Is short-term memory capacity (7±2) really predicted by theta to gamma cycle length ratio?

被引：4

作者：

Maleninska, Kristyna ^{[1
,3
,4
]}

Rudolfova, Veronika ^{[1
,2
]}

Sulcova, Katerina ^{[1
,5
]}

Koudelka, Vlastimil ^{[1
]}

Brunovsky, Martin ^{[1
,5
]}

Horacek, Jiri ^{[1
,5
]}

Nekovarova, Tereza ^{[1
,2
]}

机构：

[1] Natl Inst Mental Hlth, Topolova 748, Klecany 25067, Czech Republic

[2] Charles Univ Prague, Fac Sci, Dept Zool, Vinicna 7, Prague 12844, Czech Republic

[3] Charles Univ Prague, Fac Sci, Dept Physiol, Vinicna 7, Prague 12844, Czech Republic

[4] Czech Acad Sci, Inst Physiol, Videnska 1083, Prague 14220, Czech Republic

[5] Charles Univ Prague, Fac Med 3, Ruska 2411, Prague 10000, Czech Republic

来源：

BEHAVIOURAL BRAIN RESEARCH | 2021年 / 414卷

关键词：

EEG; theta; gamma; cross-frequency coupling; phase-amplitude coupling; short-term memory capacity; WORKING-MEMORY; BAND ACTIVITY; OSCILLATIONS; ABILITY; NUMBER; TASK; LOAD; EEG;

D O I：

10.1016/j.bbr.2021.113465

中图分类号：

B84 [心理学]; C [社会科学总论]; Q98 [人类学];

学科分类号：

03 ; 0303 ; 030303 ; 04 ; 0402 ;

摘要：

Several studies suggest that EEG parameters, reflecting top-down processes in the brain, may predict cognitive performance, e.g. short-term memory (STM) capacity. According to Lisman and Idiart's model, STM capacity is predicted by theta and gamma EEG waves and their ratio. This model suggests that the more periods of gamma band waves fit into one period of theta band waves, the more information can be stored. We replicated the study by Kaminski et al. (2011), which recorded spontaneous EEG activity and measured verbal STM capacity with a modified digit span task from the Wechsler battery. Our study included more subjects and two EEG recording sessions. We discuss the possible limits of EEG correlates of STM capacity as EEG parameters were not stable across the two measurements and no correlation was found between the theta/gamma ratio and performance in the digit span task.

引用

页数：5

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