Promoting adaptive foot movements and reducing hand mouthing and eye poking in a boy with multiple disabilities through microswitch technology

This study assessed the viability of a microswitch cluster (i.e. a combination of microswitches) plus contingent stimulation for promoting adaptive responding and reducing aberrant behavior in a boy with profound multiple disabilities. The boy was initially taught an adaptive foot-movement response that activated a motion microswitch and produced preferred stimuli. Subsequently, his foot response led to preferred stimuli only if it occurred in the absence of aberrant behavior (i.e. hand mouthing and eye poking which were detected through optic microswitches). Moreover, full access to the stimuli required that the boy refrain from aberrant behavior during their presentation as well. The study also included a 3-month post-intervention check and a social validation assessment. Data showed that the boy (i) increased his adaptive responding, (ii) learned to perform this responding largely free from aberrant behavior and refrained from that behavior for most of the session time, and (iii) maintained this performance at the post-intervention check. The social validation ratings of 40 teachers and teacher assistants significantly favored the last intervention period (in which aberrant behavior was reduced) over the initial period.     

Alarm Signals and Prompts to Eliminate Large Urinary Accidents in a Woman with Multiple Disabilities

Urine-triggered alarm signals and prompts were used to help a woman with multiple disabilities halt wetting episodes and walk to the toilet (thus avoiding large urinary accidents). Data indicated that the woman had a mean frequency of 1 large accident nearly every 2 days during the baseline phases and every 20 days during the intervention phases. During the latter phases, large accidents were replaced by small accidents (i.e. only a disposable tissue inside the underwear was wet), which did not cause environmental disruptions and did not require changes of clothes. Implications of the findings are discussed.     

Learning as a possible sign of non-reflective consciousness in persons with a diagnosis of vegetative state and pervasive motor impairment

A diagnosis of vegetative state represents a serious predicament, which basically precludes/minimizes rehabilitation perspectives. Reliability of the assessment approach in these situations is of paramount importance, but not easy to achieve. In recent studies, a learning assessment procedure has been suggested as a supplement in the diagnostic process and assessed with eight patients. The procedure involves an ABABCB sequence in which A represents baseline phases with no stimulation available, B intervention phases with stimuli delivered contingently on target responses, and C a control condition. This condition involves stimulation presented non-contingently. The patients’ ability to associate responding with environmental stimuli and thus increase such responding during the B phases, and reduce it during the A and C phases, may be considered a sign of learning. Learning might be viewed as representative of forms of concrete knowledge and presumably basic levels of consciousness. Preliminary results indicate that (a) signs of learning may appear in patients with a previous diagnosis of vegetative state and (b) the presence of those signs may require a revision of their diagnostic label and a reappraisal of their rehabilitation perspectives.     

An experimental investigation of the effect of worry on responses to a discrimination learning task

The current study examined the impact of both the tendency to worry (trait worry) and the process of worry (state worry) on subsequent behavioral responding in a schedule discrimination learning task. High and low trait worriers were randomly assigned to a state worry or relaxation incubation condition and completed a test of executive functioning and a dual contingency learning task that utilized neutral discriminative cues over the course of 2 contingency phases. Although state and trait worry did not impact executive functioning, the state worry condition was associated with diminished sensitivity to learning task contingencies over the course of the first contingency learning trials in comparison to the relaxation condition. This relationship was unique to the state worry condition above and beyond shared variance with subjective anxiety level. Results suggest that state worry may lead to a decrement in selective behavioral responding to neutral discriminative cues in the environment. The findings suggest that the process of worry may lead to less adaptive responding to neutral cues and interfere with adaptive behaviors, which may thereby contribute to and maintain anxiety.     

