One possible explanation of the differences between blind and sighted persons (McKinney, 1964; Attneave & Benson, 1969; Warren, 1970) is that vision is the primary spatial reference, and inputs from other modalities are fitted to a visual map. Several criticisms of this theory are adduced. (Editor/RK)

Schoolboys from the Ivory Coast and from Kenya were tested on a simple task intended to detect the effect of implicit-shape constancy. (Editor)

In a replication and extension of an experiment by Eagle, Wolitzky & Klein (1966), subjects wrote brief stories describing an Object Relations Test card following exposure to a 7 x 7 letter matrix in which were embedded either neutral words or emotive words. (Editor)

The relationship between perceptual sensitivity and stimulus emotionality was investigated employing a methodology aimed to preclude the intervention of response variables. (Editor)

Children between 4 and 10 years participated in a study of their ability to discriminate pictorially represented depth. Stimuli comprised pictures in which depth cues were systematically manipulated.

Eight, ten, and twelve year old children were tested on a novel procedure involving the successive presentation of standard and comparision stimuli. Two hypotheses were evaluated: one dealing with memory effects, and the other with children's pretesting of choice responses in spatial information processing. (Editor/RK)

The aim of this study was to examine pattern difficulty as a general factor influencing orientation errors, and to explore psychological differentiation and task perception as variables accounting for cross-cultural differences. Samples of 30 boys and 30 girls in Ghana and Scotland were tested. (Editor)

Attempts to determine how the ability of African secondary students to understand pictures three-dimensionally changes, as the number of different types of depth cue increases in carefully stages. Also investigates the existence of interactions involving the different types of picture and differences in amount of formal training which people have…

The purpose of the experiment was to ascertain whether the duration of the spiral illusion could be extended by a 'learning procedure' which would distinguish a longer-term learning effect from short-term adaptive changes due to inhibition. (Author)

A free association technique was used to investigate the semantic structure of three forms of encoding: verbal, visual imagery, and kinesthetic imagery. Discusses the relevance of these findings to creativity and the concept of semantic memory. (Editor/RK)

Three evaluations (general preference, balance, and dynamics) were made for paintings presented simultaneously in artist-created and mirror-image views. For short (5 second) exposures, results showed consistent selection over diverse contents of paintings with a left-to-right figure sequence. Implications for perception and aesthetics are…