Reliability, performance characteristics, construct validity, and an initial clinical application of a visual object learning test (VOLT)
Reliability, performance characteristics, construct validity, and an initial clinical application of a visual object learning test (VOLT)
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DOI：
10.1037/0894-4105.11.4.602
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发表时间：
1997-10-01
期刊：
影响因子：
2.4
通讯作者：
Gur, RE
中科院分区：
文献类型：
--
作者：
Glahn, DC;Gur, RC;Gur, RE
认知神经心理学对言语学习的研究已经引起了相当大的关注，而空间物体学习则更难研究。视觉学习数据的缺乏阻碍了试图澄清视觉学习是否具有特殊的神经基质的独特功能。在精神分裂症中，严重的语言学习障碍已经确立，但缺乏可比的视觉学习措施，阻碍了语言和视觉能力的分离。视觉对象学习测试（VOLT）的开发是为了检查视觉空间学习和记忆方面的方式类似于可用的口头测试。进行研究，以建立规范的性能特征，收敛和发散的效度。以及VOLT检测正常（通过性别和年龄）和病理变异（通过精神分裂症患者）个体差异的敏感性。结果表明，优秀的内部一致性，收敛和发散的效度，以及老化和病理的影响的敏感性。精神分裂症患者的学习和记忆力都受到损害。作者得出结论，精神分裂症的记忆障碍可能不是语言学习所特有的。
Whereas verbal learning has received considerable attention by cognitive neuropsychology, spatial object learning has been more resistant to study. The paucity of visual learning data has hampered attempts to clarify if visual learning has unique features with specialized neural substrates. In schizophrenia, severe verbal learning impairment has been established, but lack of comparable visual learning measures has thwarted the dissociation of verbal and visual abilities. The Visual Object Learning Test (VOLT) was developed to examine aspects of visual-spatial learning and memory in a manner analogous to available verbal tests. Studies were performed to establish normative performance characteristics, convergent and divergent validity. and the sensitivity of the VOLT to detection of individual differences in normal (through sex and age) and pathologic variability (through persons with schizophrenia). The results indicated excellent internal consistency, convergent and divergent validity, and sensitivity to the effects of aging and pathology. Persons with schizophrenia were impaired in both learning and retention. The authors conclude that memory impairment in schizophrenia may not be specific to verbal learning.