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Full-Text Articles in Life Sciences

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 …


Volitional Control Of Attention And Brain Activation In Dual Task Performance, Sharlene Newman, Timothy Keller, Marcel Just Dec 2006

Volitional Control Of Attention And Brain Activation In Dual Task Performance, Sharlene Newman, Timothy Keller, Marcel Just

Marcel Adam Just

No abstract provided.


Inhibitory Control In High Functioning Autism: Decreased Activation And Underconnectivity In Inhibition Networks, Rajesh Kana, Timothy Keller, Nancy Minshew, Marcel Just Dec 2006

Inhibitory Control In High Functioning Autism: Decreased Activation And Underconnectivity In Inhibition Networks, Rajesh Kana, Timothy Keller, Nancy Minshew, Marcel Just

Marcel Adam Just

No abstract provided.


Brain Activation During Sentence Comprehension Among Good And Poor Readers, Ann Meyler, Timothy A. Keller, Vladimir L. Cherkassky, Donghoon Lee, Fumiko Hoeft, Susan Whitfield-Gabrieli, John D. E. Gabrieli, Marcel Adam Just Dec 2006

Brain Activation During Sentence Comprehension Among Good And Poor Readers, Ann Meyler, Timothy A. Keller, Vladimir L. Cherkassky, Donghoon Lee, Fumiko Hoeft, Susan Whitfield-Gabrieli, John D. E. Gabrieli, Marcel Adam Just

Marcel Adam Just

No abstract provided.


Individual Differences In Sentence Comprehension: A Functional Magnetic Resonance Imaging Investigation Of Syntactic And Lexical Processing Demands, Chantel S. Prat, Timothy A. Keller, Marcel Adam Just Dec 2006

Individual Differences In Sentence Comprehension: A Functional Magnetic Resonance Imaging Investigation Of Syntactic And Lexical Processing Demands, Chantel S. Prat, Timothy A. Keller, Marcel Adam Just

Marcel Adam Just

No abstract provided.


The Organization Of Thinking: What Functional Brain Imaging Reveals About The Neuroarchitecture Of Complex Cognition, Marcel Adam Just, Sashank Varma Dec 2006

The Organization Of Thinking: What Functional Brain Imaging Reveals About The Neuroarchitecture Of Complex Cognition, Marcel Adam Just, Sashank Varma

Marcel Adam Just

No abstract provided.


Lexical Ambiguity In Sentence Comprehension, Robert A. Mason, Marcel Adam Just Dec 2006

Lexical Ambiguity In Sentence Comprehension, Robert A. Mason, Marcel Adam Just

Marcel Adam Just

No abstract provided.


Functional And Anatomical Cortical Underconnectivity In Autism: Evidence From An Fmri Study Of An Executive Function Task And Corpus Callosum Morphometry, Marcel Adam Just, Vladimir L. Cherkassky, Timothy A. Keller, Rajesh K. Kana, Nancy J. Minshew Dec 2006

Functional And Anatomical Cortical Underconnectivity In Autism: Evidence From An Fmri Study Of An Executive Function Task And Corpus Callosum Morphometry, Marcel Adam Just, Vladimir L. Cherkassky, Timothy A. Keller, Rajesh K. Kana, Nancy J. Minshew

Marcel Adam Just

No abstract provided.


Prediction Of Children’S Reading Skills Using Behavioral, Functional, And Structural Neuroimaging Measures, Fumiko Hoeft, Takefumi Ueno, Allan L. Reiss, Ann Meyler, Susan Whitfield-Gabrieli, Gary H. Glover, Timothy A. Keller, Nobuhisa Kobayashi, Paul Mazaika, Booil Jo, Marcel Adam Just, John D. E. Gabrieli Dec 2006

Prediction Of Children’S Reading Skills Using Behavioral, Functional, And Structural Neuroimaging Measures, Fumiko Hoeft, Takefumi Ueno, Allan L. Reiss, Ann Meyler, Susan Whitfield-Gabrieli, Gary H. Glover, Timothy A. Keller, Nobuhisa Kobayashi, Paul Mazaika, Booil Jo, Marcel Adam Just, John D. E. Gabrieli

Marcel Adam Just

No abstract provided.


Planning To Reach For An Object Changes How The Reacher Perceives It., Peter Vishton, N J. Stephens, L A. Nelson, S E. Morra, Kaitlyn L. Brunick, Jennifer A. Stevens Dec 2006

Planning To Reach For An Object Changes How The Reacher Perceives It., Peter Vishton, N J. Stephens, L A. Nelson, S E. Morra, Kaitlyn L. Brunick, Jennifer A. Stevens

Peter Vishton

Three experiments assessed the influence of the Ebbinghaus illusion on size judgments that preceded verbal, grasp, or touch responses. Prior studies have found reduced effects of the illusion for the grip-scaling component of grasping, and these findings are commonly interpreted as evidence that different visual systems are employed for perceptual judgment and visually guided action. In the current experiments, the magnitude of the illusion was reduced by comparable amounts for grasping and for judgments that preceded grasping (Experiment 1). A similar effect was obtained prior to reaching to touch the targets (Experiment 2). The effect on verbal responses was apparent …


A Developmental Study Of The Structural Integrity Of White Matter In Autism, Timothy A. Keller, Rajesh K. Kana, Marcel Adam Just Dec 2006

A Developmental Study Of The Structural Integrity Of White Matter In Autism, Timothy A. Keller, Rajesh K. Kana, Marcel Adam Just

Marcel Adam Just

No abstract provided.