Biomaterial Database

The effect of visual feedback of the hand on the reaching and retrieval behavior of young infants. 1977

R E Lasky

Reaching and retrieving, with and without visual feedback of the hand, were observed in 50 infants ranging in age from 2 1/2 to 6 1/2 months. Failure, to see the hand did not completely inhibit reaching and retrieving, although reaching and retrieving were reduced in this situation for infants 5 1/2 months and older. It was hypothesized that infants of this age expected to see their hands within their visual fields. When this expectation was not met, the infant's ongoing behavior was disrupted.

UI	MeSH Term	Description	Entries
D007223	Infant	A child between 1 and 23 months of age.	Infants
D009068	Movement	The act, process, or result of passing from one place or position to another. It differs from LOCOMOTION in that locomotion is restricted to the passing of the whole body from one place to another, while movement encompasses both locomotion but also a change of the position of the whole body or any of its parts. Movement may be used with reference to humans, vertebrate and invertebrate animals, and microorganisms. Differentiate also from MOTOR ACTIVITY, movement associated with behavior.	Movements
D002657	Child Development	The continuous sequential physiological and psychological maturing of an individual from birth up to but not including ADOLESCENCE.	Infant Development,Development, Child,Development, Infant
D005246	Feedback	A mechanism of communication within a system in that the input signal generates an output response which returns to influence the continued activity or productivity of that system.	Feedbacks
D006225	Hand	The distal part of the arm beyond the wrist in humans and primates, that includes the palm, fingers, and thumb.	Hands
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000367	Age Factors	Age as a constituent element or influence contributing to the production of a result. It may be applicable to the cause or the effect of a circumstance. It is used with human or animal concepts but should be differentiated from AGING, a physiological process, and TIME FACTORS which refers only to the passage of time.	Age Reporting,Age Factor,Factor, Age,Factors, Age
D014110	Touch	Sensation of making physical contact with objects, animate or inanimate. Tactile stimuli are detected by MECHANORECEPTORS in the skin and mucous membranes.	Tactile Sense,Sense of Touch,Taction,Sense, Tactile,Senses, Tactile,Tactile Senses,Tactions,Touch Sense,Touch Senses
D014796	Visual Perception	The selecting and organizing of visual stimuli based on the individual's past experience.	Visual Processing,Perception, Visual,Processing, Visual