Janse Esther
Utrecht Institute of Linguistics OTS, Utrecht, the Netherlands.
Clin Linguist Phon. 2009 Mar;23(3):196-207. doi: 10.1080/02699200802394989.
This study investigates neighbourhood density effects on lexical decision performance (both accuracy and response times) of aphasic patients. Given earlier results on lexical activation and deactivation in Broca's and Wernicke's aphasia, the prediction was that smaller neighbourhood density effects would be found for Broca's aphasic patients, compared to age-matched non-brain-damaged control participants, whereas enlarged density effects were expected for Wernicke's aphasic patients. The results showed density effects for all three groups of listeners, and overall differences in performance between groups, but no significant interaction between neighbourhood density and listener group. Several factors are discussed to account for the present results.
本研究调查了邻里密度对失语症患者词汇判断表现（准确性和反应时间）的影响。鉴于之前关于布洛卡失语症和韦尼克失语症中词汇激活和去激活的研究结果，预测是与年龄匹配的非脑损伤对照参与者相比，布洛卡失语症患者的邻里密度效应较小，而韦尼克失语症患者预计会有更大的密度效应。结果显示，所有三组听众都存在密度效应，且各组之间在表现上存在总体差异，但邻里密度与听众组之间没有显著的交互作用。讨论了几个因素来解释当前的结果。
