Spontaneous and driven cortical activity: implications for computation

被引：152

作者：

Ringach, Dario L. ^{[1
]}

机构：

[1] Univ Calif Los Angeles, David Geffen Sch Med, Dept Neurobiol & Psychol, Jules Stein Eye Inst, Los Angeles, CA 90095 USA

来源：

CURRENT OPINION IN NEUROBIOLOGY | 2009年 / 19卷 / 04期

关键词：

PRIMARY VISUAL-CORTEX; FUNCTIONAL ARCHITECTURE; ORIENTATION SELECTIVITY; ONGOING ACTIVITY; NATURAL IMAGES; NEURONAL CORRELATION; BAYESIAN-INFERENCE; STRIATE CORTEX; DYNAMICS; RESPONSES;

D O I：

10.1016/j.conb.2009.07.005

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

The traditional view of spontaneous neural activity as 'noise' has been challenged by recent findings suggesting that: (a) spontaneous activity in cortical populations is highly structured in both space and time, (b) the spatio-temporal structure of spontaneous activity is linked to the underlying connectivity of the cortical network, (c) spontaneous cortical activity interacts with external stimulation to generate responses to the individual presentations of a stimulus, (d) network connectivity is shaped in part by the statistics of natural signals and (e) ongoing cortical activity represents a continuous top-down prediction/expectation signal that interacts with incoming input to generate an updated representation of the world. These results can be integrated to provide a new framework for the study of cortical computation.

引用

页码：439 / 444

页数：6

共 51 条

[1] COHERENT SPATIOTEMPORAL PATTERNS OF ONGOING ACTIVITY REVEALED BY REAL-TIME OPTICAL IMAGING COUPLED WITH SINGLE-UNIT RECORDING IN THE CAT VISUAL-CORTEX [J].

ARIELI, A ;

SHOHAM, D ;

HILDESHEIM, R ;

GRINVALD, A .

JOURNAL OF NEUROPHYSIOLOGY, 1995, 73 (05) :2072-2093

[2] Dynamics of ongoing activity: Explanation of the large variability in evoked cortical responses [J].

Arieli, A ;

Sterkin, A ;

Grinvald, A ;

Aertsen, A .

SCIENCE, 1996, 273 (5283) :1868-1871

[3] THEORY OF ORIENTATION TUNING IN VISUAL-CORTEX [J].

BENYISHAI, R ;

BAROR, RL ;

SOMPOLINSKY, H .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1995, 92 (09) :3844-3848

[4] Neural network model of the primary visual cortex: From functional architecture to lateral connectivity and back [J].

Blumenfeld, Barak ;

Bibitchkov, Dmitri ;

Tsodyks, Misha .

JOURNAL OF COMPUTATIONAL NEUROSCIENCE, 2006, 20 (02) :219-241

[5]

Bosking WH, 1997, J NEUROSCI, V17, P2112

[6] Predictions of a recurrent model of orientation selectivity [J].

Carandini, M ;

Ringach, DL .

VISION RESEARCH, 1997, 37 (21) :3061-3071

[7] On the local behavior of spaces of natural images [J].

Carlsson, Gunnar ;

Ishkhanov, Tigran ;

de Silva, Vin ;

Zornorodian, Afra .

INTERNATIONAL JOURNAL OF COMPUTER VISION, 2008, 76 (01) :1-12

[8] Optimal decoding of correlated neural population responses in the primate visual cortex [J].

Chen, Yuzhi ;

Geisler, Wilson S. ;

Seidemann, Eyal .

NATURE NEUROSCIENCE, 2006, 9 (11) :1412-1420

[9] Coding of the contrasts in natural images by visual cortex (V1) neurons: a Bayesian approach [J].

Chirimuuta, M ;

Clatworthy, PL ;

Tolhurst, DJ .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION, 2003, 20 (07) :1253-1260

[10] Attractor dynamics of network UP states in the neocortex [J].

Cossart, R ;

Aronov, D ;

Yuste, R .

NATURE, 2003, 423 (6937) :283-288

← 1 2 3 4 5 6 →