Within-day time-varying associations between motivation and movement-related behaviors in older adults

ObjectivesEmerging evidence suggests both motivation and movement-related behaviors vary within and across days. Yet common data analytic approaches assume static or consistent relationships between motivation and behavior across time. Just as motivation and behavior change across time, so too might associations between motivation and behavior. This study will apply time-varying effect modeling to Ecological Momentary Assessment (EMA) data to examine time of day differences in how motivational constructs predict older adults’ subsequent movement-related behavior over the next 2 h.DesignOlder adults (n = 104) completed a 10-day EMA protocol.MethodParticipants answered up to 6 EMA prompts/day to assess momentary intentions and self-efficacy to stand or move as well as intentions and self-efficacy to limit sedentary time over the next 2 h. Participants wore an activPAL accelerometer continuously to measure time spent being upright (i.e., standing or moving) and time spent sitting.ResultsOn weekdays, intentions and self-efficacy were generally predictive of subsequent behavior in the expected direction over the majority of the day whereas these constructs predicted subsequent behavior in the expected directions over a smaller range of times on weekend days.ConclusionsThis study adds to emerging evidence that associations between motivational constructs and subsequent behavior change over the course of the day, but these time-varying associations may be different depending on the day of week. This work has implications for intervention design and the timing of intervention content delivery in approaches like just-in-time adaptive interventions.     

A Pre-Match Video Self-Modeling Intervention in Elite Youth Football

In this study, a self-modelling video intervention was delivered to four elite youth soccer players over 13 weeks of the competitive soccer season. A multiple-baseline, repeated measures single-subject design was used to explore the impact of the intervention on subcomponents of soccer performance and psychological variables, including self-efficacy and positive/negative affect. Statistical analysis indicated that there were significant changes between pre- and post-intervention scores for two players (1 & 3) on three subcomponents of performance (turns, headers and tackles). The findings of this study highlight the potential benefits of designing individualised pre-match video interventions with elite youth athletes.

Lay Summary:

Video self-modelling (VSM) is a behavioural intervention in which an athlete views a video of themselves engaged in adaptive behaviour, in order to learn to reproduce it effectively under pressure. In this study, the impact of a self-modelling video intervention is examined within a youth football soccer environment.     

Effects of vestibular stimulation on motor development and stereotyped behavior of developmentally delayed children

Four developmentally delayed babies were given semicircular canal stimulation in an effort to facilitate their motor and reflex development. Each of the children also exhibited abnormal stereotyped movements. The theory was advanced that these movements are related to motor development and that significant improvements in motor abilities will produce changes in the intensity and/or form of stereotypic responding. Semicircular canal stimulation was provided by rotating the children in a motor-driven chair at a velocity of about 17 rpm for 10 minutes daily over a period of 2 weeks. Standard motor and reflex measures were taken before, during, and after the rotation treatment period. Daily observations were made of the children's stereotyped movements. Over the course of the study all of the children showed motor and/or reflex changes that were attributable to the vestibular stimulation. In addition, some evidence was obtained linking changes in stereotypic responding to the vestibular stimulation.This work was supported by PHS Grant Nos.HD15051 and HD13344.     

Individual differences in the impact of attentional bias training on cardiovascular responses to stress in women

Abstract

Experimental studies show that training people to attend to negative stimuli makes them more likely to respond with greater anxiety to stress. The present study investigated this effect in students using measures of cardiovascular responses to stress and examined whether individual differences influence the impact of attention training on stress responses. Using a standard dot probe task, 30 participants underwent negative attentional bias training and 34 participants underwent anti-negative training before completing a stressful speech task. Results indicated that, overall, participants exhibited acclimatization to the procedures (indicated by a dip in blood pressure post-training) and normal stress responding (indicated by elevated blood pressure in response to stress; p<.001). However, consideration of participants’ scores for neuroticism/emotional-stability revealed important differences in how the intervention impacted on cardiovascular profiles (p=.008). For participants with high neuroticism scores, the negative attentional bias intervention elicited more exaggerated stress responding than the anti-negative intervention. For those with low neuroticism scores (i.e., emotionally stable participants), the anti-negative intervention was associated with elevated post-intervention blood pressure and higher blood pressure reactivity to stress. These findings provide evidence of the impact of attentional bias manipulation on physiological stress reactivity and suggest the effect is highly contingent on individual temperaments.     

