Neural correlates of sign language production revealed by electrocorticography

The neural correlates of sign versus word production.

The production of sign language involves two large articulators (the hands) moving through space and contacting the body. In contrast, speech production requires small movements of the tongue and vocal tract with no observable spatial contrasts. Nonetheless, both language types exhibit a sublexical layer of structure with similar properties (e.g., segments, syllables, feature hierarchies). To i...

Neural correlates of the LSD experience revealed by multimodal neuroimaging.

Lysergic acid diethylamide (LSD) is the prototypical psychedelic drug, but its effects on the human brain have never been studied before with modern neuroimaging. Here, three complementary neuroimaging techniques: arterial spin labeling (ASL), blood oxygen level-dependent (BOLD) measures, and magnetoencephalography (MEG), implemented during resting state conditions, revealed marked changes in b...

Production of prominence in Japanese sign language

In sign language research, technically it has been possible to investigate prominence around a unit of sign movements that realizes strong visual impression. Based on the researches of speech prominence, this study proposes techniques to delimit a sequential hand-movement into small units, and investigates the prominence by the comparisons of physical properties on each unit between emphasized ...

Recognition of Sign Language Using Neural Networks

Neural Organization of Spoken Language Revealed by Lesion-Symptom Mapping

Studies of patients with acquired cognitive deficits following brain damage and studies using contemporary neuroimaging techniques form two distinct streams of research on the neural basis of cognition. In this study, we combine high-quality structural neuroimaging analysis techniques and extensive behavioural assessment of patients with persistent acquired language deficits to study the neural...