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Front Hum Neurosci. 2017 Oct 18;11:504. doi: 10.3389/fnhum.2017.00504. eCollection 2017.

An Emotion-Enriched Context Influences the Effect of Action Observation on Cortical Excitability.

Frontiers in human neuroscience

Giovanna Lagravinese, Ambra Bisio, Alessia Raffo De Ferrari, Elisa Pelosin, Piero Ruggeri, Marco Bove, Laura Avanzino

Affiliations

  1. Department of Experimental Medicine, Section of Human Physiology, University of Genoa, Genoa, Italy.
  2. Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics and Maternal Child Health, University of Genoa, Genoa, Italy.

PMID: 29093674 PMCID: PMC5651558 DOI: 10.3389/fnhum.2017.00504

Abstract

Observing other people in action activates the "mirror neuron system" that serves for action comprehension and prediction. Recent evidence suggests that this function requires a high level codification triggered not only by components of motor behavior, but also by the environment where the action is embedded. An overlooked component of action perceiving is the one related to the emotional information provided by the context where the observed action takes place. Indeed, whether valence and arousal associated to an emotion might exert an influence on motor system activation during action observation has not been assessed so far. Here, cortico-spinal excitability of the left motor cortex was recorded in three groups of subjects. In the first condition, motor-evoked potential (MEPs) were recorded from a muscle involved in the grasping movement (i.e., abductor pollicis brevis, APB) while participants were watching the same reach-to-grasp movement embedded in contexts with negative emotional valence, but different levels of arousal: sadness (low arousal), and disgust (high arousal) ("Context

Keywords: action observation; context; emotion; mirror neuron system; transcranial magnetic stimulation

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