The dynamics of object-selective activation correlate with recognition performance in humans

被引：472

作者：

Grill-Spector, K

Kushnir, T

Hendler, T

Malach, R

机构：

[1] Weizmann Inst Sci, Dept Comp Sci, IL-76100 Rehovot, Israel

[2] Weizmann Inst Sci, Dept Neurobiol, IL-76100 Rehovot, Israel

[3] Chaim Sheba Med Ctr, Dept Diagnost Imaging, IL-52621 Tel Hashomer, Israel

[4] Tel Aviv Sourasky Med Ctr, Wohl Inst Adv Imaging, Lab Funct Imaging, Tel Aviv, Israel

来源：

NATURE NEUROSCIENCE | 2000年 / 3卷 / 08期

关键词：

D O I：

10.1038/77754

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

To investigate the relationship between perceptual awareness and brain activity, we measured both recognition performance and fMRI signal from object-related areas in human cortex while images were presented briefly using a masking protocol. Our results suggest that recognition performance is correlated with selective activation in object areas. Selective activation was correlated to object naming when exposure duration was varied from 20 to 500 milliseconds. Subjects' recognition during identical visual stimulation could be enhanced by training, which also increased the fMRI signal. Overall, the correlation between recognition performance and fMRI signal was highest in occipitotemporal object areas (the lateral occipital complex).

引用

页码：837 / 843

页数：7

共 49 条

[1] An area within human ventral cortex sensitive to "building" stimuli: Evidence and implications [J].

Aguirre, GK ;

Zarahn, E ;

D'Esposito, M .

NEURON, 1998, 21 (02) :373-383

[2] HUMAN EXTRASTRIATE VISUAL-CORTEX AND THE PERCEPTION OF FACES, WORDS, NUMBERS, AND COLORS [J].

ALLISON, T ;

MCCARTHY, G ;

NOBRE, A ;

PUCE, A ;

BELGER, A .

CEREBRAL CORTEX, 1994, 4 (05) :544-554

[3] Localizing the cortical region mediating visual awareness of object identity [J].

Bar, M ;

Biederman, I .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1999, 96 (04) :1790-1793

[4]

Breitmeyer B.G., 1984, VISUAL MASKING INTEG

[5] Functional-anatomic correlates of object priming in humans revealed by rapid presentation event-related fMRI [J].

Buckner, RL ;

Goodman, J ;

Burock, M ;

Rotte, M ;

Koutstaal, W ;

Schacter, D ;

Rosen, B ;

Dale, AM .

NEURON, 1998, 20 (02) :285-296

[6] Functional neuroimaging studies of encoding, priming, and explicit memory retrieval [J].

Buckner, RL ;

Koutstaal, W .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1998, 95 (03) :891-898

[7] Attribute-based neural substrates in temporal cortex for perceiving and knowing about objects [J].

Chao, LL ;

Haxby, JV ;

Martin, A .

NATURE NEUROSCIENCE, 1999, 2 (10) :913-919

[8] CATEGORY-RELATED RECOGNITION DEFECTS AS A CLUE TO THE NEURAL SUBSTRATES OF KNOWLEDGE [J].

DAMASIO, AR .

TRENDS IN NEUROSCIENCES, 1990, 13 (03) :95-98

[9]

DAMASIO AR, 1990, ANNU REV NEUROSCI, V13, P89, DOI 10.1146/annurev.neuro.13.1.89

[10] Mapping striate and extrastriate visual areas in human cerebral cortex [J].

DeYoe, EA ;

Carman, GJ ;

Bandettini, P ;

Glickman, S ;

Wieser, J ;

Cox, R ;

Miller, D ;

Neitz, J .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1996, 93 (06) :2382-2386

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