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Introduction/Aims
Various signs of selective involvement have been reported in amyotrophic lateral sclerosis (ALS). In this study, we describe two new signs, “weak shoulder” and “arm sparing” signs.
Methods
Subjects were retrospectively identified from our electrodiagnosis database. Medical Research Council scores of relevant muscles were evaluated. Weak shoulder was defined as the deltoid (Del)...
The rat has long been considered an important model system for studying neural mechanisms of auditory perception and learning, and particularly mechanisms involving auditory thalamo-cortical processing. However, the functional topography of the auditory thalamus, or medial geniculate body (MGB) has not yet been fully characterized in the rat, and the anatomically-defined features of field-specific,...
Interaction between bottom-up and top-down information processing between the auditory cortex (AC) and thalamus (medial geniculate body; MGB) has been considered important for auditory perception. In this study, we developed an experimental system consisting of a surface microelectrode array and depth microelectrode array to comprehensively investigate the thalamo-cortical system. The combined use...
Simultaneous characterization of layer-specific activation in the cortex and topographically organized activation in the thalamus brings substantial benefits to advance the understanding of the sensory/motor functions. We designed a silicon-probe microelectrode array to simultaneously characterize the primary auditory cortex (A1) and thalamus (medial geniculate body; MGB), which are aligned in the...
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