Interpersonal Functioning and Trauma: The Role of Empathy in Moderating the Association of PTSD and Interpersonal Functioning

Research demonstrates consistent associations between symptoms of posttraumatic stress disorder (PTSD) and reductions in interpersonal functioning. Moderators of this association, however, remain relatively unexplored. The current study aimed to examine the extent to which aspects of empathic responding may influence the relation between PTSD symptom dimensions and interpersonal functioning in students exposed to significant trauma. Participants (N = 94, 85.1% female, 86.2% White/Non-Hispanic) completed an initial screening to assess for trauma exposure and associated symptoms of PTSD. Interpersonal functioning and dimensions of empathic responding were measured using a series of self-report and lab-based tasks. Hierarchical regression models provided evidence for a consistent association between post-trauma arousal-reactivity and reductions in interpersonal functioning. Results also indicated a moderating effect of affective empathy (β = −.37, p = .010, f² = .086). Simple slopes and Johnson-Neyman plots identified an association between arousal-reactivity and functioning at low (β = 1.57, p < .001, f² = .301) versus high (β = .31, p = .417, f² = .008) levels of empathic response to a positively valenced film. Results offer preliminary support for a potential buffering effect of affective empathy on interpersonal functioning in individuals reporting chronic, trauma-related symptoms.     

Children's self-reported coping strategies: The role of defensiveness and repressive adaptation

Abstract

This study examined differences in self-reported coping strategies across children classified according to Weinberger et al.'s (1979) adaptive style paradigm. Consistent with the larger literature, it was hypothesized that repressors (i.e. characterized by high self-reported defensiveness and low self-reported distress) would endorse fewer behaviorally and cognitively avoidant coping strategies than other adaptive style groups. Participants included 134 children, ranging in age from 10 to 13 (M=11.26, sd=.59), who completed measures of defensiveness, trait anxiety, and coping. Consistent with the hypotheses, results indicated significantly lower endorsement of avoidant coping strategies, and significantly higher endorsement of approach-oriented strategies among repressors, but no significant differences across adaptive style groups for other forms of coping. Results indicate that, consistent with other indicators of psychological functioning, the measurement of coping strategies is subject to the effects of socially desirable responding. Further, results provide evidence that measures of coping may be contaminated by items reflecting adjustment problems.     

Effect of the SNS-Based Physical Activity-Related Psychological Intervention on Physical Activity and Psychological Constructs among Inactive University Students

Background/ObjectiveThe current study investigated the effects of the physical activity-related psychological intervention via social network service (SNS) on physical activity and psychological constructs in inactive university students.MethodThirty inactive university students participated in the 12-week intervention and received the physical activity-related psychological strategy via SNS. The physical activity levels, stages of physical activity, self-efficacy, pros, and cons were measured at the three time points (baseline, after 6 weeks, and after 12 weeks). Data analyses included frequency analysis, McNemar chi-square (χ²) test, and a repeated measures ANOVA were conducted.ResultsResults indicated that the number of inactive university students gradually decreased across the three different time points, and that a total physical activity of inactive university students significantly increased over the 12-week intervention. In addition, pros and self-efficacy significantly increased but cons gradually decreased over the intervention.ConclusionsThe current study suggests that the SNS-based physical activity-related psychological strategies have positive effects on promoting physical activity and its related psychological constructs for inactive university students.     

Developing emotion abilities and regulation strategies in a sport organization: An action research intervention

ObjectivesThis study aimed to improve the practice of individuals operating in a sport organization by providing an intervention to develop emotion abilities and strategies.DesignA two-phase action research approach was adopted to facilitate the objective and to assess the intervention's effectiveness.MethodIn the first phase of the intervention, 25 individuals fulfilling a range of roles (i.e., board of directors, chief executive officer, heads of performance and development, staff, administrators, national coaches and team managers, club coaches, national talent academy athletes) attended educational workshops over a 6 month period. In the second phase, three pivotal operators (i.e., national managers) received one-to-one coaching for a further 3 months. Data were collected using a range of self-report and performance measures, participant daily diaries, a researcher's log, and social validation interviews.ResultsFollowing social validation procedures the findings suggest that both phases were effective at improving the practice of participants, with significant improvements in regulation strategy use, perceptions of relationship quality, and closeness. However, only participants receiving the extended one-to-one coaching showed improvement in emotional intelligence ability scores.ConclusionsThe findings indicate that short-term generic interventions to promote the use of adaptive emotion regulation strategies may be effective in sport organizations, but the purposive development of emotional intelligence may require more longitudinal and idiographic approaches.     

