Evidence of complementary afterimages in the pigeon

Key pecking of pigeons was reinforced on a variable-interval schedule when ambient illumination came from a green light, but not when it came from a red, yellow, or white light. The different hues were randomly presented for periods of 30 sec each, with the restriction that white never followed red. After discriminative control was established, the pigeons were tested with the same procedure used during training, except that white sometimes followed red. Significantly more responses were made during white-following-red than during white following either green or yellow. These findings indicate that, in changing from red to white, complementary afterimages can be induced in pigeons for a brief period of time. By providing behavioral evidence for afterimages in the pigeon, this technique may be useful to research in comparative neurophysiology, animal discrimination learning, and theories of color vision.     

Inpatient Therapeutic Assessment With Narcissistic Personality Disorder

Growing evidence supporting the effectiveness of Collaborative/Therapeutic Assessment (C/TA) has led clinicians and researchers to apply C/TA to a variety of clinical populations and treatment settings. This case example presents a C/TA inpatient adaptation illustrated with narcissistic personality disorder. After a brief overview of salient concepts, I provide a detailed account of the clinical interview, test interpretation paired with diagnostic considerations specific to narcissism, planned intervention, and discussion of assessment results. Throughout the case study, I attempt to demonstrate defining features of C/TA, inpatient adaptations, and clinical techniques that encourage meaningful engagement with a “hard to reach” personality.     

Self-Reported Parenting of Clinic-Referred and Non-referred Mexican American Mothers of Young Children

Behavioral parent training (BPT) interventions for child behavior problems have been based on decades of research that demonstrate links between particular parent behaviors and child externalizing problems. However, the majority of this research has been conducted with European-American (EA) families, and less is known about whether these findings can be generalized to Mexican Americans (MAs). In the current study, we investigated self-reported parenting practices that have been associated with externalizing behavior problems among EA families (harsh parenting, inconsistency, and low parental warmth), to determine if those practices can also differentiate MA mothers whose young children have clinically significant behavior problems from MA mothers whose children do not have behavior problems. Participants were 115 MA families with young children, 58 with a child with clinically significant behavior problems and 57 with a child in the normal range for such problems. Results indicated that MA mothers whose children have behavior problems self-reported significantly less warmth and consistency and more harsh parenting compared to parents whose children’s behavior was in the normal range. These findings indicate that parenting behaviors that are associated with externalizing behavior problems among EA families are associated with the same problems among MA families with young children, suggesting that parent training interventions designed to target these behaviors are also likely to be relevant to MA families with children in this age range. However, findings also indicate that parenting behaviors differ depending on acculturation level, suggesting that BPT programs must respond to variation in normative parenting practices for MA families.     

Behaviorism and Society

A probable list of causes for the limited acceptance of behaviorism in our society is identified. This is followed by a summary review of the proposed solutions identified in other papers in this special issue of The Behavior Analyst, most of which relate to either better marketing of either the behavior analytic process or the results achieved as a consequence. One paper proposes a more broad conception of behavior analysis. This paper endorses the solutions identified in previous papers and then goes on to propose an even more broad conception of behavior analysis and makes the point that behavior analysis is unlikely to flourish unless behavior analysts understand a good deal more about the cultural and other contextual features of the environments in which they work.     

Exploring the associations shared by mood,pain-related attention and pain outcomes related to sleep disturbance in a chronic pain sample

Objective: Sleep disturbance in chronic pain is common, occurring in two-thirds of patients. There is a complex relationship between chronic pain and sleep; pain can disrupt sleep and poor sleep can exaggerate pain intensity. This may have an impact on both depressive symptoms and attention to pain. This study aims to evaluate the relationship between chronic pain and sleep, and the role of mood and attention.

Methods: Chronic pain patients, recruited from a secondary care outpatient clinic, completed self-report measures of pain, sleep, depressive symptoms and attention to pain. Hierarchical regression and structural equation modelling were used to explore the relationships between these measures. Participants (n = 221) were aged between 20 and 84 (mean = 52) years.

Results: The majority of participants were found to be ‘poor sleepers’ (86%) with increased pain severity, depressive symptoms and attention to pain. Both analytical approaches indicated that sleep disturbance is indirectly associated with increased pain severity Instead the relationship shared by sleep disturbance and pain severity was further associated with depressive symptoms and attention to pain.

Conclusions: Our results indicate that sleep disturbance may contribute to clinical pain severity indirectly though changes in mood and attention. Prospective studies exploring lagged associations between these constructs could have critical information relevant to the treatment of chronic pain.