INVARIANCE OF NEURONAL RESPONSES TO CHANGES IN THE SIZE OF VISUAL SHAPES MAPPED ALONG THE ANTERIOR-POSTERIOR EXTENT OF INFEROTEMPORAL AREA TE

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ESTAKY H.; MINAMI ITO

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Journal: Pathobiology Research Year:2002 | Volume:5 | Issue:1 Page(s): 1-8

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Title

INVARIANCE OF NEURONAL RESPONSES TO CHANGES IN THE SIZE OF VISUAL SHAPES MAPPED ALONG THE ANTERIOR-POSTERIOR EXTENT OF INFEROTEMPORAL AREA TE

Author(s)

ESTAKY H. | MINAMI ITO | Issue Writer Certificate

Keywords

VISIONQ4

OBJECT RECOGNITIONQ4

INFEROTEMPORAL CORTEXQ4

SIZE INVARIANCEQ4

MACAQUEQ4

Abstract

Purpose: Recognition of objects by our visual system is independent of the size of their retinal image. But the neural basis of size invariant object recogntion is not clear. Inferotemporal area TE is thought to be critical for invariant recognition of visual objects. Stimulus shape selectivity of neuronal responses is not significantly different between the posterior and anterior parts of TE, but invariance to other stimulus attributes may develop within TE. In the present study, we examined the correlation between the degree of invariance of TE cells to visual stimulus size changes and the anterior-posterior positions of the cells in anesthetized MACAQUE monkeys.Materials and Methods: For each cell the simplest stimulus that evoked the maximum response was first determined as the optimal stimulus. Then effects of changes in the size of the optimal shape on the cell responses were examined. The test range of size was at least 4 octaves.Results and Discussion: There was a positive correlation between the SIZE INVARIANCE (measured as the tuninng bandwidth at half the maximum response) and anterior posterior positions of the cell. Cells with wide size tuning were only found in the anterior TE while cells with relatively selective size responses were found through the anterior-posterior extent of TE. These findings suggest that the SIZE INVARIANCE develop within the neural circuits of anterior TE.

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References

INVARIANT RESPONSES OF INFEROTEMPORAL CORTICAL NEURONS TO THE VIEWING ANGLE OF OBJECTS

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APA: Copy

ESTAKY, H., & MINAMI, ITO. (2002). INVARIANCE OF NEURONAL RESPONSES TO CHANGES IN THE SIZE OF VISUAL SHAPES MAPPED ALONG THE ANTERIOR-POSTERIOR EXTENT OF INFEROTEMPORAL AREA TE. PATHOBIOLOGY RESEARCH (MODARES JOURNAL OF MEDICAL SCIENCES), 5(1), 1-8. SID. https://sid.ir/paper/81181/en

Vancouver: Copy

ESTAKY H., MINAMI ITO. INVARIANCE OF NEURONAL RESPONSES TO CHANGES IN THE SIZE OF VISUAL SHAPES MAPPED ALONG THE ANTERIOR-POSTERIOR EXTENT OF INFEROTEMPORAL AREA TE. PATHOBIOLOGY RESEARCH (MODARES JOURNAL OF MEDICAL SCIENCES)[Internet]. 2002;5(1):1-8. Available from: https://sid.ir/paper/81181/en

IEEE: Copy

H. ESTAKY, and ITO MINAMI, “INVARIANCE OF NEURONAL RESPONSES TO CHANGES IN THE SIZE OF VISUAL SHAPES MAPPED ALONG THE ANTERIOR-POSTERIOR EXTENT OF INFEROTEMPORAL AREA TE,” PATHOBIOLOGY RESEARCH (MODARES JOURNAL OF MEDICAL SCIENCES), vol. 5, no. 1, pp. 1–8, 2002, [Online]. Available: https://sid.ir/paper/81181/en

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