important aspects of non-verbal communication. Expressions communicate the internal emotional state of others while gaze-direction offers clues to their attentional focus and future intentions. Cortical regions in the superior temporal sulcus(STS) play a central role in the perception of expression and gaze, but the extent to which the neural representations of these facial gestures are overlapping is unknown. In the current study 12 subjects observed neutral faces with direct-gaze, neutral faces with averted-gaze, or emotionally expressive faces with direct-gaze while we scanned their brains with functional magnetic resonance imaging (fMRI), allowing a …
Implicit Trustworthiness Decisions: Automatic Coding Of Face Properties In Human Amygdala, Andrew Engell
Implicit Trustworthiness Decisions: Automatic Coding Of Face Properties In Human Amygdala, Andrew Engell
Andrew Engell
Deciding whether an unfamiliar person is trustworthy is one of the most important decisions in social environments. We used functional magnetic resonance imaging to show that the amygdala is involved in implicit evaluations of trustworthiness of faces, consistent with prior findings. The amygdala response increased as perceived trustworthiness decreased in a task that did not demand person evaluation. More importantly, we tested whether this response is due to an individual’s idiosyncratic perception or to face properties that are perceived as untrustworthy across individuals. The amygdala response was better predicted by consensus ratings of trustworthiness than by an individual’s own judgments. …
Left Posterior Temporal Regions Are Sensitive To Auditory Categorization, Rutvik Desai, E. Liebenthal, E. Waldron, J. Binder
Left Posterior Temporal Regions Are Sensitive To Auditory Categorization, Rutvik Desai, E. Liebenthal, E. Waldron, J. Binder
Rutvik Desai
No abstract provided.
Parkinson’S Disease Disrupts Both Automatic And Controlled Processing Of Action Verbs, L. Fernandino, L. Conant, J. Binder, K. Blindauer, B. Hiner, K. Spangler, Rutvik Desai
Parkinson’S Disease Disrupts Both Automatic And Controlled Processing Of Action Verbs, L. Fernandino, L. Conant, J. Binder, K. Blindauer, B. Hiner, K. Spangler, Rutvik Desai
Rutvik Desai
No abstract provided.
The Neural Career Of Sensory-Motor Metaphors, Rutvik Desai, J. Binder, L. Conant, Q. Mano, M. Seidenberg
The Neural Career Of Sensory-Motor Metaphors, Rutvik Desai, J. Binder, L. Conant, Q. Mano, M. Seidenberg
Rutvik Desai
No abstract provided.
Fmri Of Past Tense Processing: The Effects Of Phonological Complexity And Task Difficulty, Rutvik Desai, L. Conant, E. Waldron, J. Binder
Fmri Of Past Tense Processing: The Effects Of Phonological Complexity And Task Difficulty, Rutvik Desai, L. Conant, E. Waldron, J. Binder
Rutvik Desai
No abstract provided.
Familiarity Differentially Affects Right Hemisphere Contributions To Processing Metaphors And Literals, V. Lai, Wessel Van Dam, L. Conant, J. Binder, Rutvik Desai
Familiarity Differentially Affects Right Hemisphere Contributions To Processing Metaphors And Literals, V. Lai, Wessel Van Dam, L. Conant, J. Binder, Rutvik Desai
Rutvik Desai
The role of the two hemispheres in processing metaphoric language is controversial. While some studies have reported a special role of the right hemisphere (RH) in processing metaphors, others indicate no difference in laterality relative to literal language. Some studies have found a role of the RH for novel/unfamiliar metaphors, but not conventional/familiar metaphors. It is not clear, however, whether the role of the RH is specific to metaphor novelty, or whether it reflects processing, reinterpretation or reanalysis of novel/unfamiliar language in general. Here we used functional magnetic resonance imaging (fMRI) to examine the effects of familiarity in both metaphoric …
Bootstrapping In Miniature Language Acquisition, Rutvik Desai
Bootstrapping In Miniature Language Acquisition, Rutvik Desai
Rutvik Desai
No abstract provided.
Stimulus Induced Reversal Of Information Flow Through A Cortical Network For Animacy Perception., Sarah Shultz, Rebecca Van Den Honert, Andrew Engell, Gregory Mccarthy
Stimulus Induced Reversal Of Information Flow Through A Cortical Network For Animacy Perception., Sarah Shultz, Rebecca Van Den Honert, Andrew Engell, Gregory Mccarthy
Andrew Engell
Does Experience In Talking Facilitate Speech Repetition?, Linda Shuster, Donna Moore, Gang Chen, Dennis Ruscello, William Wonderlin
Does Experience In Talking Facilitate Speech Repetition?, Linda Shuster, Donna Moore, Gang Chen, Dennis Ruscello, William Wonderlin
Linda Shuster
No abstract provided.
