1980 DEC users’ group report

The 1980 meeting of users/owners of Digital Equipment Corporation (DEC) computer equipment is discussed.     

Medication effects in the classroom: Three naturalistic indicators

Hyperactive and comparison boys participated in 5-week summer enrichment programs that included classroom activities and structured assessments of peer interaction patterns. During the 3rd and 4th weeks of these programs, a double-blind, methylphenidate-placebo crossover design was implemented within the hyperactive group. Three heterogeneous indicators of everyday behaviors were obtained: number of negative incidents noted by staff, quality of handwriting, and number of times the teacher called the boys' names aloud in the classroom. Medication effects emerged for each of these indicators. When hyperactive boys were taking placebos, they were involved in more negative incidents, their handwriting was poorer, and their names were called more frequently than when the boys were taking methylphenidate. Interrelationships among the measures suggest moderate cross-situational generality of medication responsiveness. Discussion focused on the bandwidth of medication effects and the need to examine the social ramifications of child treatments.This research was supported in part by NIMH grant 29475 and NIDA grant 01070. We gratefully acknowledge the participation of the data coders and the many summer school staff. Special thanks go to Mike Berlin, Barry E. Collins, and Sharon Dotemoto. Methylphenidate and placebo were supplied by Ciba-Geigy, Summit, New Jersey.     

What’s happening in CAI: A survey of ongoing projects

As there are more CAI papers in this year’s “Computers in Psychology” program than in any past year, the membership was surveyed to provide a broad overview of current trends. This is a report of the obtained data (1) on what courses use CAI and the hardware supporting those courses, (2) on the software and “courseware” involved, (3) on CAI record-keeping and evaluation procedures, and (4) on the financial costs and educational benefits of the various projects.     

Early lexical development in children with focal brain injury

Early lexical development in 27 children with focal brain injury was studied cross-sectionally and longitudinally. Data were obtained from children between 12 and 35 months of age who acquired their lesion prenatally or within the first 6 months of life. Results for the group as a whole provide clear evidence for delays in lexical comprehension and production, and for a larger number of comprehension/production dissociations than would be expected by chance. In addition, a significant number of children were observed having unusual difficulty mastering predication and/or using an atypically high proportion of closed class words (suggesting reliance on holistic/formulaic speech). Analyses by lesion type revealed no effect of lesion size. Analyses according to side of lesion revealed that children with right-hemisphere damage produced a higher proportion of closed class words, suggesting heavy reliance on well-practiced but under-analyzed speech formulae. Children with left-hemisphere damage were slightly better in comprehension than children with right-hemisphere damage. In addition, left posterior lesions were associated with greater delays in expressive language, and delays were more protracted in children with left posterior damage. No differential effects of left posterior damage were found for lexical comprehension.     

Joint DEC and microprocessor users’ groups report

The results of a joint meeting of users of Digital Equipment Corporation (DEC) computers and various microprocessors are reported. The meeting included a review and a discussion of Unix and of recent hardware and software products from DEC.     

DEC vs. DEC-compatible hardware

In recent years, users of Digital Equipment Corporation (DEC) computers have been offered compatible products manufactured by other companies. This paper reviews the results of a survey concerning the purchase and use of non-DEC products; comments concerning advantages or disadvantages of buying DEC vs. non-DEC products are noted.     

The motivating function of thinking about the future: expectations versus fantasies

Two forms of thinking about the future are distinguished: expectations versus fantasies. Positive expectations (judging a desired future as likely) predicted high effort and successful performance, but the reverse was true for positive fantasies (experiencing one's thoughts and mental images about a desired future positively). Participants were graduates looking for a job (Study 1), students with a crush on a peer of the opposite sex (Study 2), undergraduates anticipating an exam (Study 3), and patients undergoing hip-replacement surgery (Study 4). Effort and performance were measured weeks or months (up to 2 years) after expectations and fantasies had been assessed. Implications for the self-regulation of effort and performance are discussed.     

Walking the tightrope between feeling good and being accurate: mood as a resource in processing persuasive messages

Three studies investigated the influence of mood states on the processing of positive and negative information regarding caffeine consumption and on the impact of this information on one's mood, attitudes, and intentions. The results were consistent with the predictions of the mood-as-a-resource hypothesis: First, the induction of positive mood in high (compared with low) caffeine consumers enhanced recall of negative information about caffeine consumption. Second, processing information about caffeine consumption undermined the positive mood of high (but not low) caffeine consumers. Third, the induction of positive mood enhanced the impact of negative information about caffeine on high (compared with low) caffeine consumers' attitudes and intentions toward caffeine consumption.