Correlates of Theta and Gamma Activity during Visuospatial Incidental/Intentional Encoding and Retrieval Indicate Differences in Processing in Young and Elderly Healthy Participants

被引：0

作者：

Junco-Munoz, Mariana Lizeth ^{[1
,2
]}

Mejia-Rodriguez, Oliva ^{[3
]}

Cervantes-Alfaro, Jose Miguel ^{[4
]}

Tellez-Anguiano, Adriana del Carmen ^{[5
]}

Lopez-Vazquez, Miguel Angel ^{[6
]}

Olvera-Cortes, Maria Esther ^{[1
]}

机构：

[1] Inst Mexicano Seguro Social, Ctr Invest Biomed Michoacan, Lab Neurofisiol Clin & Expt, Morelia 58060, Michoacan, Mexico

[2] Univ Michoacana, Fac Psicol, Morelia, Michoacan, Mexico

[3] Inst Mexicano Seguro Social, Div Invest Clin, Ctr Invest Biomed Michoacan, Morelia 58060, Michoacan, Mexico

[4] Univ Michoacana, Fac Ciencias Med Dr Ignacio Chavez, Div Estudios Posgrad, Lab Neurociencias, Morelia 58194, Michoacan, Mexico

[5] Tecnol Nacl Mexico, Div Grad Studies Res, Morelia 58120, Michoacan, Mexico

[6] Inst Mexicano Seguro Social, Lab Neuroplast, Div Neurociencias, Ctr Invest Biomed Michoacan, Morelia 58060, Michoacan, Mexico

来源：

BRAIN SCIENCES | 2024年 / 14卷 / 08期

关键词：

aging; visuo-spatial learning; incidental learning; intentional learning; theta activity; gamma activity; MEDIAL TEMPORAL-LOBE; OSCILLATORY BRAIN ACTIVITY; AGE-RELATED DIFFERENCES; MEMORY PERFORMANCE; EPISODIC MEMORY; WORKING-MEMORY; OLDER-ADULTS; ALPHA; EEG; SYNCHRONIZATION;

D O I：

10.3390/brainsci14080786

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

Incidental visuospatial learning acquired under incidental conditions is more vulnerable to aging than in the intentional case. The theta and gamma correlates of the coding and retrieval of episodic memory change during aging. Based on the vulnerability of incidental coding to aging, different theta and gamma correlates could occur under the incidental versus intentional coding and retrieval of visuospatial information. Theta and gamma EEG was recorded from the frontotemporal regions, and incidental/intentional visuospatial learning was evaluated in young (25-60 years old) and elderly (60-85 years old) participants. The EEG recorded during encoding and retrieval was compared between incidental low-demand, incidental high-demand, and intentional conditions through an ANCOVA considering the patient's gender, IQ, and years of schooling as covariates. Older adults exhibited worse performances, especially in place-object associations. After the intentional study, older participants showed a further increase in false-positive errors. Higher power at the theta and gamma bands was observed for frontotemporal derivations in older participants for both encoding and retrieval. Under retrieval, only young participants had lower power in terms of errors compared with correct responses. In conclusion, the different patterns of power and coherence support incidental and intentional visuospatial encoding and retrieval in young and elderly individuals. The correlates of power with behavior are sensitive to age and performance.

引用

页数：19