Autism Spectrum Traits Predict The Neural Response To Eye Gaze In Typical Individuals., Lauri Nummenmaa, Andrew Engell, Elisabeth Von Dem Hagen, Richard Henson, Andy Calder
Autism Spectrum Traits Predict The Neural Response To Eye Gaze In Typical Individuals., Lauri Nummenmaa, Andrew Engell, Elisabeth Von Dem Hagen, Richard Henson, Andy Calder
Andrew Engell
Pain As Fact And Heuristic: How Pain Neuroimaging Illuminates Moral Dimensions Of Law, Amanda Pustilnik
Pain As Fact And Heuristic: How Pain Neuroimaging Illuminates Moral Dimensions Of Law, Amanda Pustilnik
Amanda C Pustilnik
Legal statuses, prohibitions, and protections often turn on the presence and degree of physical pain. In legal domains ranging from tort to torture, pain and its degree do important definitional work by delimiting boundaries of lawfulness and of entitlements. The omnipresence of pain in law suggests that the law embodies an intuition about the ontological primacy of pain. Yet, for all the work done by pain as a term in legal texts and practice, it has had a confounding lack of external verifiability. As with other subjective states, we have been able to impute pain’s presence but have not been …
Task-Invariant Brain Responses To The Social Value Of Faces., Alex Todorov, Chris Said, Nicholas Oosterhof, Andrew Engell
Task-Invariant Brain Responses To The Social Value Of Faces., Alex Todorov, Chris Said, Nicholas Oosterhof, Andrew Engell
Andrew Engell
Autism Spectrum Traits In The Typical Population Predict Structure And Function In The Posterior Superior Temporal Sulcus., Elisabeth Von Dem Hagen, Lauri Nummenmaa, R Yu, Andrew Engell, Michael Ewbank, Andy Calder
Autism Spectrum Traits In The Typical Population Predict Structure And Function In The Posterior Superior Temporal Sulcus., Elisabeth Von Dem Hagen, Lauri Nummenmaa, R Yu, Andrew Engell, Michael Ewbank, Andy Calder
Andrew Engell
Amygdala And Dorsomedial Prefrontal Cortex Responses To Appearance-Based And Behavior-Based Person Impressions., Sean Baron, M Gobinni, Andrew Engell, Alex Todorov
Amygdala And Dorsomedial Prefrontal Cortex Responses To Appearance-Based And Behavior-Based Person Impressions., Sean Baron, M Gobinni, Andrew Engell, Alex Todorov
Andrew Engell
Distributed Representations Of Dynamic Facial Expressions In The Superior Temporal Sulcus., Chris Said, Chris Moore, Andrew Engell, Alex Todroov, James Haxby
Distributed Representations Of Dynamic Facial Expressions In The Superior Temporal Sulcus., Chris Said, Chris Moore, Andrew Engell, Alex Todroov, James Haxby
Andrew Engell
Connectivity Analysis Reveals A Cortical Network For Eye Gaze Perception., Lauri Nummenmaa, Luca Passamonti, James Rowe, Andrew Engell, Andy Calder
Connectivity Analysis Reveals A Cortical Network For Eye Gaze Perception., Lauri Nummenmaa, Luca Passamonti, James Rowe, Andrew Engell, Andy Calder
Andrew Engell
Autism-Like Behavioral Phenotypes In Btbr Ttf/J Mice. Genes, Hewlet Mcfarlane
Autism-Like Behavioral Phenotypes In Btbr Ttf/J Mice. Genes, Hewlet Mcfarlane
Hewlet McFarlane
No abstract provided.
Understanding Evaluation Of Faces On Social Dimensions., Alex Todorov, Said Chris, Andrew Engell, Nicholas Oosterhof
Understanding Evaluation Of Faces On Social Dimensions., Alex Todorov, Said Chris, Andrew Engell, Nicholas Oosterhof
Andrew Engell
The Neural Bases Of Cognitive Conflict And Control In Moral Judgment., Joshua Greene, Leigh Nystrom, Andrew Engell, John Darley, Jon Cohen
The Neural Bases Of Cognitive Conflict And Control In Moral Judgment., Joshua Greene, Leigh Nystrom, Andrew Engell, John Darley, Jon Cohen
Andrew Engell