The accuracy of memory for the position of a spot in a plain visual field was measured. The variables manipulated were: duration of presentation; length of retention period; presence or absence of distracting activity. (Author)

This study investigated the effects of sex of perceiver, race of expressor, and mode of presentation of stimuli (Audio/visual, visual/only, audio/only, and still pictures) on perception of emotion. Emotions are most accurately perceived in audio/visual; females were superior in perception of emotions. (JB)

Infants of 6 months and older can be said to have discriminated between different orientations of the same form. (Author)

Sixty mentally retarded children (mean chronological age 19.4 years, mean mental age 5.2 years) were analyzed on their discrimination of 116 colored action pictures. (Author)

A six-month-old infant who can remove a transparent cloth from his hand when it is covered after he grasps a toy may not be able to remove an opaque cover. Alternative interpretations of the phenomenon, that is, degree of bimanual coordination and focus of attention, are discussed. (Author/MB)

It is concluded from the study that the three tests tested are not interchangeable despite the fact that they appear to measure similar perceptual functions. All three tests should be combined in a battery if used for diagnostic purposes. (Author)

Investigated was whether partially seeing children see the Snellen E, printed in selected colored inks on various colored backgrounds, at different distances in terms of initial recognition and best focus. (Author)