Amos Andrew
State Head Injury Unit, University of Western Australia, Hospital Avenue, Nedlands, Perth, 6907 WA, Australia.
Brain Inj. 2002 May;16(5):407-13. doi: 10.1080/02699050110104435.
This study was designed to evaluate the remediating effects of two types of aid on a test of switching attention administered to patients with acquired brain injury (ABI). Based on the separation of cognitive functions suggested by a neural network model, it was hypothesized that external inhibition of obsolete rules, and increased salience of stimuli, would differentially improve the WCST performance of participants with ABI.
The Wisconsin Card Sorting Test (WCST) performance of 24 patients with ABI assigned to three treatment groups (no treatment, external inhibition, increased stimulus salience) was compared to normal controls.
External inhibition of learned rules reduced perseverative errors, while increased stimuli salience reduced random errors, committed by patients with ABI.
The pattern of results supports the separation of functions in switching attention suggested by a neural network model, and establishes minimal aids necessary for remediating deficits associated with ABI.
本研究旨在评估两种辅助方式对后天性脑损伤（ABI）患者进行注意力转换测试的修复效果。基于神经网络模型所提出的认知功能分离，研究假设对过时规则的外部抑制以及刺激显著性的增加，将分别改善ABI患者的威斯康星卡片分类测验（WCST）表现。
将24名ABI患者分为三个治疗组（无治疗、外部抑制、增加刺激显著性），比较他们在WCST上的表现与正常对照组。
对所学规则的外部抑制减少了ABI患者的持续性错误，而增加刺激显著性则减少了随机错误。
结果模式支持神经网络模型所提出的注意力转换功能分离，并确定了修复与ABI相关缺陷所需的最低限度辅助方式。
