Zaidel D W
Department of Psychology, University of California, Los Angeles.
Neuropsychologia. 1987;25(3):487-95. doi: 10.1016/0028-3932(87)90073-x.
Effects of presence versus absence of semantic organization in pictorial scenes were investigated in a memory hemi-field tachistoscopic paradigm in order to assess the hemispheric status of long-term semantic memory (LTSM). Forty normal subjects were asked to remember a series of pictorial scenes which were organized either in common configurations or were unorganized with respect to real-world configurations. Memory for these scenes was measured by hemi-field presentations of detail probes and whole scene probes. The results showed that there were no differences between the two visual fields in accuracy scores. Latency of positive responses showed that memory for the common/organized scenes was better in the left (LVF) than in the right visual field (RVF) and a dissociation between the two types of pictorial organization was present only in the LVF, with the slower latencies for unorganized scenes. The effect of probe-type was also different in the two visual fields: detail and whole scene probes were undifferentiated within the LVF but were differentiated in the RVF, with whole scenes remembered more quickly. The findings are discussed in terms of asymmetries in storage/retrieval of schemata in LTSM.
为了评估长期语义记忆（LTSM）的半球状态，在记忆半视野速示范式中研究了图片场景中语义组织存在与否的影响。40名正常受试者被要求记住一系列图片场景，这些场景要么按照常见配置进行组织，要么相对于现实世界的配置是无组织的。通过半视野呈现细节探针和整个场景探针来测量对这些场景的记忆。结果表明，两个视野在准确性得分上没有差异。积极反应的潜伏期表明，对常见/有组织场景的记忆在左视野（LVF）比右视野（RVF）更好，并且两种类型的图片组织之间的分离仅出现在左视野中，无组织场景的潜伏期较慢。探针类型的影响在两个视野中也不同：细节和整个场景探针在左视野内没有差异，但在右视野中有差异，整个场景被更快地记住。根据LTSM中模式存储/检索的不对称性对这些发现进行了讨论。
