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Spectral and orientation specificity of single cells in foveal striate cortex of the vervet monkey, Cercopithecus aethiops


, : Spectral and orientation specificity of single cells in foveal striate cortex of the vervet monkey, Cercopithecus aethiops. Journal of Physiology 268(1): 1-20

1. The spectral sensitivity, orientation specificity and inhibitory surround of seventy-three cells were studied in the vervet monkey. The eye was in the dark or illuminated with steady white or spectral light. The cells were in the striate cortex corresponding to the foveal representation. Nearly all the cells gave on- or on/off-responses.2. More than a third of the cells (41%) responded over a narrow spectral band, in the blue, green, yellow or red section. Three quarters of them were orientation specific with flanking inhibitory surround and half of these were of the ;stopped-end' variety as well. The effect of the wave-length of the background indicated that only a half were activated by such excitatory-inhibitory colour pairs as have been described in the geniculate nucleus.3. A third of the cells (36%) responded to most colours but with the greatest response to green, yellow or red. Less than half were orientation specific. Unlike the narrowband cells, the response decreased with the intensity of the light. Two thirds were activated by the excitatory-inhibitory colour pairs that have been described in the geniculate nucleus.4. In both groups of cells the wave-length of the spectral peak could be different when the stimuli were weak compared with when they were strong.5. One quarter of the cells (23%) gave on/off-responses to all spectral flashes; half were not orientation specific. The difference in orientation specificity between narrow- and broadband cells is significant (P < 0.01).

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Accession: 006459514

PMID: 406386

DOI: 10.1113/jphysiol.1977.sp011843

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Tavares, Sergio, 1960: Geobotanic studies in Rio Grande do Norte. Stud-ies have been carried out in the municipalities of Natal and Nisia Flor-esta, following earlier studies by A. Ducke and B. Pickel. Some geographic data are presented for the area, emphasizing hydrographic details. The major part of the work i...

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Dhand, R.; De, A.; Gupta, N.; Jaswal, S.; Kohli, K.K.; Malik, S.K.; Ganguly, N.K., 1988: Cellular composition of bronchoalveolar lavage fluid in patients with pulmonary tuberculosis. In an attempt to accurately quantify the inflammatory and immune effector cells recovered by bronchoalveolar lavage (BAL), subsegmental BAL was performed in 30 patients with pulmonary tuberculosis and 6 non tuberculous controls. The volume of BAL...

Lestrovaia, N.N.; Lebedeva, Z.D.; Volkova, I.M.; Aren, A.K.; Bukbarde, V.U., 1983: Purification of lipase of microbial origin by silochrome chromatography. The possibility of purifying lipase from Geotrichum asteroides by chromatography with a modified silochrome used as sorbent has been explored. The paper presents a scheme of adsorption and subsequent desorption of lipase from octylsilochrome which...

Shirahata, Nobuyuki, 1995: Vascular dementia Clinical usage of nuclear medicine. Ochi, H , Shimomi, S , Tsumura, M , Okamura, T International Congress Series; Brain, heart and tumor imaging: Updated PET and MRI 61-70

Atlas, J.; Pico, M.; Alvarinas, C.; Salinas, R.; Maniez, E.; Sanchez, M.; Yabo, R., 1967: Evaluation of the nutritional state of urban conscripts of the 1945 class in the Buenos Aires military district. The aims of the survey and the methods to be used are described. Conscripts, who came from an urban environment in the Buenos Aires military district, were classed by the military medical examina-tion board as completely fit, relatively fit, of di...

Bussler, W., 1983: Plant diagnosis as a basis to evaluate the nutritional status of plants. Proceedings of Re ic of China Federal Re ic of Germany Seminar on Plant Nutrition and Soil Scince sponsored by National Science Council ROC Deutsche Forschungsgemeinschaft FRG edited by Kun huang Houng: 8

Evans D.M.; Rogers T.B., 1988: Guanine nucleotides stimulate neurosecretion from permeabilized pc12 cells. Journal of General Physiology 92(6): 13A-14A

Brandtzaeg P., 1971: Human secretory immuno globulins part 6 association of free secretory piece with serum immuno globulin a in vitro. Immunology 21(2): 323-332

Blakemore W.F., 1979: Quantitative studies on re myelinated nerve fibers in the central nervous system. Neuropathology & Applied Neurobiology: 322