Attentional Focus and Shift between Hierarchical Stimuli in Patients with Schizophrenia
| Autor: | Kuang-Ching Yang, 楊廣慶 |
|---|---|
| Rok vydání: | 2004 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 92 The purpose of this study was to explore the attentional focus and shift between different attention window sizes in patients with schizophrenia. In the part on attentional focus, in order to understand engagement speed to different attention window sizes in patients with schizophrenia, attentional cues with different sizes were used to guide subjects' attention instead of the verbal instruction used in previous studies. The second purpose of this study was to explore attentional shift, or disengagement, between different attention window sizes in patients with schizophrenia. METHOD: Subjects were 25 patients with schizophrenia and 25 non-patient volunteers. Cue validity (valid cue vs. invalid cue) and target level (global target vs. local target) were within-subject variables. ANOVA was used to analyze the subjects' reaction time. RESULTS: Both patients with schizophrenia and non-patient volunteers showed the same attentional focus pattern, global processing advantage. They both showed faster reaction time when disengaging from the local level then engaging to the global target than vice versa. DISCUSSION: Based on the results of this study, it appeared that both patients with schizophrenia and non-patient volunteers showed the same pattern of reflexive attentional focus and shift. Differences in the speed of disengagement could explaine the interference effect documented in the literature. This study contributed to understanding attentional shift between different sizes of attentional window. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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