Angwin Anthony J, Chenery Helen J, Copland David A, Cardell Elizabeth A, Murdoch Bruce E, Ingram John C L
Centre for Research in Language Processing and Linguistics, Division of Speech Pathology, The University of Queensland, Brisbane 4072, Australia.
J Psycholinguist Res. 2006 Jan;35(1):101-17. doi: 10.1007/s10936-005-9006-3.
To investigate the stability of trace reactivation in healthy older adults, 22 older volunteers with no significant neurological history participated in a cross-modal priming task. Whilst both object relative center embedded (ORC) and object relative right branching (ORR) sentences were employed, working memory load was reduced by limiting the number of words separating the antecedent from the gap for both sentence types. Analysis of the results did not reveal any significant trace reactivation for the ORC or ORR sentences. The results did reveal, however, a positive correlation between age and semantic priming at the pre-gap position and a negative correlation between age and semantic priming at the gap position for ORC sentences. In contrast, there was no correlation between age and priming effects for the ORR sentences. These results indicated that trace reactivation may be sensitive to a variety of age related factors, including lexical activation and working memory. The implications of these results for sentence processing in the older population are discussed.
为了研究健康老年人中痕迹再激活的稳定性，22名无重大神经病史的老年志愿者参与了一项跨模态启动任务。虽然使用了宾语关系中心嵌入（ORC）句和宾语关系右分支（ORR）句，但通过限制两种句子类型中先行词与空缺之间的单词数量来降低工作记忆负荷。结果分析未发现ORC句或ORR句有任何显著的痕迹再激活。然而，结果确实显示，年龄与ORC句空缺前位置的语义启动呈正相关，与ORC句空缺位置的语义启动呈负相关。相比之下，ORR句的年龄与启动效应之间没有相关性。这些结果表明，痕迹再激活可能对多种与年龄相关的因素敏感，包括词汇激活和工作记忆。讨论了这些结果对老年人群句子处理的影响。
