Zesiger P, Pegna A, Rilliet B
Faculty of Psychology and Educational Sciences, University of Geneva, Switzerland.
Cortex. 1994 Dec;30(4):673-83. doi: 10.1016/s0010-9452(13)80243-2.
This paper reports the case of an English speaking, fully left-handed patient (DS) with a left unilateral writing deficit occurring after a subarachnoid hemorrhage due to the rupture of an anterior communicating aneurysm. DS's performance in spelling and in right-handed writing was entirely preserved while his left-handed writing was characterized by the production of errors which could generally be spontaneously self-corrected. Errors produced with lower-case letters differed from the ones produced with upper-case letters: The former usually corresponded to letter substitutions which were characterized by a high degree of physical similarity between the target letter and the one produced. The latter tended to result in the production of aborted letters. This impairment is discussed in the context of cognitive models of writing. It is suggested that graphic motor patterns for lower-case letters and for upper-case letters are different in nature and consequently that production processes may also differ.
本文报告了一例能说英语、完全左利手的患者（DS），该患者因前交通动脉瘤破裂导致蛛网膜下腔出血后出现左侧单侧书写缺陷。DS在拼写和右手书写方面的表现完全保留，而其左手书写的特点是产生的错误通常可以自发自我纠正。小写字母产生的错误与大写字母产生的错误不同：前者通常对应字母替换，其特点是目标字母与所产生字母之间具有高度的物理相似性。后者往往导致产生中断的字母。在书写认知模型的背景下讨论了这种损伤。有人认为，小写字母和大写字母的图形运动模式本质上是不同的，因此产生过程也可能不同。
