Combined effects of vestibular stimulation and gaze direction on orientation of sound lateralization. Export

@article{citeulike:4890300, abstract = {Dichotic sound discrimination is influenced by either visual or vestibular stimulation. This study investigated the effect of simultaneous gaze and vestibular inputs on dichotic sound discrimination. The subjects (n=12) closed their eyes or gazed at a red target light placed at a distance of 50cm from their eyes, and the ITD discrimination test was simultaneously performed in either the supine or in the right lateral decubitus position, in which gravitational linear acceleration causes utricular stimulation in the lower ear. In the ITD discrimination tests, the amplitudes of saw-tooth waves in the supine position with straight gaze were significantly different from those in the lateral decubitus position with downward or upward gaze. The saw-tooth waves in the lateral decubitus position with eye closed significantly shifted toward the upper ear compared to that in the supine position with eye closed. The saw-tooth waves in the lateral decubitus position with upward and with downward gaze shifted significantly toward the upper and lower ears, respectively, as compared to that in the supine position with straight gaze. We concluded that a sound image resulting from dichotic stimulation may be more dominantly influenced by the direction of eccentric gaze than by utricular stimulation that occurs due to gravitational linear acceleration.}, author = {Suzuki, M. and Inoue, R. and Kashio, A. and Saito, Y. and Nakanishi, W. and Yamada, C. and Takanami, T.}, citeulike-article-id = {4890300}, citeulike-linkout-0 = {http://dx.doi.org/10.1016/j.neulet.2008.03.011}, citeulike-linkout-1 = {http://view.ncbi.nlm.nih.gov/pubmed/18378078}, citeulike-linkout-2 = {http://www.hubmed.org/display.cgi?uids=18378078}, day = {9}, doi = {10.1016/j.neulet.2008.03.011}, issn = {0304-3940}, journal = {Neuroscience letters}, keywords = {direction, effect, gaze, lateralization, orientation, sound, stimulation, vestibular}, month = {May}, number = {2}, pages = {158--162}, posted-at = {2009-06-18 10:39:34}, priority = {2}, title = {Combined effects of vestibular stimulation and gaze direction on orientation of sound lateralization.}, url = {http://dx.doi.org/10.1016/j.neulet.2008.03.011}, volume = {436}, year = {2008} }

TY - JOUR ID - citeulike:4890300 L3 - citeulike-article-id:4890300 N2 - Dichotic sound discrimination is influenced by either visual or vestibular stimulation. This study investigated the effect of simultaneous gaze and vestibular inputs on dichotic sound discrimination. The subjects (n=12) closed their eyes or gazed at a red target light placed at a distance of 50cm from their eyes, and the ITD discrimination test was simultaneously performed in either the supine or in the right lateral decubitus position, in which gravitational linear acceleration causes utricular stimulation in the lower ear. In the ITD discrimination tests, the amplitudes of saw-tooth waves in the supine position with straight gaze were significantly different from those in the lateral decubitus position with downward or upward gaze. The saw-tooth waves in the lateral decubitus position with eye closed significantly shifted toward the upper ear compared to that in the supine position with eye closed. The saw-tooth waves in the lateral decubitus position with upward and with downward gaze shifted significantly toward the upper and lower ears, respectively, as compared to that in the supine position with straight gaze. We concluded that a sound image resulting from dichotic stimulation may be more dominantly influenced by the direction of eccentric gaze than by utricular stimulation that occurs due to gravitational linear acceleration. IS - 2 JF - Neuroscience letters SN - 0304-3940 EP - 162 TI - Combined effects of vestibular stimulation and gaze direction on orientation of sound lateralization. VL - 436 SP - 158 KW - direction KW - effect KW - gaze KW - lateralization KW - orientation KW - sound KW - stimulation KW - vestibular AU - Suzuki, M AU - Inoue, R AU - Kashio, A AU - Saito, Y AU - Nakanishi, W AU - Yamada, C AU - Takanami, T PY - 2008/05/09/ UR - http://dx.doi.org/10.1016/j.neulet.2008.03.011 ER -