Detailed Information on Publication Record
2013
Hippocampal negative event-related potential recorded in humans during a simple sensorimotor task occurs independently of motor execution
ROMAN, Robert, Milan BRÁZDIL, Jan CHLÁDEK, Ivan REKTOR, Pavel JURÁK et. al.Basic information
Original name
Hippocampal negative event-related potential recorded in humans during a simple sensorimotor task occurs independently of motor execution
Authors
ROMAN, Robert (203 Czech Republic, belonging to the institution), Milan BRÁZDIL (203 Czech Republic, guarantor, belonging to the institution), Jan CHLÁDEK (203 Czech Republic, belonging to the institution), Ivan REKTOR (203 Czech Republic, belonging to the institution), Pavel JURÁK (203 Czech Republic), Miroslav SVĚTLÁK (203 Czech Republic, belonging to the institution), Alena DAMBORSKÁ (203 Czech Republic, belonging to the institution), Daniel Joel SHAW (826 United Kingdom of Great Britain and Northern Ireland, belonging to the institution) and Miloslav KUKLETA (203 Czech Republic, belonging to the institution)
Edition
Hippocampus, Hoboken, USA, WILEY-BLACKWELL, 2013, 1050-9631
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
30000 3. Medical and Health Sciences
Country of publisher
United States of America
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 4.302
RIV identification code
RIV/00216224:14740/13:00066278
Organization unit
Central European Institute of Technology
UT WoS
000327157200019
Keywords in English
intracranial recordings; auditory task; hippocampus; ERP latency; motor response
Tags
International impact, Reviewed
Změněno: 31/1/2014 09:24, Olga Křížová
Abstract
V originále
A hippocampal prominent event-related potential (ERP) with a peak latency at around 450 ms is consistently observed as a correlate of hippocampal activity during various cognitive tasks. Some intracranial EEG studies demonstrated that the amplitude of this hippocampal potential was greater in response to stimuli requiring an overt motor response, in comparison with stimuli for which no motor response is required. These findings could indicate that hippocampal evoked activity is related to movement execution as well as stimulus evaluation and associated memory processes. The aim of the present study was to investigate the temporal relationship between the hippocampal negative potential latency and motor responses. We analyzed ERPs recorded with 22 depth electrodes implanted into the hippocampi of 11 epileptic patients. Subjects were instructed to press a button after the presentation of a tone. All investigated hippocampi generated a prominent negative ERP peaking at approximately 420 ms. In 16 from 22 cases we found that the ERP latency did not correlate with the reaction time; in different subjects, this potential could either precede or follow the motor response. Our results indicate that the hippocampal negative ERP occurs independently of motor execution. We suggest that hippocampal evoked activity, recorded in a simple sensorimotor task, is related to the evaluation of stimulus meaning within the context of situation.
Links
ED1.1.00/02.0068, research and development project |
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GAP103/11/0933, research and development project |
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MSM0021622404, plan (intention) |
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