Responses of Human Medial Temporal Lobe Neurons Are Modulated by Stimulus Repetition

被引:34
|
作者
Pedreira, Carlos [1 ]
Mormann, Florian [2 ,3 ,4 ]
Kraskov, Alexander [2 ,5 ]
Cerf, Moran [2 ,3 ,4 ]
Fried, Itzhak [3 ,4 ,6 ,7 ]
Koch, Christof [2 ]
Quiroga, Rodrigo Quian [1 ,2 ,3 ,4 ]
机构
[1] Univ Leicester, Dept Engn, Leicester LE1 7RH, Leics, England
[2] CALTECH, Pasadena, CA 91125 USA
[3] Univ Calif Los Angeles, David Geffen Sch Med, Dept Neurosurg, Los Angeles, CA 90095 USA
[4] Univ Calif Los Angeles, Semel Inst Neurosci & Human Behav, Los Angeles, CA USA
[5] UCL, Inst Neurol, London, England
[6] Tel Aviv Med Ctr & Sch Med, Funct Neurosurg Unit, Tel Aviv, Israel
[7] Tel Aviv Univ, Sackler Fac Med, IL-69978 Tel Aviv, Israel
基金
英国工程与自然科学研究理事会; 英国医学研究理事会;
关键词
LONG-TERM-MEMORY; SINGLE NEURONS; RECOGNITION MEMORY; HUMAN HIPPOCAMPUS; HUMAN BRAIN; INFEROTEMPORAL CORTEX; VISUAL RECOGNITION; PERIRHINAL CORTEX; NEURAL MECHANISMS; AMYGDALA;
D O I
10.1152/jn.91323.2008
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Pedreira C, Mormann F, Kraskov A, Cerf M, Fried I, Koch C, Quiroga RQ. Responses of human medial temporal lobe neurons are modulated by stimulus repetition. J Neurophysiol 103: 97-107, 2010. First published October 28, 2009; doi:10.1152/jn.91323.2008. Recent studies have reported the presence of single neurons with strong responses to visual inputs in the human medial temporal lobe. Here we show how repeated stimulus presentation-photos of celebrities and familiar individuals, landmark buildings, animals, and objects-modulates the firing rate of these cells: a consistent decrease in the neural activity was registered as images were repeatedly shown during experimental sessions. The effect of repeated stimulus presentation was not the same for all medial temporal lobe areas. These findings are consistent with the view that medial temporal lobe neurons link visual percepts to declarative memory.
引用
收藏
页码:97 / 107
页数:11
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