Show Reference: "Ectosylvian Visual Area of the Cat: Location, Retinotopic Organization, and Connections"

Ectosylvian Visual Area of the Cat: Location, Retinotopic Organization, and Connections The Journal of Comparative Neurology, Vol. 261, No. 2. (8 July 1987), pp. 277-294, doi:10.1002/cne.902610209 by Carl R. Olson, Ann M. Graybiel
    abstract = {We have mapped out the ectosylvian visual area ({EVA}) of the cat in a series of single- and multiunit recording studies. {EVA} occupies 10–20 mm2 of cortex at the posterior end of the horizontal limb of the anterior ectosylvian sulcus. {EVA} borders on somatosensory cortex anteriorly, auditory cortex posteriorly, and nonresponsive cortex laterally. {EVA} exhibits limited retinotopic organization, as indicated by the fact that receptive fields shift gradually with tangential travel of the microelectrode through cortex. However, a point-to-point representation of the complete visual hemifield is not present. We have characterized the afferent and efferent connections of {EVA} by placing retrograde and anterograde tracer deposits in {EVA} and in other cortical visual areas. The strongest transcortical fiber projection to {EVA} arises in the lateral suprasylvian visual areas. Area 20, the granular insula, and perirhinal cortex provide additional sparse afferents. The projection from lateral suprasylvian cortex to {EVA} arises predominantly in layer 3 and terminates in layer 4. {EVA} projects reciprocally to all cortical areas from which it receives input. The projection from {EVA} to the lateral suprasylvian areas arises predominantly in layers 5 and 6 and terminates in layer 1. {EVA} is linked reciprocally to a thalamic zone encompassing the lateromedial-suprageniculate complex and the adjacent medial subdivision of the latero-posterior nucleus. We conclude that {EVA} is an exclusively visual area confined to the anterior ectosylvian sulcus and bounded by nonvisual cortex. {EVA} is distinguished from other visual areas by its physical isolation from those areas, by its lack of consistent global retinotopic organization, and by its placement at the end of a chain of areas through which information flows outward from the primary visual cortex.},
    author = {Olson, Carl R. and Graybiel, Ann M.},
    citeulike-article-id = {13379149},
    citeulike-linkout-0 = {},
    day = {8},
    doi = {10.1002/cne.902610209},
    journal = {The Journal of Comparative Neurology},
    keywords = {aes, biology, receptive-fields, visual},
    month = jul,
    number = {2},
    pages = {277--294},
    posted-at = {2014-10-01 08:54:58},
    priority = {2},
    publisher = {Wiley-Liss},
    title = {Ectosylvian Visual Area of the Cat: Location, Retinotopic Organization, and Connections},
    url = {},
    volume = {261},
    year = {1987}

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AEV is partially, but not consistently, retinotopic.

Receptive fields in AEV tend to be smaller for cells with RF centers at the center of the visual field than for those with RF centers in the periphery.

AEV is not exclusively (but mostly) visual.

RFs in AEV are relatively large.