Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 2 of 2
Full-Text Articles in Entire DC Network
Tongue Movements In Feeding And Speech, Karen M. Hiiemae, Jeffrey B. Palmer
Tongue Movements In Feeding And Speech, Karen M. Hiiemae, Jeffrey B. Palmer
Biomedical and Chemical Engineering - All Scholarship
The position of the tongue relative to the upper and lower jaws is regulated in part by the position of the hyoid bone, which, with the anterior and posterior suprahyoid muscles, controls the angulation and length of the floor of the mouth on which the tongue body 'rides'. The instantaneous shape of the tongue is controlled by the 'extrinsic muscles ' acting in concert with the 'intrinsic ' muscles. Recent anatomical research in non-human mammals has shown that the intrinsic muscles can best be regarded as a 'laminated segmental system ' with tightly packed layers of the 'transverse', 'longitudinal', and …
Gamma Oscillations Correlate With Working Memory Load In Humans, Marc W. Howard, Daniel S. Rizzuto, Jeremy B. Caplan, Joseph R. Madsen, John Lisman
Gamma Oscillations Correlate With Working Memory Load In Humans, Marc W. Howard, Daniel S. Rizzuto, Jeremy B. Caplan, Joseph R. Madsen, John Lisman
Psychology - All Scholarship
Functional imaging of human cortex implicates a diverse network of brain regions supporting working memory—the capacity to hold and manipulate information for short periods of time. Although we are beginning to map out the brain networks supporting working memory, little is known about its physiological basis. We analyzed intracranial recordings from two epileptic patients as they performed a working memory task. Spectral analyses revealed that, in both patients, gamma (30-60 Hz) oscillations increased approximately linearly with memory load, tracking closely with memory load over the course of the trial. This constitutes the first evidence that gamma oscillations, widely implicated in …