Effects of sucrose concentrations on single alternation runway responding in rats

Rats received runway training under alternating reward and nonreward in which rewarded (R) trials provided 32 or 4% sucrose concentration from a drinking tube and nonrewarded (N) trials provided a dry tube or, for half of the rats in the 32% condition, plain water. Both 32 and 4% concentrations yielded faster running on R trials than on N trials; but this effect was reliable only for the 32% condition. Compared to 4% sucrose, 32% sucrose yielded reliably slower running on N trials and unreliably faster running on R trials.     

A scale to measure attitudes toward working

The purpose of this study was to develop a scale that could measure attitude toward work and be used to determine the relation between length of unemployment time and work attitudes. Standardization of the Employment Readiness Scale was completed through its administration to three independent groups (N = 430): (1) employed workers: employees who worked in unskilled, semiskilled, and occasionally skilled job classifications; (2) unemployed individuals who were actively looking for regular employment at the Tennessee State Employment Service; and (3) the chronically unemployed: individuals, who, for the most part, were not looking for regular employment and who were seeking night lodging and meals at the Salvation Army or the Knoxville Union Rescue Mission. Through item analysis, it was determined that 43 of the 45-scale items were significant at or beyond the .01 level. It was further established that a relationship existed between work attitudes and length of unemployment. The longer an individual was unemployed, the less positive was his attitude toward work.     

Effects of static and motion parallax depth information on perception of size in children and adults

The effects of static and kinetic information for depth on judgments of the relative size of objects placed at different distances was studied in 3- and 7-yr-old children and adults. Subjects viewed either a pair of objects placed on the floor of a textured alley or a projected slide of the identical scene. The presence of motion parallax information for depth was also manipulated. All subjects showed a clear sensitivity to static pictorial depth information in judging objects placed so they projected equal retinal areas. When the retinal size of objects was very different, however, children tended to respond to retinal rather than physical size. Motion parallax information increased responsiveness to depth when a 3-dimensional scene was being viewed, but decreased responsiveness with 2-dimensional projections. The decrease was greater in children than adults.     

Reinforcement and attraction specifying the effects of affective states

A multiplicative effect of magnitude and proportion of positive reinforcements on attraction and self-rated feelings was examined. Subjects (N = 270) rated their attraction toward persons associated with one of three reinforcement magnitudes (personality similarity, attitude similarity, and personal evaluations) and one of six proportions of positive reinforcements (.00, .20, .40, .60, .80, and 1.00). Results indicated that the slope of the linear attraction function increased and the Y-intercept decreased with increasing magnitude of reinforcement (p < .05). A similar interaction effect was found on the feelings of the subjects (N = 90) in another experiment. The results were interpreted as added support for Byrne's reinforcement-affect model of interpersonal attraction.     

Walking impairs cognitive performance among people with multiple sclerosis but not controls

People with multiple sclerosis (MS) complain of problems completing two tasks simultaneously; sometimes called ‘dual-tasking’ (DT). Previous research in DT among people with MS has focused on how adding a cognitive task interferes with gait and few have measured how adding a motor task could interfere with cognition. We aimed to determine the extent to which walking affects a concurrent working memory task in people with MS compared to healthy controls. We recruited MS participants (n = 13) and controls (n = 10) matched by age (±3 years), education (±3 years) and gender. Participants first completed the cognitive task (subtracting 7’s from the previous number) and then again while walking on an instrumented walkway. Although there were no baseline differences in cognition or walking between MS participants and controls, MS participants demonstrated a 52% decrease in number of correct answers during DT (p < 0.001). Mental Tracking Rate (% correct answers/min) correlated strongly with MS-related disability measured using the Expanded Disability Status Scale (EDSS; r(11) = −0.68, p < 0.01). We propose that compromised mental tracking during walking could be related to limited neural resource capacity and could be a potentially useful outcome measure to detect ecologically valid dual tasking impairments.     

