Low-Frequency Repetitive Transcranial Magnetic Stimulation to Right Parietal Cortex Disrupts Perception of Briefly Presented Stimuli

Autor:	Howard, CJ, Boulton, H, Bedwell, SA, Boatman, CA, Roberts, KL, Mitra, S
Rok vydání:	2019
Předmět:	Adult Male medicine.medical_specialty Time Factors Visual perception Adolescent medicine.medical_treatment media_common.quotation_subject Posterior parietal cortex Experimental and Cognitive Psychology Stimulation Stimulus (physiology) Audiology 050105 experimental psychology Young Adult 03 medical and health sciences Discrimination Psychological 0302 clinical medicine Artificial Intelligence Parietal Lobe Perception medicine Humans Attention 0501 psychology and cognitive sciences media_common 05 social sciences Transcranial Magnetic Stimulation Sensory Systems Transcranial magnetic stimulation Ophthalmology Pattern Recognition Visual Visual discrimination Female Spatial frequency Psychology Psychomotor Performance 030217 neurology & neurosurgery
Zdroj:	Perception. 48:346-355
ISSN:	1468-4233 0301-0066
DOI:	10.1177/0301006619834251
Popis:	Right parietal cortex has recently been linked to the temporal resolution of attention. We therefore sought to investigate whether disruption to right parietal cortex would affect attention to visual stimuli presented for brief durations. Participants performed a visual discrimination task before and after 10 minutes repetitive transcranial magnetic stimulation (1 Hz) to right or central parietal cortex as well as 20 minutes after the second block of trials. Participants reported the spatial frequency of a masked Gabor patch presented for a brief duration of 60, 120, or 240 ms. We calculated error magnitudes by comparing accuracy to a guessing model. We then compared error magnitudes to blocks with no stimulation, producing a measure of baselined performance. Baselined performance was poorer at longer stimulus durations after right parietal than central parietal stimulation, suggesting that right parietal cortex is involved in attention to briefly presented stimuli, particularly in situations where rapid accumulation of visual evidence is needed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a6bfe29ead4a39e8f8d314e2b253929a https://doi.org/10.1177/0301006619834251 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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