Abstract We show that under natural viewing, the responses of cells in temporal lobe macaque to sight static head and body postures is controlled by immediately preceding actions. Cells anterior part superior sulcus responded vigorously a face or posture followed particular action, but not when it other The effective action presented isolation different sequences failed produce response. Our results demonstrate cortex could support formation expectations about impending behavior others.

This study investigated the cellular mechanisms in anterior part of superior temporal sulcus (STSa) that underlie integration different features same visually perceived animate object. Three visual were systematically manipulated: form, motion and location. In 58% a population cells selectively responsive to sight walking agent, location agent significantly influenced cell's response. The influence position was often evident intricate two- three-way interactions with factors form and/or...

This study examined how cells in the temporal cortex code orientation and size of a complex object. The focused on selectively responsive to sight head body but unresponsive control stimuli. majority tested (19/26, 73%) were particular picture plane static whole stimulus, 7/26 showed generalisation responding all orientations (three with tuning superimposed generalised response). Of sensitive orientation, (15/22, 68%) tuned upright image. (81%, 13/16) selective for stimulus size. remaining...

Viewing static photographs of objects in motion evokes higher fMRI activation the human medial temporal complex (MT+) than looking at similar without this implied motion. As MT+ is traditionally thought to be involved perception (and not form perception), finding suggests feedback from object-recognition areas onto MT+. To investigate hypothesis, we recorded extracranial potentials evoked by sight biological agents with and The difference potential between responses pictures was maximal 260...

Abstract Viewing static photographs of objects in motion evokes higher fMRI activation the human medial temporal complex (MT+) than looking at similar without this implied motion. As MT+ is traditionally thought to be involved perception (and not form perception), finding suggests feedback from object-recognition areas onto MT+. To investigate hypothesis, we recorded extracranial potentials evoked by sight biological agents with and The difference potential between responses pictures was...

Emotional facial expressions are immediate indicators of the affective dispositions others. Recently it has been shown that early stages social perception can already be influenced by (implicit) attributions made observer about agent's mental state and intentions. In current study possible mechanisms underpinning distortions in dynamic, ecologically-valid, were explored. four experiments we examined to what extent basic perceptual processes such as contrast/context effects, adaptation...

Abstract A new social distance judgment task was used to measure quantitatively the extent which cues are immediately and involuntary interpreted by typically developing (TD) individuals with autism spectrum disorders (ASD). The thus tapped into ability “pick up” meaning of cues. tested were attention implied biological motion. Task performance ASD TD groups similarly affected a perceptual low‐level illusion induced physical characteristics stimuli. In contrast, high‐level implications only...

Anticipation of others' actions is paramount importance in social interactions.Cues such as gaze direction and facial expressions can be informative, but also produce ambiguity with respect to intentions.We investigated the combined effect an actor's expression on judgments made by observers about end-point head rotation toward observer.Expressions approach gave rise unambiguous intention move observer, while avoidance ambiguous behavioral (as motion cues were conflict).In condition,...

We report a new perceptual distortion of neutral facial expressions induced by the immediate dynamic history. In Experiment 1, participants evaluated expression on last frame videoclips showing morphs from happy or angry to neutral, and consistently judged these as slightly in happy-to-neutral condition, angry-to-neutral condition. To exclude possibility cognitive response strategy, Experiments 2 3 sequences were used an affective priming paradigm task-irrelevant distractors, with positive...

Understanding and anticipating others' mental or emotional states relies on the processing of social cues, such as dynamic facial expressions. Individuals with high-functioning autism (HFA) may process these cues differently from individuals typical development (TD) purportedly use a 'mechanistic' rather than 'mentalistic' approach, involving rule- contingency-based interpretations stimuli. The study primarily aimed at examining whether judgments expressions made by TD HFA would be similarly...

Abstract Viewing static pictures of running humans evokes neural activity in the dorsal motion-sensitive cortex. To establish whether this response arises from direction-selective neurons that are also involved real motion processing, we measured visually evoked potential to implied following adaptation or moving random dot patterns. The was defined as difference between potentials with and without motion. Interaction found a modulation by preceding adaptation. amplitude significantly...

Background An increasing body of evidence suggests that the apparent social impairments observed in schizophrenia may arise from deficits cognitive processing capacities. The ability to process basic cues, such as gaze direction and biological motion, effortlessly implicitly is thought be a prerequisite for establishing successful interactions construing sense "social intuition." However, studies address cues are lacking. Because part genetic vulnerability schizophrenia, we also investigated...

Abstract To investigate form-related activity in motion-sensitive cortical areas, we recorded cell responses to animate implied motion macaque middle temporal (MT) and medial superior (MST) cortex investigated these areas using fMRI humans. In the single-cell studies, compared with static images of human or monkey figures walking running left right same standing sitting still. We also whether view figure (facing right) that elicited highest response was correlated preferred direction for...

The results of this study illustrate a new high-level visual aftereffect: Observing actors walking forward, without horizontal translation, makes subsequent appear to walk backward, and the opposite effect is obtained after observing backward walking. We used aftereffect, which cannot be explained by simple low-level adaptation motion direction, investigate properties neural mechanisms underlying recognition actions. Our suggest that perception static images in postures rely on common brain...

The processing of several important aspects a human face was investigated in single patient (LZ), who had large infarct the right hemisphere involving parietal, and temporal lobes with extensions into frontal region. LZ showed selective problems recognizing emotional expressions, whereas she flawless gender, familiarity, identity. She very poor negative facial expressions (fear, disgust, anger, sadness), but scored as well controls on positive expression happiness. However, two experiments...