Rapid Communication

Impact of Vividness of Visual Imagery and verbal Fluency on Semantic Effects During Speech Production

[Speaker] Fang, Yanhong:1
[Co-author] Yin, Guanhai:1, Zhang, Jijia:2
1:Jinggangshan University (China (People's Republic of China)), 2:Renmin University of China (China (People's Republic of China))

To investigate the impact of vividness of visual imagery and verbal fluency on semantic effects during speech production, this study explored the difference of four groups (high vividness and high fluency, high vividness and low fluency, low vividness and high fluency, low vividness and low fluency) in naming pictures either in the context of categorical related distractors or in the context of categorical unrelated ones. Results indicated that relative to unrelated distractors, related ones slowed the pictures naming, inducing semantic interference effects (SIE). Vividness of visual imagery would affect the size of SIE, in that SIE was greater for low vividness groups than for high vividness groups. The role of verbal fluency is similar to vividness of visual imagery and SIE is larger for low fluency groups than for high fluency groups. These findings were discussed in terms of working memory and central executive system.
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