AN ANALOGUE EVALUATION OF ENVIRONMENTAL ENRICHMENT: THE ROLE OF STIMULUS PREFERENCE

To evaluate the effects of environmental enrichment on stereotypic self-injurious behavior (SIB), we conducted an assessment of preference for manipulating alternative stimuli rather than engaging in SIB. First, for each of 3 participants, a functional analysis of SIB was conducted in Phase 1. Participants were selected for Phase 2 if the functional analysis showed that SIB persisted in the absence of social consequences. In Phase 2, a preference assessment was conducted in which participants were observed manipulating preferred stimuli in a free-operant format. A measure was taken of time spent manipulating each stimulus and time spent engaging in SIB. In Phase 3, environmental enrichment was evaluated using stimuli that were preferred over the target response, and alternative treatments were evaluated in the event of environmental enrichment failure. Results suggested that the free-operant preference assessment (a) predicted the efficacy or inefficacy of an environmental enrichment procedure and (b) suggested possible treatment alternatives when environmental enrichment was ineffective. Collectively, the results may provide a basis for interpreting the idiosyncratic effects of environmental enrichment and a rationale for treatment selection when behavioral function is unknown.     

Decreasing problem behavior associated with a walking program for an individual with developmental and physical disabilities

In the current investigation, a functional analysis suggested that positive reinforcement in the form of physical contact maintained the self-injurious behavior of a girl with developmental and physical disabilities. We used the information obtained from the functional analysis to develop a treatment for noncompliance with walking in which a therapist removed physical interaction following inappropriate behavior during walks.     

Behavioral neuropsychology: Past,present, and future direction with organically based affect/mood disorders

Affective/mood disturbances have been widely described in association with central nervous system dysfunction. There have been multiple divergent viewpoints regarding the origin of these disorders, however. This is not surprising, as theories evolve in relation to our degree of technological advancement. This review describes the evolution of some of these views, and discusses the advantages of behavioral neuropsychology as an effective approach to assessment/treatment in this context. Although there have been few articles published describing the use of behaviorally based approaches to treat these disorders, it is thought that this approach shows promise, particularly when combined with information based on neuropsychological assessment data. Future directions for the continued evolution of this field are outlined.     

Decreasing Self-Injurious Behavior in a Student with Autism and Tourette Syndrome through Positive Attention and Extinction

This case study was conducted with a student diagnosed with autism and Tourette syndrome who displayed severe self-injurious behavior (SIB). We conducted a functional behavioral assessment which indicated that SIB was maintained by multiple functions using an ABAC design to determine the effect of positive social attention and extinction. Results show a considerable decrease in SIB incidents, particularly when session duration was reduced from 10 minutes to 5 minutes during the second intervention phase. Thus, the combination of contingent social attention formulated from the functional assessment and extinction was successful in bringing about significant decreases in SIB. This combination holds great promise as a nonintrusive positive strategy for SIB.     

Reduction of unsafe eating in a patient with esophageal stricture.

Previous research has demonstrated the efficacy of behavioral interventions in teaching self-feeding skills as well as in reducing inappropriate self-feeding behavior. The purpose of this study was to extend previous research on the use of prompting and reinforcement in reducing unsafe eating behaviors to the treatment of an adolescent with developmental disabilities and esophageal stricture. A behavioral assessment and treatment using prompting and reinforcement were shown to be effective in decreasing bite rate, decreasing bite size, and increasing the number of chews per bite.     

Acquisition and generalization of manual signs by hearing-impaired adults with mental retardation

Behavioral procedures have been used to teach manual communication skills to individuals with mental retardation, although few studies have examined the assessment of generalization of such skills beyond the teaching environment. In this study, we investigated the effectiveness of directed rehearsal for teaching and facilitating the generalization of manual signs by six hearing-impaired adults with mental retardation. The effects of directed rehearsal, alone and combined with positive reinforcement for correct responses, were compared to a no-training control condition in an alternating treatments design. Although directed rehearsal was superior to the no-training control condition in teaching manual signs, the procedure was more effective when combined with positive reinforcement. The combined procedure was used to facilitate the generalization of learned signs across a number of variables. The results showed that there were high levels of generalization by all participants across novel phrases, settings, and trainers but variable levels of generalization to another response mode by some subjects. Further, increased levels in overall vocal communication were found for most participants.     

Attachment style and the regulation of negative affect: exploring individual differences in mood congruency effects on memory and judgment

Three studies examined the role that attachment style plays in moderating the effects of induced negative affect on memory and judgment. Israeli undergraduates completed an attachment style scale and were exposed to a negative or neutral affect induction. In Study 1, incidental recall of negative and positive information was assessed; in Study 2, the attribution of negative and positive relational events was studied; and in Study 3, findings of Study 1 were replicated using a different affect induction procedure. Whereas securely attached persons reacted to induced negative affect with an affect-incongruent pattern of cognitions (better recall of positive information, more unstable/specific attribution of negative event), anxiously attached persons reacted with an affect-congruent pattern (worse recall of positive information, more stable/global attribution of negative event). Persons scoring high on attachment avoidance showed no significant cognitive effect of negative affect. The discussion emphasizes the role that attachment strategies play in the affect-cognition link.     