The contribution of the Responsive Classroom Approach on children's academic achievement: Results from a three year longitudinal study

This paper reports the results of a quasi-experimental study on the contribution of the Responsive Classroom (RC) Approach to elementary school children's reading and math performance over one-, two-, and three-year periods. All children enrolled in six schools (3 intervention and 3 control schools in a single district) were the participants in the study. Children's test scores in math and reading were used as outcomes, and data on treatment fidelity were used to describe differences in use of RC practices between intervention and control schools. Findings showed that, after controlling for poverty and test scores from previous years, the RC Approach contributed to the gains in both reading and math, with math showing greater difference between the intervention and control schools. The contribution of the RC Approach appeared to be greater over a three-year period than over a one or two-year period. These findings provide early evidence for the positive contribution of the RC Approach to gains in academic achievement.     

Disruption in Pavlovian-Instrumental Transfer as a Function of Depression and Anxiety

The Pavlovian-Instrumental Transfer (PIT) paradigm examines probabilistic and reinforcement learning. Disruptions in mechanisms that mediate PIT (i.e., cues not triggering adaptive behaviors) are thought to be contributors to psychopathology, making the study of probabilistic and reinforcement learning clinically relevant. The current study evaluated an appetitive PIT effect and its relationship with symptom dimensions spanning depression and anxiety, with a particular focus on anhedonia. Forty young adults ranging in scores across dimensions of depression and anxiety symptoms completed the PIT paradigm and self-report symptom measures. The PIT paradigm consisted of three phases. The instrumental phase consisted of a contingent association in which participants squeezed a handgrip for monetary reward. The Pavlovian phase established a purely predictive association between three visual stimuli (CS?+?, CS-, baseline) and presence or absence of monetary reward. In the transfer phase, participants’ responses allowed for examination of whether motivational characteristics of Pavlovian predictors influenced the vigor of their handgrip squeezes (instrumental action), which were formerly independent of Pavlovian associations. Analyses revealed a baseline-reward PIT effect, whereby a reward-associated Pavlovian cue enhanced instrumental responding in the transfer phase. However, there were no significant differences between CS?+?and CS- or CS- and baseline cues, suggesting a disrupted interaction of Pavlovian and instrumental learning. Further, the appetitive PIT effect captured in this paradigm was not associated with anhedonia, fears, or general distress. Future work should investigate the influence of mood states using more specific appetitive PIT paradigms to further understanding of the implications of disrupted reflexive and instrumental responding.

     

Adaptive working memory training can reduce anxiety and depression vulnerability in adolescents

Adolescents can be at heightened risk for anxiety and depression, with accumulating research reporting on associations between anxiety and depression and cognitive impairments, implicating working memory and attentional control deficits. Several studies now point to the promise of adaptive working memory training to increase attentional control in depressed and anxious participants and reduce anxiety and depression symptoms, but this has not been explored in a non‐clinical adolescent population. The current study explored the effects of adaptive dual n‐back working memory training on sub‐clinical anxiety and depression symptomology in adolescents. Participants trained on either an online adaptive working memory task or non‐adaptive control task for up to 20 days. Primary outcome measures were self‐reported anxiety and depression symptomology, before and after intervention, and at 1‐month follow‐up. Self‐reported depression (p = 0.003) and anxiety (p = 0.04) decreased after training in the adaptive n‐back group relative to the non‐adaptive control group in the intention‐to‐treat sample (n = 120). These effects were sustained at follow‐up. Our findings constitute proof of principle evidence that working memory training may help reduce anxiety and depression vulnerability in a non‐clinical adolescent population. We discuss the findings’ implications for reducing risk of internalizing disorders in youth and the need for replication.     

