Twenty-four children (8 to 9 years old) who reversed letters were randomly assigned to either the control or experimental group (15 additional minutes of laterality training per day for 4 weeks). Analysis of results demonstrated that training did not significantly affect the number of reversals. (Author/CL)

The results suggested that on a perceptual task not related to reading or mathematics, the addition of input from tactile and auditory sensory modalities does not improve learning performance and, in certain combinations, actually interferes with such performance. (Author/SBH)

Changes in magnitude of Muller-Lyer illusion lines between forks and arrows as a function of age were studied in 48 hyperactive and 48 nonhyperactive boys (six-nine years old).

To determine the intertest reliability of the Beery Developmental Test of Visual Motor Integration (VMI) and the Bender Visual Motor Gestalt Test (BGT), 64 six to nine year olds were administered both tests.

The EEG biofeedback training produced baseline effects in the presumably dysfunctional left hemisphere and had an impact on arousal in task, suggesting remedial potential for the possible hemispheric arousal deficts in learning disabilities. Training the right hemisphere toward higher arousal and the left hemisphere toward lower arousal resulted…

The results suggested that profoundly retarded children do show habituation and dishabituation to visual stimuli and are actively storing and processing information about their perceptual world. (Author/DLS)

Ss displaying initial subnormal nystagmic functioning responded to therapy with increases in duration, while other Ss displayed decreases; these effects were more apparent after long therapy. (Author/DLS)

The processing of a transitivity task by 7-, 9-, 11-, and 13-year-old learning disabled children was studied. All Ss, regardless of age, received highest scores on tasks involving linguistic input. There was no evidence of a developmental shift from spatial into linguistic reasoning. (Author/SEW)

Male and female retarded readers (N=80) at two age levels (6.5 to 8.5 years and 10.5 to 12.5 years) did not differ significantly on a number of perceptual, visual-motor, linguistic, and concept formation abilities. (Author)

Among the findings were that there was no significant difference in performance between Down's syndrome, other mentally handicapped, and normal Ss matched for mental age, when extraneous developmental factors were eliminated; and that there was no relationship between mental age and visual perception in any group. (DLS)

It was found, among other things, that rural Ss performed significantly below their mental ages more frequently than urban Ss; and that between the chronological ages of 10 to 14 years, while urban Ss appeared to perform as expected from mental ages, a significant number of rural Ss performed below expectations. (Author/DLS)

The discrimination of minimally paired speech sounds by seven severely retarded children (mean age 3.2 years, and mean IQ 38.4) was compared with the discrimination performance of eight normally developing 7-month-old infants. (Author/PHR)

The results suggested that all Ss used similar temporal frames of reference, but that hearing impaired Ss demonstrated developmental lags. (Author/DLS)

The cerebral laterality of children with various configurations of verbal-performance discrepancies was inferred with an objective measure of lateral preference using Verbal and Performance IQ scores of the WISC-R. Results were interpreted as lending support to the notion of competition antagonism between cortical hemispheres and a possible…

An investigation of the disturbing nature of constructs underlying learning disabilities (LD) and the reliability of factors of LD characteristics within an ecological framework used 150 advanced undergraduate special education students as Ss. (Author/PHR)