Disappearance of biased visual attention in young infants: remediation of tonic neck reflex or maturation of visual asymmetry?

Lange-Kuettner, Christiane (2018) Disappearance of biased visual attention in young infants: remediation of tonic neck reflex or maturation of visual asymmetry? Perceptual and Motor Skills, 125 (5). pp. 839-865. ISSN 0031-5125

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Official URL: https://doi.org/10.1177/0031512518786131

Abstract / Description

Typically, infants younger than four months fail to attend to the left side of their spatial field, most likely because of an innate asymmetrical tonic neck reflex (ATNR). In a critical transition, by four months of age, infants begin to reach and develop depth perception; and, by five months of age, they tend to monitor the entire spatial field. However, this developmental transition can be delayed. Moreover, there always is a residual right sided spatial bias under cognitive load, a phenomenon that may occur as well among adult stroke patients. While causative factors of biased visual attention in both infants and brain-injured adults may vary, mechanisms of remediation may be similar. This literature review addresses whether the infant’s emergence of attention toward a full visual spatial field and the associated shift from monocular to binocular vision occurs because of (a) increased left side reaching loosens the rarely mentioned high muscle tension ATNR, or (b) maturational resolution of a visual asymmetry in motion perception. More research is needed to investigate the origins of the infants’ visual control system and factors involved in its development, especially because Alzheimer and dementia patients may also show primitive two-dimensional vision and deficits in perceiving objects-in-motion that seem to mirror earlier infant visual perception.

Item Type: Article
Uncontrolled Keywords: depth perception development, dynamic systems theory, infant reaching, visual asymmetry, visual neglect
Subjects: 100 Philosophy & psychology > 150 Psychology
Department: School of Social Sciences (to June 2021)
School of Social Sciences and Professions
Depositing User: Chris Lange-Kuettner
Date Deposited: 10 Sep 2018 13:21
Last Modified: 08 Jan 2021 10:10
URI: https://repository.londonmet.ac.uk/id/eprint/2989

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