Role of inferior temporal cortex in interhemispheric transfer

Seacord, Lynne; Gross, Charles G.; Mishkin, Mortimer

doi:10.1016/0006-8993(79)90821-7

Cited by 25 publications

(14 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…What is the function of such large receptive fields? Because IT neurons respond to a stimulus thoughout a receptive field much larger than the stimulus, it has been suggested that IT neurons mediate the perceptual equivalence of visual objects across retinal translation (Gross and Mishkin, 1977;Seacord et al, 1979). In addition, in the present study we found neurons that responded to stimuli regardless of changes in stimulus size within the receptive field; this has been confirmed for a much larger sample of IT neurons in a separate study (Schwartz et al, 1983).…”

Section: Discussionsupporting

confidence: 76%

Stimulus-selective properties of inferior temporal neurons in the macaque

Desimone¹,

Albright²,

Gross³

et al. 1984

J. Neurosci.

1,309

851

View full text Add to dashboard Cite

Previous studies have reported that some neurons in the inferior temporal (IT) cortex respond selectively to highly specific complex objects. In the present study, we conducted the first systematic survey of the responses of IT neurons to both simple stimuli, such as edges and bars, and highly complex stimuli, such as models of flowers, snakes, hands, and faces. If a neuron responded to any of these stimuli, we attempted to isolate the critical stimulus features underlying the response. We found that many of the responsive neurons responded well to virtually every stimulus tested. The remaining, stimulus-selective cells were often selective along the dimensions of shape, color, or texture of a stimulus, and this selectivity was maintained throughout a large receptive field. Although most IT neurons do not appear to be "detectors" for complex objects, we did find a separate population of cells that responded selectively to faces. The responses of these cells were dependent on the configuration of specific face features, and their selectivity was maintained over changes in stimulus size and position. A particularly high incidence of such cells was found deep in the superior temporal sulcus. These results indicate that there may be specialized mechanisms for the analysis of faces in IT cortex.

show abstract

Section: Discussionsupporting

confidence: 76%

Stimulus-selective properties of inferior temporal neurons in the macaque

Desimone¹,

Albright²,

Gross³

et al. 1984

J. Neurosci.

1,309

851

View full text Add to dashboard Cite

show abstract

“…The retinulposition of a stimulus appears to be irrelevant to IT representations (Gross & Mishkin, 1977;Seacord, Gross, & Mishkin, 1979). Monkeys with bilateral, but not unilateral, IT lesions show impaired interhemispheric transfer of a learned visual discrimination (i.e., impaired generalization across the two hemifields).…”

Section: Positionmentioning

confidence: 99%

“…Perhaps the most widely accepted of these is that IT provides perceptual constang, that is, the ability to see that two inputs with different retinal positions, orientations, and sizes arise from the same physical object (Desimone et al, 1985;Gross, 1978;Gross & Mishkin, 1977;Holmes & Gross, 1984a,b;Iwai, 1985;Laursen, 1982;Seacord et al, 1979). On this view, the discrimination deficit following IT lesions is due to the fact that successive presentations of the target stimulus have slightly different retinal projections, and the monkey lacks the mechanism that normally indicates that these stimuli represent the same object.…”

Section: Theories Of Inferotemporal Function Perceptual Constancymentioning

confidence: 99%

Visual Object Representation: Interpreting Neurophysiological Data within a Computational Framework

Plaut

Farah

1990

Journal of Cognitive Neuroscience

View full text Add to dashboard Cite

Abstractrn Significant progress has been made in understanding vision by combining computational and neuroscientific constraints. However, for the most part these integrative approaches have been limited to low-level visual processing. Recent advances in our understanding of high-level vision in the two separate disciplines warrant an attempt to relate and integrate these results to extend our understanding of vision through object representation and recognition. This paper is an attempt to contribute to this goal, by using a computational framework arising out of computer vision research to organize and interpret human and primate neurophysiology and neuropsychology. rn

show abstract

“…Lesion studies of the effects of transection of the corpus callosum and anterior commissure in the monkey have shown that the ability to activate TE neurons from the ipsilateral hemifield depends on these crossing fibers, suggesting that spatial generalization across hemifields requires intact commissural connections (Gross, Bender, & Mishkin, 1977;Rocha-Miranda, Bender, Gross, & Mishkin, 1975). This is supported by behavioral experiments in split-brain monkeys (Seacord, Gross, & Mishkin, 1979) and cats (Berlucchi, Buchtel, Marzi, Mascetti, & Simoni, 1978), which demonstrated a lack of spatial generalization of skilled visual discriminations from one hemifield to the other.…”

mentioning

confidence: 91%

Impairments in Spatial Generalization of Visual Skills After V4 and TEO Lesions in Macaques (Macaca mulatta).

Weerd¹,

Desimone²,

Ungerleider³

2003

Behavioral Neuroscience

View full text Add to dashboard Cite

The authors tested the spatial generalization of shape and color discriminations in 2 monkeys, in which 3 visual field quadrants were affected, respectively, by lesions in area V4, TEO, or both areas combined. The fourth quadrant served as a normal control. The monkeys were trained to discriminate stimuli presented in a standard location in each quadrant, followed by tests of discrimination performance in new locations in the same quadrant. In the quadrant affected by the V4 + TEO lesion, the authors found temporary but striking deficits in spatial generalization of shape and color discriminations over small distances, suggesting a contribution of areas V4 and TEO to short-range spatial generalization of visual skills.

show abstract

Role of inferior temporal cortex in interhemispheric transfer

Cited by 25 publications

References 11 publications

Stimulus-selective properties of inferior temporal neurons in the macaque

Stimulus-selective properties of inferior temporal neurons in the macaque

Visual Object Representation: Interpreting Neurophysiological Data within a Computational Framework

Impairments in Spatial Generalization of Visual Skills After V4 and TEO Lesions in Macaques (Macaca mulatta).

Contact Info

Product

Resources

About