Search PubMed⌕ Search

Biomedical subjects

R Diamond

Publications and source records attributed to R Diamond.

At least 55 records · Page 3Linked to original sources
PubMed1979

Eye movements initiate visual-motor development in the cat.

Visually naïve kittens turn their eyes toward visual targets but lack other visual-motor coordinations. Light-reared animals were able to mediate guided behaviors with an immobilized eye, but animals with the eye immobilized before initial exposure to a lighted environment were not. Eye movement is implied to play an essential role in visual-motor development.

Animals↗
PubMed1978

Upright and inverted faces: the right hemisphere knows the difference.

The existence of a right hemisphere capacity, specific to upright faces was investigated. Upright and inverted faces, equally complex as patterns, were presented under lateralized tachistoscopic conditions to two groups of normal adult subjects. A significant orientation by visual field advantage was found. While there was a highly significant left visual field advantage for upright faces, the visual field difference for inverted faces failed to reach significane. This pattern of results supports the hypothesis that the right hemisphere is specialized for the perception of faces in particular, in addition to its specialization for the perception of visuospatial patterns in general.

Adult↗
PubMed1977

From piecemeal to configurational representation of faces.

Unlike older children and adults, children of less than about 10 years of age remember photographs of faces presented upside down almost as well as those shown upright and are easily fooled by simple disguises. The development at age 10 of the ability to encode orientation-specific configurational aspects of a face may reflect completion of certain maturational changes in the right cerebral hemisphere.

Aging↗
PubMed1974

Assignment of the human gene for hexose-1-phosphate uridylyltransferase to chromosome 3.

Mouse-human hybrid clones were tested for the presence of human hexose-1-phosphate uridylyl-transferase (EC 2.7.7.12;UDPglucose:alpha-D-galactose-1-phosphate uridylyltransferase). Two criteria, starch gel electrophoresis and double-immunodiffusion against a human transferase-specific antibody, were used to identify human enzyme in the hybrid clones. Seventeen of 33 hybrid clones analyzed were found to contain human transferase by both criteria. Karyological analysis of the hybrid clones showed concordant segregation of human transferase with human chromosome 3. Human galactokinase was asyntenic with human transferase. We thus assign this gene to human chromosome 3.

Animals↗