Concept labeling and use of complex solutions is facilitated by instructions to verbalize concurrently with initial stimulus presentation. Older subjects who delay verbalization until after task completion are less effective in using relevant stimulus dimensions for solution and more closely approximate the performance of younger concurrent…

The goal was to psychophysiologically differentiate covert linguistic behavioral patterns when one silently answers YES" versus NO" to questions. (Authors)

The article presents experiences of the author that lead him to conclude that instructions of a test item sometimes inhibit mathematical activity. The low-ability student is often unable to translate written instructions into action because he is not familiar with acceptable methods. Student reaction to the term proof" receives greatest…

Children aged 6 to 13 years were given verbal and nonverbal fluency tasks and block design subtests of the Wechsler Intelligence Scale for Children-Revised. Results, providing normative data, showed that fluency tasks are age-, but not sex-dependent, and are modestly correlated to one another. (Author/CM)

Two visual search experiments suggest that: cerebral lateralization of cognitive functions results from differences in sensorimotor resolution capacities of the hemispheres; both hemispheres can process verbal and visuospatial information analytically and holistically; and respective hemispheric competence is a function of the level of…

Human performance on verbal and spatial matching tasks was assessed every 15 minutes for eight hours. Significant 90- to 100-minute oscillations were observed for each task. It was also found that increases in performance on one task are accompanied by decreases on the other. (HM)

Comparing the effectiveness of four methods for training young children (4-4.5 years) in the skills of visual discrimination necessary to letter knowledge acquisition, this study indicates that training in oral description of critical cues of letters contributes to superior achievement in learning to match letters. (JC)

Describes the development of the capacity of encoding unfamiliar voices and compares this development with the development of the capacity for encoding faces. Subjects were 20 students from Massachusetts Institute of Technology, and 20 children aged 6 to 16. (MP)

Investigates the prediction that the usual superiority of pictures over words for repetitions of the same items would disappear for items that were different instances of repeated categories. (Author/RK)