A COMPONENT ANALYSIS OF FUNCTIONAL COMMUNICATION TRAINING ACROSS THREE TOPOGRAPHIES OF SEVERE BEHAVIOR PROBLEMS

We evaluated the separate treatment components of a functional communication training program for 3 severely handicapped persons who each displayed different topographies of aberrant behavior. Following a functional analysis of maintaining conditions for inappropriate behavior (self-injury, stereotypy, aggression), each participant was trained to emit a communicative response that functioned to solicit reinforcement. For 2 participants, consequences (time-out or graduated guidance) for inappropriate behavior were also included. Treatment continued until the participants emitted the communicative response independently and no occurrences of inappropriate behavior were observed for at least two sessions. Following treatment, the separate contributions of the treatment components for communicative responding and for inappropriate behavior were evaluated with a reversal design. The results indicated that both sets of treatment components were necessary for maximal control over aberrant behavior. These results are discussed in relation to the efficiency, history, and control over reinforcement of both appropriate and inappropriate responses.     

TRAINING STUDENTS WITH PROFOUND OR MULTIPLE HANDICAPS TO MAKE REQUESTS VIA MICROSWITCHES

In a series of three experiments, we evaluated the use of microswitches as a means for students with profound, multiple handicaps to demonstrate preferences between toys and to make requests for specific activities. In Experiment 1, 5 students learned to demonstrate toy preferences by using microswitches to activate battery-operated toys. Experiment 2 was conducted to evaluate the students' preferences for social attention. Microswitches were used to activate prerecorded messages that signaled the classroom teacher to attend to the students. In Experiment 3, the students used the switches and prerecorded messages to make specific requests of educational staff in school and community settings. Results of these experiments, evaluated within multiple baseline, alternating treatments, and simultaneous treatments designs, indicated that these students could request specific activities. Results are discussed with respect to the continued use of microswitches and to program development.     

Rules for making psychiatric diagnoses in children on the basis of multiple sources of information: Preliminary strategies

Inherent in the structured diagnostic interviewing of children is the problem of how to resolve differences between the child's own report and that of the parent about the child. A related problem concerns the use of outside source of information about the child, such as information from the teacher. In this study, the authors review the decision-making process used in the assignment of summary psychiatric diagnoses based on the child and parent reports, as well as a number of other sources of information about the child. Provisional rules for making summary diagnoses of children are presented.This research was supported by NIAAA Center Grant Number AA-03539, and The John D. and Catherine T. MacArthur Foundation, Network III on Risk and Protective Factors in the Major Mental Disorders.     

Unemployment and youth: A longitudinal study

In order to examine further some of the effects of the experience of unemployment on school leavers of both sexes, measures of self-esteem, depression and locus of control were administered to 57 males and 56 females prior to their leaving school (Time 1), and again 5 months later (Time 2). At Time 2, the subjects had either returned to school, found employment, or were unemployed. The longitudinal nature of the design enabled statements about causality to be made. Group and sex differences at Time 1 and Time 2 were analysed using discriminant analysis and factorial analysis of variance. Results showed a clear effect of the experience of unemployment on the unempoyed, with the unemployed group increasing their scores on depression and external locus of control, and decreasing their self-esteem scores. Sex differences for depression and self-esteem were found at Time 1, and for depression only at Time 2. Significant employment group x sex interactions were found for self-esteem and locus of control at Time 2.     

Comprehension of nonverbal communication: A reexamination of the social competencies of learning-disabled children

This study was designed to determine whether learning-disabled (LD) children differed from nondisabled (NLD) children in their ability to comprehend nonverbal communication when potential attentional differences between the groups were controlled. In addition, the relationship between nonverbal comprehension and social competence was assessed. Thirty LD and 30 NLD boys between 9 and 12 years of age were administered a short form of the Profile of Nonverbal Sensitivity (PONS) to assess nonverbal comprehension; social competence measures included teachers' ratings of aggressive and withdrawn behaviors using the Behavior Problem Checklist, and blind judges' ratings of performance on a role-play of friendshipmaking skills. Under attention-incentive conditions, no performance differences between LD and NLD children were found on the PONS; however, LD children were judged to be more withdrawn and less socially skilled. While PONS scores were not related to other social competence measures, hey were associated with academic achievement and IQ. Results emphasize the importance of considering the presence of attentional problems in LD children that may interfere with an accurate assessment of their skills.     

