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Cognitive Neuroscience Commons

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Full-Text Articles in Cognitive Neuroscience

Human Mst But Not Mt Responds To Tactile Stimulation, Michael S. Beauchamp, Nafi E. Yasar, Neel Kishan, Tony Ro Aug 2007

Human Mst But Not Mt Responds To Tactile Stimulation, Michael S. Beauchamp, Nafi E. Yasar, Neel Kishan, Tony Ro

Publications and Research

Previous reports of tactile responses in human visual area MT/V5 have used complex stimuli, such as a brush stroking the arm. These complex moving stimuli are likely to induce imagery of visual motion, which is known to be a powerful activator of MT. The area described as “MT” in previous reports consists of at least two distinct cortical areas, MT and MST. Using functional magnetic resonance imaging, we separately localized human MT and MST and measured their response to vibrotactile stimuli unlikely to induce imagery of visual motion. Strong vibrotactile responses were observed in MST but not in MT. Vibrotactile …


Maintenance Of Visual Stability In The Human Posterior Parietal Cortex, Erik Chang, Tony Ro Feb 2007

Maintenance Of Visual Stability In The Human Posterior Parietal Cortex, Erik Chang, Tony Ro

Publications and Research

Visual stability refers to our stable visuospatial perceptions despite the unstable visual input caused by saccades. Functional neuroimaging results, studies on patients with posterior parietal cortex (PPC) lesions, and single-unit recordings in the lateral intraparietal sulcus of primates indirectly suggest that the PPC might be a potential locus of visual stability through its involvement with spatial remapping. Here we directly explored the role of the PPC in visual stability by applying transcranial magnetic stimulation (TMS) while participants performed a perisaccadic displacement detection task. We show that TMS over the PPC but not a frontal control site alters sensitivity to displacement …


Neuroimaging, Entrapment, And The Predisposition To Crime, O. Carter Snead Jan 2007

Neuroimaging, Entrapment, And The Predisposition To Crime, O. Carter Snead

Journal Articles

Professor Tovino's (2007) paper is a welcome contribution to the emerging body of scholarship on the issues arising at the nexus of cognitive neuroscience (and neuroimaging in particular) and the law. It is a useful overview of the various ways in which neuroimaging might affect a wide array of legal questions. Though many of the issues that Tovino discusses are at present quite speculative (as she acknowledges), it is always wise to take advantage of the rare opportunity to reflect on the legal, ethical, and public policy implications of developments in biotechnology before they are upon us. In that spirit, …