The Munroe-Meyer Approach: Continuous Integration of Didactic Instruction,Research, and Clinical Practice

Increased demand for applied behavior analysis (ABA) services has increased the need for additional masters-level practitioners and doctoral-level academicians and clinical directors. Based on these needs, the University of Nebraska Medical Center’s (UNMC) Munroe-Meyer Institute has developed a PhD program. The academic structure at UNMC allowed us to create our PhD program in a relatively quick and efficient manner. Our PhD program has many unique features, including (a) close integration of didactic instruction with clinical and research training provided by leading experts in ABA in which students immediately apply concepts introduced in the classroom during coordinated clinical and research practica; (b) structured grant writing training in which students learn to write and submit an NIH-level grant; (c) financial support in the form of a stipend of $23,400 per year, free health benefits, and a full-tuition waiver for up to 12 credits per semester for UNMC courses (a benefits package worth approximately $50,000 per year for an out-of-state student); and (d) encouragement and financial support to present papers at local, regional, and national behavior analysis conferences.     

Dynamic testing of learning potential in adults with cognitive impairments: A systematic review of methodology and predictive value

Dynamic testing includes procedures that examine the effects of brief training on test performance where pre‐ to post‐training change reflects patients’ learning potential. The objective of this systematic review was to provide clinicians and researchers insight into the concept and methodology of dynamic testing and to explore its predictive validity in adult patients with cognitive impairments. The following electronic databases were searched: PubMed, PsychINFO, and Embase/Medline. Of 1141 potentially relevant articles, 24 studies met the inclusion criteria. The mean methodological quality score was 4.6 of 8. Eleven different dynamic tests were used. The majority of studies used dynamic versions of the Wisconsin Card Sorting Test. The training mostly consisted of a combination of performance feedback, reinforcement, expanded instruction, or strategy training. Learning potential was quantified using numerical (post‐test score, difference score, gain score, regression residuals) and categorical (groups) indices. In five of six longitudinal studies, learning potential significantly predicted rehabilitation outcome. Three of four studies supported the added value of dynamic testing over conventional testing in predicting rehabilitation outcome. This review provides preliminary support that dynamic tests can provide a valuable addition to conventional tests to assess patients’ abilities. Although promising, there was a large variability in methods used for dynamic testing and, therefore, it remains unclear which dynamic testing methods are most appropriate for patients with cognitive impairments. More research is warranted to further evaluate and refine dynamic testing methodology and to further elucidate its predictive validity concerning rehabilitation outcomes relative to other cognitive and functional status indices.     

Traumatic brain injury: Implications for practice

This article presents a brief overview of the prevalence and history of traumatic brain injury (TBI), discusses the multidimensional effects of TBI, describes the current focus of TBI rehabilitation, and summarizes outcomes from (re)habilitation work with individuals with traumatic brain injury. The importance of this critical area to rehabilitation personnel is discussed, along with suggestions for future research and evaluation studies.     

Examining Correctional Staff Members’ Engagement in Rehabilitation as Part of Their Everyday Practices in Short‐term Juvenile Detention

Research on the rehabilitation of juvenile justice‐involved youth is often focused on specific evidence‐based interventions. Less attention has been paid to everyday interactions that correctional staff members have with detained youth and, further, how these may align with trauma‐informed care principles and thus encourage a more supportive setting. Using an ethnographic case study approach, this study addressed this gap in knowledge by documenting the nature of rehabilitative practices as they naturally occurred in the context of short‐term detention staff members’ daily routine and interactions with detained youth. This study found evidence for three primary forms of routine rehabilitative practices: (a) promotion of youths’ emotional safety and well‐being, (b) provision of rights‐based information and explanations, and (c) encouraging youths’ success in and beyond detention. These practices were observed across several key setting contexts: (a) staff‐led group activities, (b) routine contact between individual youth and staff (e.g., formal procedures, informal conversations), and (c) staff‐only spaces. Our findings highlight the need for ongoing research to effectively translate promising intervention approaches, such as trauma‐informed care, into juvenile detainment settings.     

Socially Valued Roles,Self‐Determination,and Community Participation among Individuals Living with Serious Mental Illnesses

Decades after deinstitutionalization, individuals living with serious mental illnesses remain isolated, socially disengaged, and devalued members of communities. Burgeoning research and services need conceptual clarity to improve such social conditions. This qualitative inquiry used grounded theory and participatory approaches to conduct an in‐depth exploration of community participation for individuals living with serious mental illnesses based on key stakeholder perspectives (n = 45). Results revealed that community participation is a multifaceted construct with layers of meaning for individuals living with serious mental illnesses. Overarching themes are contextualized in Self‐Determination Theory and presented with deidentified illustrations. Implications for services, research, and policy are discussed.