Nicotine vs. ethanol discrimination: Extinction and spontaneous recovery of responding

Studies regarding extinction and spontaneous recovery of the discriminative stimulus effects of drugs are limited. Eight rats were initially trained to discriminate nicotine (0.4 mg/kg) vs. ethanol (800 mg/kg). For four rats, itraperitaneal (IP) administrations of nicotine fifteen minutes prior to fifteen-minute training sessions served as a discriminative stimulus (S^D) for predicting food-reinforced lever pressing (VI-1 min). On other sessions ethanol functioned in predicting nonreinforcement (S^Δ). The stimulus roles of the drugs were counterbalanced for the remaining four rats. S^Δ and S^D sessions alternated quasi-randomly with two daily sessions at 1000 and 1400 hours. Discriminative control was not disrupted following ten extinction sessions under a non-drug/saline condition, but was disrupted following extinction sessions under the original training drugs. Instances of spontaneous recovery (SR) occurred throughout extinction under the drug condtions. There was no evidence for SR two weeks following extinction, but partial recovery four weeks following the final extinction phase. Contextual status (context renewal) had neither a restorative or disruptive impact on extiguished or discriminated responding, respectively. Theser results support and extend the limited number of other studies by demonstrating extinction and spontaneous recovery of responding discriminated bytwo distinct drugs. Some theoretical interpretations regarding history effects and training in the context of drug discrimination are entertained.     

When just-world beliefs promote and when they inhibit forgiveness

The present study provides further evidence that justice and forgiveness are not necessarily competitive responses. Among 157 undergraduates instructed to recall either serious or benign transgressions, just-world beliefs for the self (BJW-self) was associated with forgiveness as inhibition of negative responding but not forgiveness as positive responding. Each of these relations was significantly moderated by transgression severity: the more benign the transgression, the stronger the relationship. Just-world beliefs for others (BJW-others) was negatively associated with inhibition of negative responding and unrelated to positive responding. These relations held over and above well-established predictors of transgression-specific forgiveness (relationship closeness and post-transgression offender effort), and an individual difference variable, justice sensitivity. In practical terms, BJW-self may enable people to better deal with minor stressors. An important theoretical implication is that modelling the relationship between just-world beliefs and forgiveness requires a bidimensional conception of both constructs.     

A new microswitch to enable a boy with minimal motor behavior to control environmental stimulation with eye blinks

This study assessed whether a boy with profound multiple disabilities and minimal motor behavior would be able to control environmental stimulation using repeated eye blinks with a newly developed microswitch (i.e. an electronically regulated optic sensor mounted on an eyeglasses frame). The study was carried out according to an ABAB design and included a 3 month post‐intervention check. Data showed that the boy had a large increase in the target response (repeated eye blinks) to activate the microswitch and produce environmental stimulation during the B (intervention) phases. This performance was maintained at the post‐intervention check. Practical and developmental implications of the findings were discussed. Copyright © 2005 John Wiley & Sons, Ltd.     

Stress-induced breakdown of an appetitive discrimination

Rats trained to discriminate between S^D and S^Δ for food reinforcement showed marked impairments in this discrimination when strong, unavoidable shocks occurred at the termination of a third stimulus. The predominant feature of this impairment was a supernormal rate of unreinforced (S^Δ) behavior. Shocks delivered without exteroceptive warning also led to a discriminative breakdown. The effect was a direct function of shock intensity. When behavior was strongly suppressed in the third stimulus by response-correlated shock (“punishment”), instead of unavoidable shock, breakdowns were only temporary; as soon as responding recovered from its overall suppression, discriminative performance returned to normal. The discriminative deterioration may be interpreted as an emotional by-product of frequent aversive stimulation, but accidental contingencies could also have played a role.     

School-Based Secondary Prevention for Children with Disruptive Behavior: Initial Outcomes

First through fourth graders from 22 suburban elementary schools were screened for cross-setting disruptive behavior as eligibility criteria for participation in a longitudinal secondary prevention study aimed at reducing the risk for serious externalizing behavioral disorders. Three hundred nine subjects participated in either a multicomponent competence enhancement intervention (MCEI) or an information/attention control (IAC) condition over a 2-year period. Following baseline measurements, initial intervention effects were assessed at the end of intervention Year 1, at the beginning of intervention Year 2 (fall of the next school year), and at the end of intervention Year 2. Multisource assessments were not supportive of the efficacy of the MCEI over the IAC condition. Children in both groups rated themselves as improved over time in terms of increased adaptive skills and decreased school problems and internalizing symptoms. Teacher and parent ratings of externalizing behavior did not yield evidence of positive change, but teachers noted improved problem solving and observers noted a decrease in behavioral interference in both groups over time, possibly as a result of maturation.