Self- and interview-rated negative mood states in schizophrenia: Their convergence and prediction of thought disturbance

This longitudinal study evaluated the relations between self- and interview-rated negative mood in schizophrenics and compared the prognostic utility of these two methods. Thirty schizophrenics who had been stabilized on neuroleptic medications were evaluated with self-report and interview-based measures of mood and symptomatology at an initial assessment and again at 6-month follow-up. Results indicated that measures of self- and interview-rated negative mood showed little agreement at the initial assessment; however, at follow-up, significant convergent correlations between the two methods were obtained. Self-reported negative mood at the initial evaluation predicted the severity of thought disturbance at follow-up, whereas interview-based ratings of mood did not. The results underscore the importance of conducting multimethod assessments of mood and support other research suggesting that self-reported negative mood states may predict course of the illness in schizophrenia.This research was supported by National Institute of Mental Health (NIMH) Grants MH38636 and MH39998 and by a grant from the National Alliance for Research in Schizophrenia and Depression (NARSAD). Jack J. Blanchard was also supported in part by NIMH Grant MH18932 for the Collaborative Training Program in Schizophrenia Research at the Medical College of Pennsylvania/EPPI. Portions of this research were presented at the 24th Annual Meeting of the Association for the Advancement of Behavior Therapy, San Francisco, California, November 2, 1990, and at the 3rd International Congress on Schizophrenia Research, Tucson, Arizona, April 22, 1991.     

Comparison of different strategies to decrease negative affect and increase positive affect in women with borderline personality disorder

Background

In this study we compared the effect of different emotion regulation strategies on positive and negative emotions in patients with borderline personality disorder.

Methods

Emotion regulation strategies were a distracting task, individual positive memory imagery, individual soothing imagery, and a neutral comparison condition. During two separate sessions, 17 participants watched either neutral or negative movie segments before using these strategies.

Results

All three strategies influenced emotions into a favorable direction as compared to the neutral comparison condition. The positive memory image increased positive emotions significantly stronger than counting colors and distracting.

Discussion

Different strategies seem to have similar effects in decreasing negative emotions. Positive emotions may be affected in particular by positive and soothing imagery techniques.     

Behavioural characteristics of offenders with mental health disorders in a South African prison population

This exploratory study profiled behavioural characteristics of a non-random sample of 91 offenders with mental illness in a South African correctional facility. The sample is directly related to diagnosed cases from the correctional psychiatrist's case load. The most prevalent mental disorders diagnosed amongst the research participants of this sample specific profile were schizophrenia (33%), major depressive (27.5%), bipolar mood (12.1%) and psychotic disorders (11%).     

Interventions for inappropriate sexual behavior in individuals with intellectual and developmental disabilities: A brief review

Although prevalence rates vary, 6% to 28% of individuals with intellectual or developmental disabilities (IDDs) engage in inappropriate sexual behavior (ISB), ranging from public masturbation to sexually aggressive behavior. Along with increased risk for contacting the criminal justice system, people with IDDs who display ISB may encounter negative social consequences, restricted community access and barriers to independence, and a variety of counter-therapeutic outcomes. The purpose of the present review is to highlight recent, efficacious behavior-analytic treatments for ISB in individuals with IDDs. Ethical considerations and areas for future research will be discussed.     

Assessment of the functions of vocal behavior in children with developmental disabilities: a replication

Although experimental analysis methodologies have been useful for identifying the function of a wide variety of target behaviors (e.g., Iwata, Dorsey, Slifer, Bauman, & Richman, 1982/1994), only recently have such procedures been applied to verbal operants (Lerman et al., 2005). In the current study, we conducted a systematic replication of the methodology developed by Lerman et al. Participants were 4 children who had been diagnosed with developmental disabilities and who engaged in limited vocal behavior. The function of vocal behavior was assessed by exposing target vocal responses to experimental analyses. Results showed that experimental analyses were generally useful for identifying the functions of vocal behavior across all participants.     

