Stimulus-dependent modulations of correlated high-frequency oscillations in cat visual cortex

被引:73
作者
Brosch, M [1 ]
Bauer, R [1 ]
Eckhorn, R [1 ]
机构
[1] UNIV MARBURG, NEUROPHYS GRP, DEPT PHYS, D-35032 MARBURG, GERMANY
关键词
D O I
10.1093/cercor/7.1.70
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
The hypothesis that correlated neural activity is involved in the cortical representation of visual stimuli was examined by recording multi unit activity and local field potentials from neurons with non-overlapping receptive fields in areas 17 and 18. Using coherence functions, correlations of oscillatory patterns (35-100 Hz) of neural signals were investigated under three stimulus conditions: (i) a whole field grating or a long bar moving across bath receptive fields; (ii) masking the region between both receptive fields while stimulating the remaining visual field; and (iii) two separate stimuli simultaneously moving in opposite directions. Coherences of oscillations were found to he significantly higher in the first stimulus condition than in the other two conditions. Since different visual stimuli were reflected in the coherence of neural activity. we concluded that correlated neural activity is a potential candidate far coding of sensory information.
引用
收藏
页码:70 / 76
页数:7
相关论文
共 33 条
[1]  
Abeles M., 1982, LOCAL CIRCUITS ELECT
[2]   DYNAMICS OF NEURONAL FIRING CORRELATION - MODULATION OF EFFECTIVE CONNECTIVITY [J].
AERTSEN, AMHJ ;
GERSTEIN, GL ;
HABIB, MK ;
PALM, G .
JOURNAL OF NEUROPHYSIOLOGY, 1989, 61 (05) :900-917
[4]   ENCODING OF SOUND-SOURCE LOCATION AND MOVEMENT - ACTIVITY OF SINGLE NEURONS AND INTERACTIONS BETWEEN ADJACENT NEURONS IN THE MONKEY AUDITORY-CORTEX [J].
AHISSAR, M ;
AHISSAR, E ;
BERGMAN, H ;
VAADIA, E .
JOURNAL OF NEUROPHYSIOLOGY, 1992, 67 (01) :203-215
[5]  
[Anonymous], SYNERGETICS BRAIN
[6]  
Barlow H B, 1972, Perception, V1, P371, DOI 10.1068/p010371
[7]   NEURAL MECHANISM OF BINOCULAR DEPTH DISCRIMINATION [J].
BARLOW, HB ;
BLAKEMOR.C ;
PETTIGRE.JD .
JOURNAL OF PHYSIOLOGY-LONDON, 1967, 193 (02) :327-&
[8]   DIFFERENT RULES OF SPATIAL SUMMATION FROM BEYOND THE RECEPTIVE-FIELD FOR SPIKE RATES AND OSCILLATION AMPLITUDES IN CAT VISUAL-CORTEX [J].
BAUER, R ;
BROSCH, M ;
ECKHORN, R .
BRAIN RESEARCH, 1995, 669 (02) :291-297
[9]   SYNCHRONOUS HIGH-FREQUENCY OSCILLATIONS IN CAT AREA-18 [J].
BROSCH, M ;
BAUER, R ;
ECKHORN, R .
EUROPEAN JOURNAL OF NEUROSCIENCE, 1995, 7 (01) :86-95
[10]  
BROSCH M, 1993, SOC NEUR ABSTR, V19