Abstract
Vocal emblems, such as shh and brr, are speech sounds that have linguistic and nonlinguistic features; thus, it is unclear how they are processed in the brain. Five adult dextral individuals with left-brain damage and moderate-severe Wernicke's aphasia, five adult dextral individuals with right-brain damage, and five Controls participated in two tasks: (1) matching vocal emblems to photographs ('picture task') and (2) matching vocal emblems to verbal translations ('phrase task'). Cross-group statistical analyses on items on which the Controls performed at ceiling revealed lower accuracy by the group with left-brain damage (than by Controls) on both tasks, and lower accuracy by the group with right-brain damage (than by Controls) on the picture task. Additionally, the group with left-brain damage performed significantly less accurately than the group with right-brain damage on the phrase task only. Findings suggest that comprehension of vocal emblems recruits more left- than right-hemisphere processing.
References
Jan 1, 1975·Journal of Neurology, Neurosurgery, and Psychiatry·K M HeilmanR T Watson
Nov 1, 1975·Journal of Psychiatric Research·M F FolsteinP R McHugh
Nov 1, 1990·Brain and Language·D A RobinH Damasio
Apr 1, 1994·Brain : a Journal of Neurology·A SchniderA Schnider-Klaus
Dec 28, 1999·Brain Research. Brain Research Reviews·D Van Lancker, J L Cummings
Oct 16, 2002·Brain Research Bulletin·Patrick C M Wong
Mar 5, 2003·Brain : a Journal of Neurology·Ayşe Pinar SayginElizabeth Bates
Sep 8, 2004·Neuropsychologia·Helen L Gallagher, Christopher D Frith
Apr 18, 2006·NeuroImage·Teruo HashimotoShozo Kojima
Mar 29, 2008·Journal of Cognitive Neuroscience·Kimberly J Montgomery, James V Haxby
May 17, 2008·Experimental Brain Research·Kristine M KnutsonJordan Grafman
Sep 23, 2008·Trends in Cognitive Sciences·Mairéad MacSweeneyBencie Woll
Oct 29, 2008·Neuroreport·Susanne DietrichHermann Ackermann
Nov 20, 2009·Proceedings of the National Academy of Sciences of the United States of America·Jiang XuAllen R Braun