對於精神分裂症患者注意力歷程缺失現象的探討，過去大多集中在
對注意力歷程本身機制的探究；但在結果上一直找不到令人滿意的解釋．
然而在心理學的研究中發現， 個體在進入注意力歷程對刺激做進一步處
理之前，有一個前注意力歷程會先對視野中所現刺激做整體性的處理；之
後才能使個體經由選擇將注意力集中在所欲處理的訊息上，此即注意力歷
程二階段論． 本研究即以注意力歷程二階段論為起點，利用兩個以擬
似叫色作業進行的實驗去區辨精神分裂症患者在注意力表現的異常，究竟
導因於那一階段的運作失常．本研究的兩個實驗均是以伴隨分心項同時呈
現的 Stroop 色字為實驗刺激，藉由操弄目標項（ 即Stroop色字）刺激
類型及分心項與目標項間關係，觀察精神分裂症患者與正常在前注意力歷
程運作上有何差異，並期能據此瞭解精神分裂症患者注意力歷程缺失的可
能原因． 綜合兩實驗所得結果，精神分裂症患者在前注意力歷程的運
作上與正常人並無差別；但在進入注意力歷程對刺激做進一步處理時，抑
制機制的運作失常（運作不足或運作過度）為其注意力失常的可能原因之
一，但仍無法對本研究的結果作一完整的說明．此外，由研究結果中，也
可推測精神分裂症患者在對目標項進行細部分析時，其持續性的注意力也
有異於正常人；這部份仍有待進一步的研究． / There is a wealth of literature associating schizophrenia
withdisorders of attention. This study bases on the two-stage
approach of visual selective attention. The pre-
attentiveparallel processcomputes how different each object is
from each of the other objectswithin a particular stimulus
dimension. Attention automatically drawto the location having
the highest activation, implying that the subjects select
location automatically and are irrespective of their intention.
Two Stroop tasks used to differentiate schizophrenics and
nornalic'sattentional processes, and try to figure out which
stageis the caution of schizophrenic's dysfunctional attention.
As the result, schizophrenic is not different with normalics on
pre-attentiveprocess, but do have something problem
onattentional process when theywhen they have to inhibit some
information. It'sstill not a conclution,because the deficit of
inhibition can not explain the results perfectly.
| Identifer | oai:union.ndltd.org:CHENGCHI/B2002001726 |
| Creators | 杜玉禎, Tu, Yu-Chen |
| Publisher | 國立政治大學 |
| Source Sets | National Chengchi University Libraries |
| Language | 中文 |
| Detected Language | English |
| Type | text |
| Rights | Copyright © nccu library on behalf of the copyright holders |
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