Brain responds to another person's eye blinks in a natural setting-the more empathetic the viewer the stronger the responses
Autor: | Anne Mandel, Riitta Hari, Elina Pihko, Siiri Helokunnas |
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Rok vydání: | 2015 |
Předmět: |
Adult
Male medicine.medical_specialty Eye Movements genetic structures media_common.quotation_subject Motion Perception Video Recording Empathy Neuropsychological Tests Audiology 050105 experimental psychology Young Adult 03 medical and health sciences Nonverbal communication 0302 clinical medicine medicine Humans 0501 psychology and cognitive sciences Eye Movement Measurements media_common Communication Narration Blinking medicine.diagnostic_test business.industry General Neuroscience 05 social sciences Brain Magnetoencephalography Eye movement Gaze Acoustic Stimulation Social Perception Interpersonal Reactivity Index Saccade Auditory Perception Eye tracking Female business Psychology Facial Recognition Photic Stimulation 030217 neurology & neurosurgery |
Zdroj: | European Journal of Neuroscience. 42:2508-2514 |
ISSN: | 0953-816X |
DOI: | 10.1111/ejn.13011 |
Popis: | An observer's brain is known to respond to another person's small nonverbal signals, such as gaze shifts and eye blinks. Here we aimed to find out how an observer's brain reacts to a speaker's eye blinks in the presence of other audiovisual information. Magnetoencephalographic brain responses along with eye gaze were recorded from 13 adults who watched a video of a person telling a story. The video was presented first without sound (visual), then with sound (audiovisual), and finally the audio story was presented with a still-frame picture on the screen (audio control). The viewers mainly gazed at the eye region of the speaker. Their saccades were suppressed at about 180 ms after the start of the speaker's blinks, a subsequent increase of saccade occurence to the base level, or higher, at around 340 ms. The suppression occurred in visual and audiovisual conditions but not during the control audio presentation. Prominent brain responses to blinks peaked in the viewer's occipital cortex at about 250 ms, with no differences in mean peak amplitudes or latencies between visual and audiovisual conditions. During the audiovisual, but not visual-only, presentation, the responses were the stronger the more empathetic the subject was according to the Empathic Concern score of the Interpersonal Reactivity Index questionnaire (Spearman's rank correlation, 0.73). The other person's eye blinks, nonverbal signs that often go unnoticed, thus elicited clear brain responses even in the presence of attention-attracting audiovisual information from the narrative, with stronger responses in people with higher empathy scores. |
Databáze: | OpenAIRE |
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