Corballis M C, Ogden J A
University of Auckland, New Zealand.
Neuropsychologia. 1988;26(4):565-73. doi: 10.1016/0028-3932(88)90113-3.
Three commissurotomized and two left-hemispherectomized subjects were tested on spoken report of sequences of three dichotic pairs of digits. With instruction to report only one digit from each pair, there was an overall advantage to the ear contralateral to the hemisphere mediating speech, but report of ipsilateral-ear digits ranged from 40 to 100%. In commissurotomized subjects, the more extreme ipsilateral suppression under instructions to report all digits may be due to failure to gain access to unattended information stored in the right hemisphere, rather than to suppression of the ipsilateral pathway. However one commissurotmized patient did appear to have access to right-hemisphere items, the result either of subcortical transfer or of external cross-cueing. The hemispherectomized subjects seemed able to store both attended and unattended information in the same hemisphere.
对三名接受连合部切开术和两名接受左半球切除术的受试者进行了测试，内容是关于三对双耳分听数字序列的口头报告。在要求每对数字中只报告一个数字的情况下，对介导言语的半球对侧耳朵存在总体优势，但对同侧耳朵数字的报告范围为40%至100%。在接受连合部切开术的受试者中，在要求报告所有数字的指示下，更极端的同侧抑制可能是由于无法获取存储在右半球的未被注意的信息，而不是由于对同侧通路的抑制。然而，一名接受连合部切开术的患者似乎能够获取右半球的项目，这是皮层下转移或外部交叉提示的结果。接受半球切除术的受试者似乎能够在同一半球中存储被注意和未被注意的信息。
