A model for the genetics of handedness.
نویسندگان
چکیده
Experimental data and theoretical work on the inheritance of handedness and cerebral dominance are reviewed. A two-gene, four-allele model, one locus pertaining to left or right hemispheric dominance and the other to contralateral or ipsilateral hand control relative to the dominant hemisphere, is constructed. It is in excellent agreement with all quantitative information regarding this problem. Refinements designed to explain relevant qualitative facts are proposed and discussed.
منابع مشابه
Handedness: a neurogenetic shift of perspective.
Handedness is the single most studied aspect of human brain asymmetries. For long it has been thought to be a monogenic trait that can produce an asymmetrical shift of cerebral mechanisms, thereby producing right handedness. Nevertheless, a single gene explaining a sufficient amount of phenotypic variance has not been identified. The results of several recent studies using advanced molecular ge...
متن کاملمقایسه شیوع دست‌‌برتری در مقاطع تحصیلی دانشگاهی: تفاوت‌های جنسیتی و آثار علمی- پژوهشی
Abstract In order to compare the handedness occurrence in academic sections (B.A., M.A., Ph.D. faculty members) a sample of 683 people (519 female, 164 male) with the mean age of 26/7 and the age range of 18-70 , from two universities (a state university and a non-state university) with the three academic levels: Tehran`s Payam-e-Noor universities (Tehran Payam-e-Noor centre, higher education ...
متن کاملAssessment of brain laterality among Iranian addicts and smokers
Previous research supported that the prevalence of addiction is related to brain laterality. Brain laterality is often determined by left/right handedness and this phenomenon is considered as an important factor in addiction prevalence. The present study attempts to examine the relationships between left/right handedness with addiction and smoking on Iranian population. In this study, 2000 male...
متن کاملAssessment of brain laterality among Iranian addicts and smokers
Previous research supported that the prevalence of addiction is related to brain laterality. Brain laterality is often determined by left/right handedness and this phenomenon is considered as an important factor in addiction prevalence. The present study attempts to examine the relationships between left/right handedness with addiction and smoking on Iranian population. In this study, 2000 male...
متن کاملGenetic and environmental influences on the handedness and footedness in Japanese twin children.
The purpose of this study was to examine the genetic contribution to handedness and footedness in childhood using one of the largest available databases of Japanese twins. The participants were 1131 twin pairs, 1057 males and 1205 females, of 11 or 12 years of age (6th grade of secondary school in the Japanese education system). All data were gathered by questionnaire. The prevalence of left (n...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Genetics
دوره 72 1 شماره
صفحات -
تاریخ انتشار 1972