NDLI: Grasp Reflex Strength from Right and Left Hands is Associated with Ph Stressor from the Umbilical Arterial Blood in Human Newborns: Handedness and Sex-Related Differences

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Grasp Reflex Strength from Right and Left Hands is Associated with Ph Stressor from the Umbilical Arterial Blood in Human Newborns: Handedness and Sex-Related Differences

Content Provider	Scilit
Author	Tan, Üner Zor, Nevin Kücüközkan, Tuncay Akcay, Fatih Yigitoglu, Ramazan Bakan, Ebubekir Kutlu, Necip
Copyright Year	1993
Description	Journal: International Journal of Neuroscience Grasp reflex and its asymmetry was studied in relation to pH of the umbilical blood in human newborns, to examine whether the degree of acidity in fetal blood (birth stress) is associated with cerebral laterality. Low pH values were considered as an index for birth stress. Grasp-reflex strength was found to be directly related to pH in total sample. There were sex-related differences. Namely, this correlation was true only for female newborns, not for males. Right minus left grasp-reflex strength linearly increased with pH, i.e., low pH values were associated with left-hand dominance, but only in males. The grasp-reflex asymmetry was not related to pH in females. It was concluded that blood pH may be associated with motor asymmetry and motor development in human newborns, but show sex-related differences; female brain seemed to be more sensitive to pH changes than male brain. The results partly supported the Bakan's hypothesis that birth stress may be associated with left-handedness.
Related Links	http://www.tandfonline.com/doi/pdf/10.3109/00207459309024103
Ending Page	156
Page Count	8
Starting Page	149
ISSN	00207454
e-ISSN	15435245
DOI	10.3109/00207459309024103
Journal	International Journal of Neuroscience
Issue Number	3-4
Volume Number	72
Language	English
Publisher	Informa UK Limited
Publisher Date	1993-01-01
Access Restriction	Open
Subject Keyword	Journal: International Journal of Neuroscience Cell Tissue Engineering
Content Type	Text
Subject	Neuroscience Medicine

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