Environmental information is generally sent through several pathways that are parallel to the physically separated areas of the cerebral cortex, communicating with one another to produce the integration. A stereoscopic recognition is a typical example of the integration of two-dimensional (2D) images of a three-dimensional (3D) object projected in slightly different planes into a single-image having a 3D effect. Stereoscopic vision has been studied intensively at both the theoretical and

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... tional levels [1-3]. Since stereoscopic recognition is known to exhibit a diverse and moderately complicated phenomena, which are well suited for study at the neurophysiological level, human brain mapping involved in stereoscopic recognition have been of growing interest [4] [5] [6] [7] [8] . Lesion analyses in humans [9] [10] [11] indicate that the parietal cortex plays a major role with a suggestion of right-hemisphere dominance for stereoscopic recognition. For example, patients with anterior temporallobe lesions demonstrate impaired global stereopsis but intact local stereoacuity [9] . Patients with rightsided temporal lobe lesions perform significantly worse than those with left-sided lesions in perceiving depth when it is cued by ambiguous disparities [10] . Right hemisphere superiority has been suggested from works with normal human subjects [11] . Binocularly driven V3 complex cells project to the parieto-occipital area of the superior parietal lobule and lateral and posterior intraparietal areas in the lateral bank and fundus of the intraparietal sulcus in the cat [12] and