The Noisy Brain: Power of Resting-State Fluctuations Predicts Individual Recognition Performance.
Cell Rep
; 29(12): 3775-3784.e4, 2019 12 17.
Article
en En
| MEDLINE
| ID: mdl-31851911
ABSTRACT
The unique profile of strong and weak cognitive traits characterizing each individual is of a fundamental significance, yet their neurophysiological underpinnings remain elusive. Here, we present intracranial electroencephalogram (iEEG) measurements in humans pointing to resting-state cortical "noise" as a possible neurophysiological trait that limits visual recognition capacity. We show that amplitudes of slow (<1 Hz) spontaneous fluctuations in high-frequency power measured during rest were predictive of the patients' performance in a visual recognition 1-back task (26 patients, total of 1,389 bipolar contacts pairs). Importantly, the effect was selective only to task-related cortical sites. The prediction was significant even across long (mean distance 4.6 ± 2.8 days) lags. These findings highlight the level of the individuals' internal "noise" as a trait that limits performance in externally oriented demanding tasks.
Palabras clave
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Descanso
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Análisis y Desempeño de Tareas
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Encéfalo
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Mapeo Encefálico
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Reconocimiento en Psicología
Tipo de estudio:
Prognostic_studies
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Risk_factors_studies
Límite:
Adult
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Female
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Humans
Idioma:
En
Año:
2019
Tipo del documento:
Article