A NEUROBIOLOGICAL NON ALTERNATIVE: REJOINDER TO LEWIS,BAUMEISTER, AND MAILMAN

Certain misrepresentations of our theory of self-stimulatory behavior by Lewis, Baumeister, and Mailman (1987) are corrected and several questions raised by the commentators are answered. Their proposed neurobiological alternative is considered briefly and judged to be insufficiently detailed, inadequate in scope, and therefore premature.     

A comparison of human and automated instruction of autistic children

While it appears reasonable to assume that the autistic child might benefit from the development of programmed instruction and teaching machines to teach imitation, concepts, and receptive vocabulary skills, no systematic research to date has seriously investigated such possibilities. The purpose of this study was to compare the effects of automated versus teacher-controlled instruction in the education of autistic children. Four autistic children, each with extreme deficits in language, social, and self-care behaviors, were trained on a matching-to-sample task under three different instructional situations within an intrasubject replication design and multiple baseline procedure. Analysis of the data showed the following results: (1) The teacher, manually operating the teaching machine, was able to teach and maintain the matching-to-sample task; (2) the same autistic children did not acquire or maintain the task when taught by the machine alone; and (3) the teacher alone (without the machine) was able to teach and maintain the task. The results suggest that automated instruction may, at least, serve as a valuable aid to teachers of autistic children. However, before machines can be used without the participation of a trained teacher, further research appears necessary. Several areas, including the role of motivation in automated instructional settings, the saliency and effectiveness of reinforcers, and the importance of controlling antecedent stimulus conditions and off-task behavior are discussed as areas of primary concern in the development of automated instruction for autistic children.     

An analysis of observational learning in autistic and normal children

The present investigation studied observational learning in autistic children. Fifteen autistic and 15 normal children watched an adult model engage in a set of behaviors under specific verbal instructions. After observing this situation, the children were tested to determine what they had acquired through observation. The results showed that (1) the majority of the autistic and the youngest normal children acquired only some limited features of the observational situation and (2) chronological age was related to the amount of learning through observation in the normal children but not in the autistics. The deficit that the autistic children showed in observational learning may be related to a failure to discriminate or attend to the total stimulus input presented. Their failure in observational learning can be seen to contribute in a major way to the severely impoverished behavioral repertoires of these children.     

THE DEVELOPMENT OF A TREATMENT-RESEARCH PROJECT FOR DEVELOPMENTALLY DISABLED AND AUTISTIC CHILDREN

This paper describes the development and main results over the last 30 years from the treatment-research project with developmentally disabled (autistic) children in the Psychology Department at the University of California, Los Angeles (UCLA). Three important dimensions in treatment research are addressed. The first pertains to the role of serendipity or accidental discoveries, the second to the importance of pursuing inductive rather than theory-driven research, and the third to the importance of adding in a cumulative and step-wise manner to improve treatment adequacy. Data from various areas of treatment research have been used to illustrate new directions for the project. These illustrations center on early and successful attempts to isolate experimentally the environmental variables that control self-injury, failure to observe response and stimulus generalization with subsequent loss of treatment gains, and the main results of intensive and early behavioral intervention in the child's natural environment. Effective treatment for severe behavioral disorders is seen to require early intervention carried out during all or most of the child's waking hours, addressing all significant behaviors in all of the child's environments, by all significant persons, for many years.     

Infant responsiveness and maternal confidence in the neonatal period

Responsiveness in prematurely and term-born infants was studied cross-sectionally in relation to maternal confidence. Orientation and arousal were measured in 140 prematurely (mean BW 1,398 g, GA 30.1 weeks) and 75 term-born infants (mean BW 3,613 g, GA 39.3 weeks) with the Neonatal Behavioral Assessment Scales. Mothers filled out the Maternal Confidence Questionnaire and a modified version of the Parenting Stress Index. Prematurely born infants had a significantly lower level of arousal than term-born neonates. Responsiveness was not associated with maternal confidence. Lower confidence was associated with primiparity in both groups of mothers. Multiparous mothers of prematurely born infants had significantly lower levels of confidence than multiparous mothers of term-born infants. Confidence was significantly associated with stress for mothers of prematurely and term-born infants, and may be focused in follow-up after giving birth. Prematurely born infants should be examined more thoroughly in aspects of arousal at the time of discharge.     

Exploring replay value: shifts and continuities in user experiences between first and second exposure to an interactive story

While replay value is a common term in interactive entertainment, psychological research on its meaning in terms of user experiences is sparse. An exploratory experiment using the interactive drama "Fa?ade" was conducted (n=50) to examine shifts and continuities in entertainment-related user experiences between first and second exposure to the same system. A questionnaire with brief scales measuring various user-experience dimensions (interaction-related facets such as usability, flow, and presence, as well as narrative-related facets such as suspense and curiosity) was administered after the first and the second round of exposure. Findings suggest that replay produces gains in action-related experience components such as presence and effectance, whereas narrative-related experiences such as curiosity and suspense remain stable across exposures. Implications for theorizing on interactive entertainment experiences are discussed.     

The Skin Picking Impact Scale: Factor structure,validity and development of a short version

In the present study, we examined the psychometric properties of the Skin Picking Impact Scale (SPIS; Keuthen, Deckersbach, Wilhelm et al., 2001), a 10 item self‐report questionnaire designed to assess the psychosocial impact of skin picking disorder (SPD). Participants were 650 individuals who met criteria for SPD in an online survey. Exploratory and confirmatory factor analyses demonstrated a unitary factor structure with high internal consistency (α = 0.94). Consequently, we constructed an abbreviated 4‐item version that retained good internal consistency (α = 0.87) and a robust factor structure. Both the short and the full versions demonstrated discriminant and convergent/concurrent validity. In conclusion, the findings indicate that both versions are psychometrically sound measures of SPD related psychosocial impact; however, some potential limitations of the full scale are discussed.     

The Gettier Intuition from South America to Asia

Journal of Indian Council of Philosophical Research - This article examines whether people share the Gettier intuition (viz. that someone who has a true justified belief that p may nonetheless fail...     

Looking back versus looking ahead: framing of time and work at different stages of a project

Progress on a well‐defined project can be described along a task dimension in terms of amount done, or as amount of work still to be completed. Time‐limited projects can also be described on a temporal dimension in terms of time spent versus time left. Five experiments are reported showing that such frames have predictable implications for speakers as well as for listeners: Statements by a team leader about time spent and work left are perceived as suggestions to “hurry up,” whereas complementary statements about work done and time left indicate that the team can take it more easy. The first set of statements further implies that the team is behind schedule, whereas the last two statements suggest that the team is ahead of the plan. In line with this, speakers preferred work done and time left statements when they were ahead of schedule, but not when they were behind. “Hurry up” and “behind schedule” interpretations were also shown to be dependent upon stage, being more prominent in the final stages than during the initial stages of a project. Copyright © 2005 John Wiley & Sons, Ltd.