Department of Psychology, Louisiana StateUniversity, 206 Audubon Hall, Baton Rouge, LA 70803, USA.
J Pers Disord. 2011 Aug;25(4):478-91. doi: 10.1521/pedi.2011.25.4.478.
Constricted affect (CA) is a cardinal negative symptom of schizophrenia-spectrum disorders. It is unclear whether behaviorally-defined CA occurs in individuals with schizotypy-those with the personality organization reflective of schizophrenia liability. Moreover, it is unclear whether CA contributes to real world dysfunction in this population. The present study employed computerized prosodic analysis of natural speech procured during a laboratory procedure. Subjects were 89 individuals with psychometrically-defined schizotypy and 26 controls. Groups did not differ in any of the prosody measures examined here. Within the schizotypy group, increased prosodic expression was associated with positive schizotypy traits while decreased prosodic expression was associated with negative schizotypy traits. Prosodic deficits were significantly associated with reduced prosocial behaviors (e.g., talking with friends) but were not associated with subjective social satisfaction. Prosodic deficits characterize a subset of individuals with schizotypy who show a schizoid-like reduction in social behaviors without a concomitant reduction in social satisfaction.
情感受限是精神分裂症谱系障碍的一个主要阴性症状。目前尚不清楚行为定义的情感受限是否会出现在具有精神分裂症倾向的精神分裂症特质个体中，即具有反映精神分裂症易感性的人格组织的个体中。此外，目前尚不清楚情感受限是否会导致该人群在现实生活中出现功能障碍。本研究采用计算机化的韵律分析方法，对实验室程序中采集的自然语言进行分析。研究对象为 89 名具有精神分裂症特质的个体和 26 名对照者。在本研究中检查的所有韵律测量指标中，两组之间均无差异。在精神分裂症特质组中，增加的韵律表达与阳性精神分裂症特质相关，而减少的韵律表达与阴性精神分裂症特质相关。韵律缺陷与减少的亲社会行为（例如，与朋友交谈）显著相关，但与主观社会满意度无关。韵律缺陷是具有精神分裂症特质个体的一部分特征，这些个体表现出类似精神分裂症的社交行为减少，而社交满意度没有相应降低。
