A causal involvement of the left supramarginal gyrus during the retention of musical pitches

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題名:	A causal involvement of the left supramarginal gyrus during the retention of musical pitches
作者:	馬杰仁;Schaal, Nora K.;Williamson, Victoria J.;Kelly, Maria;Muggleton, Neil G.;Pollok, Bettina;Krause, Vanessa;Banissy, Michael J.
貢獻者:	生醫理工學院認知神經科學研究所
關鍵詞:	Adolescent;Adult;Female;Humans;Left supramarginal gyrus;Male;Music;Parietal Lobe - physiology;Pitch memory;Pitch Perception - physiology;Reaction Time - physiology;Retention;Retention (Psychology) - physiology;Transcranial Magnetic Stimulation;Young Adult
日期:	2015-03-01
上傳時間:	2026-04-23 14:17:16 (UTC+8)
出版者:	Italy: Elsevier Ltd
摘要:	摘要： Brain stimulation studies have previously demonstrated a causal link between general pitch memory processes and activity within the left supramarginal gyrus (SMG). Building on this evidence, the present study tested the impact of left SMG stimulation on two distinct pitch memory phases, retention and encoding. Repetitive transcranial magnetic stimulation (rTMS) was employed during the retention stage (Experiment 1) and the encoding phase (Experiment 2) of a pitch recognition task. Stimulation was applied on a trial-by-trial basis over the left SMG (target site) or the vertex (control site). A block without TMS was also completed. In Experiment 1, rTMS over the left SMG during pitch retention led to significantly increased reaction times compared to control conditions. In Experiment 2 no rTMS modulation effects were found during encoding. Experiment 3 was conducted as a control for non-specific stimulation effects; no effects were found when rTMS was applied over the left SMG at the two different time points during a perceptual task. Taken together, these findings highlight a phase-specific involvement of the left SMG in the retention phase of pitch memory, thereby indicating that the left SMG is involved in the maintenance of pitch information. 其他題名： Cortex 出版者： Italy: Elsevier Ltd 出版日期： 2015-03-01 出處： Cortex, 2015-03, Vol.64, p.310-317 版權： 2014 Elsevier Ltd 版權： Copyright © 2014 Elsevier Ltd. All rights reserved. 識別號： ISSN: 0010-9452 識別號： ISSN: 1973-8102 識別號： EISSN: 1973-8102 識別號： DOI: 10.1016/j.cortex.2014.11.011 識別號： PMID: 25577719
顯示於類別:	[認知與神經科學研究所 ] 期刊論文

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