scholarly journals Brain activity evoked by perception of novel 'biological motion'

2010 ◽  
Vol 6 (6) ◽  
pp. 794-794
Author(s):  
J. A. Pyles ◽  
J. O. Garcia ◽  
D. D. Hoffman ◽  
E. D. Grossman
Keyword(s):  
Biological Motion ◽  
Brain Activity

Learning to See Biological Motion: Brain Activity Parallels Behavior

2004 ◽  
Vol 16 (9) ◽  
pp. 1669-1679 ◽  
Author(s):  
Emily D. Grossman ◽  
Randolph Blake ◽  
Chai-Youn Kim
Keyword(s):  
Neural Activity ◽  
Biological Motion ◽  
Brain Activity ◽  
Daily Practice ◽  
Superior Temporal Sulcus ◽  
Fusiform Face Area ◽  
Face Area ◽  
Perceptual Performance ◽  
Trained Observers ◽  
Posterior Superior Temporal Sulcus

Individuals improve with practice on a variety of perceptual tasks, presumably reflecting plasticity in underlying neural mechanisms. We trained observers to discriminate biological motion from scrambled (nonbiological) motion and examined whether the resulting improvement in perceptual performance was accompanied by changes in activation within the posterior superior temporal sulcus and the fusiform “face area,” brain areas involved in perception of biological events. With daily practice, initially naive observers became more proficient at discriminating biological from scrambled animations embedded in an array of dynamic “noise” dots, with the extent of improvement varying among observers. Learning generalized to animations never seen before, indicating that observers had not simply memorized specific exemplars. In the same observers, neural activity prior to and following training was measured using functional magnetic resonance imaging. Neural activity within the posterior superior temporal sulcus and the fusiform “face area” reflected the participants' learning: BOLD signals were significantly larger after training in response both to animations experienced during training and to novel animations. The degree of learning was positively correlated with the amplitude changes in BOLD signals.

scholarly journals A New Action Library for Localising Brain Activity Specific to Biological Motion

2011 ◽  
Vol 11 (11) ◽  
pp. 683-683
Author(s):  
F. Pollick ◽  
W. Steel ◽  
H. Tan ◽  
L. Piwek ◽  
F. Crabbe ◽  
...  
Keyword(s):  
Biological Motion ◽  
Brain Activity

Perceived causality influences brain activity evoked by biological motion

2008 ◽  
Vol 3 (1) ◽  
pp. 16-25 ◽  
Author(s):  
James P. Morris ◽  
Kevin A. Pelphrey ◽  
Gregory McCarthy
Keyword(s):  
Biological Motion ◽  
Brain Activity

scholarly journals EEG frequency tagging reveals neural entrainment to people moving in synchrony

2020 ◽  
Author(s):  
Emiel Cracco ◽  
Haeeun Lee ◽  
Goedele van Belle ◽  
Lisa Quenon ◽  
Patrick Haggard ◽  
...  
Keyword(s):  
Biological Motion ◽  
Brain Activity ◽  
Motion Processing ◽  
Body Postures ◽  
Brain Responses ◽  
Biological Motion Perception ◽  
Hierarchical Levels ◽  
Orientation Experiment ◽  
Neural Entrainment ◽  
The Brain

AbstractHumans and other animals have evolved to act in groups, but how does the brain distinguish multiple people moving in group from multiple people moving independently? Across three experiments, we test whether biological motion perception depends on the spatiotemporal relationships among people moving together. In Experiment 1, we apply EEG frequency tagging to apparent biological motion and show that fluently ordered sequences of body postures drive brain activity at three hierarchical levels of biological motion processing: image, body sequence, and movement. We then show that movement-, but not body- or image-related brain responses are enhanced when observing four agents moving in synchrony. Neural entrainment was strongest for fluently moving synchronous groups (Experiment 2), displayed in upright orientation (Experiment 3). Our findings show that the brain preferentially entrains to the collective movement of human agents, deploying perceptual organization principles of synchrony and common fate for the purpose of social perception.

scholarly journals Oxytocin treatment attenuates amygdala activity in autism: a treatment-mechanism study with long-term follow-up

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Sylvie Bernaerts ◽  
Bart Boets ◽  
Jean Steyaert ◽  
Nicole Wenderoth ◽  
Kaat Alaerts
Keyword(s):  
Single Dose ◽  
Multiple Dose ◽  
Biological Motion ◽  
Brain Activity ◽  
Neural Substrates ◽  
Emotional States ◽  
Dose Treatment ◽  
Amygdala Activity ◽  
Point Light

Abstract Intranasal administration of the neuropeptide oxytocin (IN-OT) is increasingly considered as a potential treatment for targeting the core symptoms of autism spectrum disorder (ASD), but the effects of continual use on neural substrates are fairly unexplored and long-term effects are unknown. In this double-blind, randomized, placebo-controlled study, we investigated the effects of single-dose and multiple-dose IN-OT treatment (4 weeks of daily (24 IU) administrations) on brain activity related to processing emotional states. Thirty-eight adult men with ASD (aged between 18 and 35 years) underwent functional magnetic resonance imaging of the posterior superior temporal gyrus (pSTS) and amygdala regions while processing emotional states from point-light biological motion. In line with prior research, a single dose of IN-OT induced a reliable increase in pSTS brain activity during the processing of point-light biological motion, but no consistent long-term changes in pSTS activity were induced after the multiple-dose treatment. In terms of bilateral amygdala, the multiple-dose treatment induced a consistent attenuation in brain activity, which outlasted the period of actual administrations until four weeks and one year post-treatment. Critically, participants with stronger attenuations in amygdala-activity showed greater behavioral improvements, particularly in terms of self-reported feelings of avoidant attachment and social functioning. Together, these observations provide initial insights into the long-lasting neural consequences of chronic IN-OT use on amygdala functioning and provide first indications that the acute versus chronic effects of IN-OT administration may be qualitatively different. Larger studies are however warranted to further elucidate the long-term impact of IN-OT treatment on human neural substrates and its behavioral consequences.

scholarly journals Brain activity evoked by inverted and imagined biological motion

2001 ◽  
Vol 41 (10-11) ◽  
pp. 1475-1482 ◽  
Author(s):  
E.D. Grossman ◽  
R. Blake
Keyword(s):  
Biological Motion ◽  
Brain Activity

Brain activity for peripheral biological motion in the posterior superior temporal gyrus and the fusiform gyrus: Dependence on visual hemifield and view orientation

NeuroImage ◽  
2009 ◽  
Vol 45 (1) ◽  
pp. 151-159 ◽  
Author(s):  
Lars Michels ◽  
Raimund Kleiser ◽  
Marc H.E. de Lussanet ◽  
Rüdiger J. Seitz ◽  
Markus Lappe
Keyword(s):  
Biological Motion ◽  
Brain Activity ◽  
Superior Temporal Gyrus ◽  
Fusiform Gyrus ◽  
Visual Hemifield

scholarly journals Brain activity reflects perceptual learning of point-light biological motion

2010 ◽  
Vol 3 (9) ◽  
pp. 81-81
Author(s):  
E. D Grossman ◽  
C.-Y. Kim ◽  
R. Blake
Keyword(s):  
Perceptual Learning ◽  
Biological Motion ◽  
Brain Activity ◽  
Point Light
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