Investigated the development and fragmentation of categories over chronological and mental age without the requisite of free recall. Kindergarten, fourth grade, ninth grade and retarded students labeled and categorized chromatic slides of picturable objects. (GO)

Seventy two first, second and third grade boys and girls were administered seriation problems involving different combinations of shape and color variation. Success rates and latency scores were influenced by shape variation, but not by color variation or grade level. (BD)

Investigates the mechanisms of human visual perception by using computer generated displays. Introduces several experiments and demonstrations. (YP)

Investigated the influence of melodic activity (ornamented and plain) on students' perception of tempo. Third, fifth, and sixth graders indicated whether the tempo of the second example in each paired comparison item was faster, slower, or stayed the same. Suggests that tempo perception lessons be preceded by instruction on melodic activity and…

The effects of pictorial advance organizers presented before reading a passage on the retention of passage information were examined for 48 children in grade 5. Those given an integrated pictorial advance organizer recalled more than did others on both immediate and delayed tests of recall. (SLD)

Presents a study that investigated the significance of the octave-equivalence assumption, an essential assumption to the notion of "pitch class" and the analysis and pedagogy of all music in the Western tradition. Discusses development and organization of experimental items and describes the method of presentation. (GEA)

Two groups of right-handed young adults with and without Down Syndrome (N=24) performed a rapid unimanual finger-tapping task under two conditions: alone and while sound-shadowing (repeating) single-syllable, high frequency words. Results provided no evidence for reverse (right hemisphere) lateralization of speech in individuals with Down…

Examined the stability of two aspects of infant visual attention derived from the paired-comparison procedure in infants tested at 6, 7, and 8 months of age. The two aspects were novelty preference and exposure time. Suggests that both novelty and exposure-time scores reflect moderately stable but independent characteristics of infant behavior.…

Notes two trends in the development of basal-related software and describes the Scott, Foresman Reading Courseware and the Ginn Reading Software. (JC)

Conductive hearing losses were simulated in 12 subjects aged 19-35 and performance was compared with normal hearing performance. Digit dichotic performance was affected when test intensities were within 8 dB of the "knees" (95 percent correct point) of monotic performance intensity functions, but not when test intensities were 12 dB…

Six autistic boys (ages 3-11) were presented with a receptive labeling task in several settings which varied in familiarity of person, room, and task stimuli. Results indicated that the greatest amount of echolalia occurred in settings in which an unfamiliar person presented unfamiliar task stimuli. (Author)

Auditory and visual memory span were examined with 13 Down Syndrome and 15 other trainable mentally retarded young adults. Although all subjects demonstrated relatively poor auditory memory span, Down Syndrome subjects were especially poor at long-term memory access for visual stimulus identification and short-term storage and processing of…

Six retarded young adults were trained to select grocery items using picture cards as cues and to reject either (1) maximally different negative examples or (2) minimally different negative examples. Training with minimally different negative examples was functionally related to improved rejection of nontrained negative items in a nontrained…

Examined whether reading disabled children differed in the utilization of rules in a paired associate learning task. In two experiments, children were assigned to one of three conditions: (a)nonrule, (b)consistent rule, or (c)inconsistent rule. When present, the rule was based on semantic opposites. (Author/NH)