Watson C G, Jacobs L, Kucala T
J Clin Psychol. 1979 Oct;35(4):740-3. doi: 10.1002/1097-4679(197910)35:4<740::aid-jclp2270350409>3.0.co;2-g.
Tested the hypotheses that anhedonia afflicts only a minority of schizophrenics and is bimodally distributed among them by comparing the Anhedonia scale distributions of schizophrenic and psychiatric control samples (N = 90). Only 45% of the schizophrenics produced scores higher than those characteristic of the controls. While the schizophrenics' distribution appeared to be bimodal, its irregularity precluded a definitive assessment of the bimodality hypothesis. The correlation between age and Anehodina was positive for anhedonics but not for non-anhedonic schizpohrenics or controls; these findings suggest that anhedonia is a mildly progressive disorder among those schizophrenics who experience it.
通过比较精神分裂症患者样本和精神科对照样本(N = 90)的快感缺乏量表分布,检验了以下假设:快感缺乏仅折磨少数精神分裂症患者,且在他们中间呈双峰分布。只有45%的精神分裂症患者得分高于对照组的特征分数。虽然精神分裂症患者的分布似乎是双峰的,但其不规则性妨碍了对双峰假设的明确评估。快感缺乏者的年龄与快感缺乏量表得分之间呈正相关,而非快感缺乏的精神分裂症患者或对照组则不然;这些发现表明,在经历快感缺乏的精神分裂症患者中,快感缺乏是一种轻度进行性疾病。