Interaction of reinforcement schedules, a behavioral prosthesis, and work-related behavior in adults with mental retardation

The effects of variable-interval (VI) and fixed-ratio (FR) schedules of reinforcement for work-related behavior and an organizer for the work materials (behavioral prosthesis) were evaluated with 3 adults with severe or profound mental retardation. The participants had been recommended for study because of high rates of off-task and aberrant behavior in their daily vocational training programs. For 2 participants, VI and FR schedules resulted in the same outcome: more aberrant behavior than on-task and off-task behavior combined. The FR schedule nearly eliminated emission of aberrant and off-task behavior by the 3rd participant. Combining the behavioral prosthesis with FR reinforcement (FR+O) increased the proportion of time spent in on-task behavior by all participants under certain FR schedule parameters. Second-by-second analyses of the observation records revealed that FR schedules reduced off-task and aberrant behavior during work sequences (i.e., ratio runs), and FR+O led to a further reduction of these behaviors during postreinforcement pauses. Overall, the results show how organizer and schedule parameters can be adjusted to produce an optimized balance between productivity and reinforcement while undesirable behavior is minimized.     

The effects of directive and nondirective prompts on noncompliant vocal behavior exhibited by a child with autism

Results of an analogue functional analysis indicated that noncompliant vocal behavior exhibited by a young girl with autism was maintained by negative reinforcement. Follow-up analyses suggested that the immediate escape contingency assessed in the demand condition did not appear to maintain the behavior. Instead, noncompliant vocal behavior occurred in response to directive prompts. Nondirective prompts reduced noncompliant vocal behavior to near zero.     

The relation between low self-esteem and depressive mood in a non-clinical sample: The role of gender and negative life events

The suggestion that self-esteem is both a protective and a risk factor for depression is well documented. However, this association is not consistently observed by empirical research. The current study investigated the main and interactive effects of low self-esteem and stressful life events on depressive mood in a sample of university students (N = 862; female = 72%; black = 67%; mean age = 21.70, SD = 13.51). The students completed the Hopkins Symptom Checklist, the Rosenberg Self-Esteem Scale, and the Perceived Stress Scale. Data were analysed using structural equation modelling (SEM); with stressful life events scores as a mediator, and gender as a moderator, of the relation between low self-esteem and depression. Results indicate that low self-esteem significantly predicted depression, and that stressful life events partially mediated that relationship. Support emerged for the vulnerability effects of low self-esteem on depression and they held across gender groups. Low self-esteem may be a significant indicator of individuals who are at risk for developing depressive mood.     

Further evaluation of emerging speech in children with developmental disabilities: training verbal behavior

The conceptual basis for many effective language-training programs are based on Skinner's (1957) analysis of verbal behavior. Skinner described several elementary verbal operants including mands, tacts, intraverbals, and echoics. According to Skinner, responses that are the same topography may actually be functionally independent. Previous research has supported Skinner's assertion of functional independence (e.g., Hall & Sundberg, 1987; Lamarre & Holland, 1985), and some research has suggested that specific programming must be incorporated to achieve generalization across verbal operants (e.g., Sigafoos, Reichle, & Doss, 1990). The present study provides further analysis of the independence of verbal operants when teaching language to children with autism and other developmental disabilities. In the current study, 3 participants' vocal responses were first assessed as mands or tacts. Generalization for each verbal operant across alternate conditions was then assessed and subsequent training provided as needed. Results indicated that generalization across verbal operants occurred across some, but not all, vocal responses. These results are discussed relative to the functional independence of verbal operants as described by Skinner.     

A methodology for assessing the functions of emerging speech in children with developmental disabilities

An approach based on Skinner's (1957) theory of verbal behavior has been developed to understand and teach elementary communication skills to children with autism and developmental disabilities (Sundberg & Partington, 1998). However, few studies have directly examined the characteristics of emerging language in children with developmental disabilities. The purpose of this study was to develop and evaluate an assessment for identifying the elementary functions of vocal speech in children. Participants were 4 children with developmental disabilities, aged 6 years to 12 years, who exhibited at least one distinguishable vocal response (word or phrase) frequently in the natural environment. The assessment focused on three verbal operants delineated by Skinner (mand, tact, and intraverbal). One or more functions were identified for at least one vocal response of each child. Results suggested that this assessment would be useful for (a) evaluating Skinner's theory, (b) guiding decisions about language training for individual children, and (c) studying the nature of expressive language development in children with developmental disabilities.     

Classification of vowels and consonants by individuals with moderate mental retardation: development of arbitrary relations via match-to-sample training with compound stimuli.

This study explored whether an identity-matching-based stimulus equivalence procedure could be used to teach vowel and consonant stimulus classes to 2 adolescent females with moderate mental retardation. Delayed match-to-sample trials presented a compound sample stimulus consisting of printed letters and a spoken word (“vowel” or “consonant”). The correct comparison stimulus matched only one of the letters in the compound sample. Subsequently, test trials assessed whether arbitrary relations had formed among the individual stimuli from each compound sample and whether stimuli from different compound samples had merged into larger stimulus classes. Both participants acquired five-member classes of vowel and consonant stimuli, which subsequently generalized to vocal classification and to identification in the context of four-letter words. Follow-up tests showed that the generalized performances remained intact after 6 weeks. These procedures suggest an economical approach to stimulus class development.