Gingras Benjamin, Braun Claude M J
a Department of Psychology , Université du Québec à Montréal , Montreal , QC , Canada.
Laterality. 2018 Jul;23(4):422-440. doi: 10.1080/1357650X.2017.1373780. Epub 2017 Sep 6.
Disparity of verbal and performance intelligence (VIQ, PIQ) on the Wechsler scales of intelligence is a conceptually cluttered and empirically weak measure of hemispheric specialization (HS). However, in the context of life span research, it is the only measure that can be exploited meta-analytically with the lesion method from prenatal life to late senescence. We assembled 1917 cases with a unilateral cortical focal brain lesion occurring at all ages and a post-lesion VIQ and PIQ. Lesion locus, volume and side were documented for each case, as well as age at lesion onset, age at first symptoms and age at the IQ test, presence/absence of epilepsy, lesion aetiology, gender, date of publication or of transfer of medical file. With and without covariate adjustment, HS was significant across the life span though its pattern changed. HS increased linearly and highly significantly until late senescence. Only in early adulthood did VIQ appear to vacate the right temporal lobe and occupy the left and PIQ vacate the left parietal lobe and occupy the right until late senescence. Biomaturational factors are more important in the ontogeny of material-specific HS over the whole life span than previously established.
韦氏智力量表上言语智力与操作智力（VIQ、PIQ）的差异是一种在概念上杂乱且实证上薄弱的半球特化（HS）测量方法。然而，在寿命研究的背景下，它是唯一可以通过从出生前到衰老后期的损伤方法进行元分析的测量方法。我们收集了1917例在各个年龄段发生单侧皮质局灶性脑损伤且有损伤后VIQ和PIQ数据的病例。记录了每个病例的损伤部位、体积和侧别，以及损伤发生时的年龄、首次出现症状时的年龄和进行智商测试时的年龄、是否存在癫痫、损伤病因、性别、发表日期或病历转移日期。无论是否进行协变量调整，HS在整个寿命期间都是显著的，尽管其模式有所变化。HS呈线性且高度显著地增加，直至衰老后期。仅在成年早期，VIQ似乎从右侧颞叶转移到左侧，而PIQ从左侧顶叶转移到右侧，直至衰老后期。在整个寿命期间，生物成熟因素在物质特异性HS的个体发生中比先前认为的更为重要。
