Loading the problem loader: the effects of target training and shaping on trailer-loading behavior of horses.

The purpose of this study was to develop an effective method for trailer loading horses based on principles of positive reinforcement. Target training and shaping were used to teach trailer‐loading behavior to 5 quarter horse mares in a natural setting. All 5 had been trailer loaded before through the use of aversive stimulation. Successive approximations to loading and inappropriate behaviors were the dependent variables. After training a horse to approach a target, the target was moved to various locations inside the trailer. Horses started training on the left side of a two‐horse trailer. After a horse was loading on the left side, she was moved to the right side, then to loading half on the right and half on the left. A limited‐hold procedure and the presence of a companion horse seemed to facilitate training for 1 horse. Inappropriate behaviors fell to zero immediately after target training, and all the horses successfully completed the shaping sequence. Finally, these effects were observed to generalize to novel conditions (a different trainer and a different trailer).     

Research on the Effects of Violent Video Games: A Critical Analysis

The impact of violent video games on youth and adults who play these games has been a source of great controversy for years. This paper reviews the research on violent video games across three main areas: general effects on aggression, negative effects on specific high-risk populations, and effects on visuospatial cognition. Difficulties in adequately measuring constructs such as aggression are also highlighted. It is concluded that the extreme focus on general aggression effects is not supported by the current literature, and that social science's focus on general aggression effects distracts from research on specific at-risk populations, and potential positive uses of some violent video games.     

Cognitive Effects of Cancer Chemotherapy in Adult Cancer Survivors: Cognitive-Behavioral Management

Problems of memory and attention following cancer chemotherapies have gained increasing research attention in the last 2 decades. The President’s Cancer Panel and the National Coalition for Cancer Survivorship formally recognized the problem as a quality of life matter in the 1990s (Ferrell and Hassey in Oncology 11:565–576, 1997; President’s Cancer Panel in Cancer Care Issues in the United States: Quality of Care, Quality of Life, National Cancer Program, National Cancer Institute, 1999). In combination with an aging population, advances in biomedical technologies for detection and treatment of life-threatening cancers, more people than ever are living with cancer or have been diagnosed and treated for cancer. An estimated 10-million individuals living in the U.S. are considered to be in “cancer survivorship” (Institute of Medicine 2005). Given the potential large scope of the problem of cognitive effects of cancer chemotherapies, there is a strong demand to address this survivorship matter and develop methods to optimally manage it. This article will summarize the current knowledge of chemotherapy-related cognitive change and describe a developing cognitive-behavioral treatment that is being studied to aid survivors with chemotherapy-related cognitive problems.     

A link between altruism and sexual selection: Genetic influence on altruistic behaviour and mate preference towards it

Altruistic behaviour raises major questions for psychology and biology. One hypothesis proposes that human altruistic behaviour evolved as a result of sexual selection. Mechanisms that seek to explain how sexual selection works suggest genetic influence acting on both the mate preference for the trait and the preferred trait itself. We used a twin study to estimate whether genetic effects influenced responses to psychometric scales measuring mate preference towards altruistic traits (MPAT) and the preferred trait (i.e., ‘altruistic personality’). As predicted, we found significant genetic effects influencing variation in both. We also predicted that individuals expressing stronger MPAT and ‘altruistic personality’ would have mated at a greater frequency in ancestral populations. We found evidence for this in that 67% of the covariance in the phenotypic correlation between the two scales was associated with significant genetic effects. Both sets of findings are thus consistent with the hypothesized link between sexual selection and human altruism towards non‐kin. We discuss how this study contributes to our understanding of altruistic behaviour and how further work might extend this understanding.     

Introducing couples to group therapy: pursuing passion through the neo-cortex

Revolutionary developments in the study of neurobiology and relationships have led to new approaches in the treatment of couples. This paper describes a program of couples groups that utilizes a neurobiological perspective in combining education with group experience. The educational part of the program integrates findings from neurobiology, a biological view of affect dysregulation and attachment theory, and helps partners learn to slow down their physiological intensity before taking risks and exploring attachment to one another.     

An evaluation of delay to reinforcement and mand variability during functional communication training

Children with autism spectrum disorder and other developmental disabilities often exhibit invariant responding (i.e., restricted behavioral repertoires), deficits in communication, and challenging behavior. Approaches demonstrated in the basic and applied literature to increase response variability include extinction, lag schedules of reinforcement, and percentile schedules of reinforcement. Results of basic studies have also indicated that delays to reinforcement often produce increases in response variability. The purpose of the current study was to evaluate the effects of a delay to reinforcement on the variability of communication responses during functional communication training with individuals with developmental disabilities and histories of engaging in challenging behavior. Results indicated that delays to reinforcement increased mand variability with all four participants with variable effects on challenging behavior across participants.     

Examining the Utility of the New Raney Vocabulary Measure Alongside the WAIS-III

Psychometric tests related to vocabulary assessments are, for the most part, restricted in their use by trained professionals and/or are costly. These restrictions limit their use, especially for research purposes. To circumvent these limitations, the Raney Vocabulary Measure was created for assessing vocabulary proficiency, specifically for research purposes. The measure consists of 30 questions where participants were instructed to choose the best definition of each word. The purpose of the study was to examine the utility of the new measure using the highly standardized but protected Wechsler Adult Intelligence Scale. Results from the linear combination of the subscales revealed the significant prediction of the Raney Vocabulary Measure, with the Vocabulary subtest contributing most to the unique variance. These results support that the test examines vocabulary ability. The current results are promising as the test would allow for greater accessibility for researchers who do not have access to restricted psychometric tests.     

Maturation constrains the effect of exposure in linking language and thought: evidence from healthy preterm infants

The power of human language rests upon its intricate links to human cognition. By 3 months of age, listening to language supports infants’ ability to form object categories, a building block of cognition. Moreover, infants display a systematic shift between 3 and 4 months – a shift from familiarity to novelty preferences – in their expression of this link between language and core cognitive processes. Here, we capitalize on this tightly‐timed developmental shift in fullterm infants to assess (a) whether it also appears in preterm infants and (b) whether it reflects infants’ maturational status or the duration of their postnatal experience. Healthy late preterm infants (N = 22) participated in an object categorization task while listening to language. Their performance, coupled with that of fullterm infants, reveals that this developmental shift is evident in preterm infants and unfolds on the same maturational timetable as in their fullterm counterparts.     

On Love’s Robustness

Recently Philip Pettit (2015) has claimed that attachment, virtue, and respect are robust goods. Robust goods require not only the actual provision of certain associated ‘thin’ goods, but also the modally robust provision of these thin goods across a range of counterfactual situations. I focus my attention on Pettit’s account of the robust good of love, which, for Pettit, is the modally robust provision of care. I argue Pettit’s account provides neither necessary nor sufficient conditions for love. In place of Pettit’s account, I suggest an alternative account of love that distinguishes loving dispositions from loving actions.