Cross-octave masking of single tones and musical sequences: The effects of structure on auditory recognition

A series of experiments explored the role of structural information in the auditory recognition process, within the context of a backward recognition masking paradigm. A masking tone presented after a test tone has been found to interfere with the perceptual processing of the test tone, the degree of interference decreasing with increased durations of the silent intertone interval between the test and masking tones. In the current studies, the task was modified to utilize three-tone sequences as the test stimuli. Six test sequences were employed (LMH, LHM, MLH, MHL, HLM, HML), where L, M, and H represent the lowest, middle, and highest frequencies in the melody. The observers identified these six possible sequences when the three tones of the test sequence were interleaved with three presentations of a single masking tone. All three tones of the test sequence were drawn from the same octave, while the masking tones could be drawn from any of three octaves, symmetrical around the octave containing the test tones. Under these conditions, interference occurred primarily from masking tones drawn from the same octave as the test tones. Masking tones drawn from other octaves were found to produce little, if any, interference with perception of the test tones. This effect was found to occur only for the identification of tonal sequences. Substantial masking of single-tone targets occurred with masking tones drawn from octaves other than that containing the targets. The results make apparent the use of structural information during auditory recognition. A theoretical interpretation was advanced which suggests that, while single tones are perceived on the basis of absolute pitch, the presence of auditory structure may allow relational information, such as exact pitch intervals or melodic contour, to facilitate perception of the tonal sequence.     

Family interactions of assaultive adolescents,stealers, and nondelinquents

Eleven adolescent chronic offenders apprehended for assaultive crimes in the community were observed in their family homes. This group was matched with 11 adolescents apprehended for stealing and with 11 adolescents with no court contact. Assaultive adolescents, unlike their controls, ranked significantly higher among their own family members in terms of their total aversive behavior in the family home. The results support the notion that assaultive adolescents are more involved with fighting with their siblings in the family home and consequently have had more practice in fighting than their controls, thereby preparing them for assaultive behavior in the community. Assaultive adolescents had more female siblings than male siblings, whereas nondelinquent adolescents had more male than female siblings.     

The role of the right hemisphere in the apprehension of complex linguistic materials

To secure information on which aspects of linguistic functioning might be mediated by the nondominant hemisphere, a test battery assessing sensitivity to narrational and humorous materials was administered to a population of right-hemisphere-damaged patients, as well as relevant control groups of normal, aging, and aphasic individuals. While elementary linguistic functioning was adequate, the right-hemisphere-injured groups exhibited consistent difficulties in respecting the boundaries of a fictive entity, assessing the plausibility of elements within a story or joke, selecting the appropriate punch line for a joke, and integrating elements of a story into a coherent narrative. Certain elements—specifically emotional content and noncanonical facts injected into a narrative—also posed characteristic difficulties for these patients. The results suggest that, in contrast to the other populations, right-hemisphere patients exhibit special difficulties in processing complex linguistic entities and in utilizing the surrounding context as they assess linguistic messages.     

Comparisons of stimulus learning and response learning in a punishment situation

These experiments use a procedure in which a rat is trained to make two topographically distinct responses on a single manipulandum, and then one of the responses is punished. Differential suppression of the punished response is taken as evidence of response learning, whereas the common suppression of both responses is attributed to stimulus learning or to general and nonassociative factors. Thus, this procedure begins the experimental separation of animals learning about the consequences of their behavior and animals learning what happens in a particular environment. A further separation is effected by using two such manipulanda; this procedure begins to distinguish between stimulus learning about the manipulandum and the more gereral factors that cause suppression. Some parameters affecting the relative importance of stimulus learning and response learning are examined.     

The dependence of semantic relatedness effects upon prime processing

The semantic relationship between a prime and a target word has been shown to affect the speed at which the target word is processed. This series of experiments investigated how the semantic priming effect is influenced by the nature of the task performed on the prime word. Subjects were asked to perform either a naming or a letter-search task on the prime word and either a lexical-decision or color-naming task on the target word. When the primes were named, response times for the target words were facilitated in the lexical-decision task and inhibited in the color-naming task. However, these effects were eliminated or reduced to an insignificant level when the primes were searched for letters. We suggest that in order to produce the usual priming effect, the primes have to be processed for meaning rather than probed for constituents.