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1.
Science ; 338(6110): 1097-100, 2012 Nov 23.
Artigo em Inglês | MEDLINE | ID: mdl-23118014

RESUMO

Lateral prefrontal and posterior parietal cortical areas exhibit task-dependent activation during working memory tasks in humans and monkeys. Neurons in these regions become synchronized during attention-demanding tasks, but the contribution of these interactions to working memory is largely unknown. Using simultaneous recordings of neural activity from multiple areas in both regions, we find widespread, task-dependent, and content-specific synchronization of activity across the fronto-parietal network during visual working memory. The patterns of synchronization are prevalent among stimulus-selective neurons and are governed by influences arising in parietal cortex. These results indicate that short-term memories are represented by large-scale patterns of synchronized activity across the fronto-parietal network.


Assuntos
Lobo Frontal/fisiologia , Memória de Curto Prazo , Lobo Parietal/fisiologia , Percepção Visual , Animais , Atenção , Feminino , Lobo Frontal/citologia , Macaca mulatta , Neurônios/citologia , Neurônios/fisiologia , Lobo Parietal/citologia
2.
Rev Iberoam Micol ; 15(4): 248-52, 1998 Dec.
Artigo em Espanhol | MEDLINE | ID: mdl-18473511
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