Five developmental experiments examine the role of context in visual search. (Author/JH)

This study examined the extent to which actions of objects influence children's taxonomic categorization. Two types of action-based categories were examined: those in which the objects share similar actions; and those in which the objects have dissimilar actions. Perceptual features of the objects were dissimilar for all objects used in the study.…

This paper explains the brief stimulus preference procedure (SPA), which is designed to identify efficiently the effective reinforcers for children with autism and other developmental disabilities. SPA involves presenting the child with four items he/she generally responds well to plus one new item. After allowing the child to pick his preferred…

The present experiment supports the hypothesis that the letter is the basic perceptual unit in letter, nonword, and word identification. (Author)

The separate effects of stimulus and response relative frequency were studied in two choice reaction time tasks containing many: 1 stimulus-response (S-R) mappings and 2 levels of S-R compatability. (Editor)

This present study is an attempt to investigate the extent to which knowledge of results in various forms (true, none, and false) may modify aesthetic judgment in "typical" (with respect to aesthetic judgment) students. (Author)

Kindergarten children were trained to make same-different judgments of either 2 or 4 standard figures under either 2 or 4 transformations before being transferred to a novel set of figures. (Editor)

Twenty subjects were pretrained with oral presentations of either three- or six-letter pseudowords exposed 0, 1, 5, 25, or 50 times. Then tachistoscopic duration thresholds were obtained for these pseudowords. (Editor)

The present research was designed to investigate the use of contextual information for facilitating word prediction in a visual task. (Author)

This paper, presented at the Occupational Stress Conference of the Center for Occupational Mental Health, Sept. 22, 1972, discusses the possibility of a relationship between psychosocial stimuli and stress-related disease. Using Selye's understanding of stress, the author views it in relation to non-specific diseases and suggests hypotheses…

Eight- and 9-year-olds (N=56) were studied to determine the degree to which counterconditioning could alter the positive or negative value acquired by a neutral stimulus in a conditioning situation. Dependent measures used to assess the effects of conditioning were found to have no independent effect on subsequent evaluations of the once-neutral…

Fifteen autistic and 15 normal Ss were trained to respond to a card containing two visual cues. The children were further tested on the single cues in order to assess whether one or both stimuli had acquired control over their responding. (Editor/RK)

Results indicated that individual differences in learning ability cannot be accounted for in terms of individual differences in short-term memory. (Authors)