Susceptibility to prosocial and antisocial influence in adolescence following mindfulness training

Mindfulness training programmes have shown to encourage prosocial behaviours and reduce antisocial tendencies in adolescents. However, less is known about whether training affects susceptibility to prosocial and antisocial influence. The current study investigated the effect of mindfulness training (compared with an active control) on self-reported prosocial and antisocial tendencies and susceptibility to prosocial and antisocial influence. 465 adolescents aged 11–16 years were randomly allocated to one of two training programmes. Pre- and post-training, participants completed a social influence task. Self-reported likelihood of engaging in prosocial and antisocial behaviours did not change post-training, and regardless of training group, participants showed a higher propensity for prosocial influence than for antisocial influence. Finally, participants were less influenced by antisocial ratings following both training programmes.     

How Simple is it for Science to Acquire Wisdom According to its Choicest Aims?

Focusing on Nicholas Maxwell’s thesis that “science, properly understood, provides us the methodological key to the salvation of humanity”, the article discusses Maxwell’s aim oriented empiricism and his conception of Wisdom Inquiry as advocated in Maxwell’s (2009b, pp.1–56) essay entitled “How Can Life of Value Best Flourish in the Real World?” (in Science and the Pursuit of Wisdom: Studies in the Philosophy of Nicholas Maxwell 2009, edited by Leemon McHenry) and in Maxwell (2004 & 2009a).     

A valence-specific lateral bias for discriminating emotional facial expressions in free field

Findings from subjects with unilateral brain damage, as well as from normal subjects studied with tachistoscopic paradigms, argue that emotion is processed differently by each brain hemisphere. An open question concerns the extent to which such lateralised processing might occur under natural, freeviewing conditions. To explore this issue, we asked 28 normal subjects to discriminate emotions expressed by pairs of faces shown side-by-side, with no time or viewing constraints. Images of neutral expressions were shown paired with morphed images of very faint emotional expressions (happiness, surprise, disgust, fear, anger, or sadness). We found a surprising and robust laterality effect: When discriminating negative emotional expressions, subjects performed significantly better when the emotional face was to the left of the neutral face; conversely, when discriminating positive expressions, subjects performed better when the emotional face was to the right. We interpret this valence-specific laterality effect as consistent with the idea that the right hemisphere is specialised to process negative emotions, whereas the left is specialised to process positive emotions. The findings have important implications for how humans perceive facial emotion under natural conditions.     

Predictive and incremental validity of the Violence Risk Appraisal Guide scores with male and female jail inmates

The present study examines the predictive and incremental validity of Violence Risk Appraisal Guide scores in a sample of 328 male and 145 female jail inmates held on felony charges. Significant gender differences were observed in VRAG item and total score means, as well as in correlations between the VRAG and concurrent measures of aggression. VRAG scores significantly predicted institutional misconduct during incarceration and recidivism in the first year postrelease for male inmates but not for female inmates. In terms of incremental validity, VRAG scores predicted institutional misconduct and recidivism beyond that accounted for by psychopathy for male inmates but not for female inmates. Implications for clinical practice and future research are discussed.     

Reflections on the Meaning and Structure of the Horizontal/Vertical Distinction

The commentaries by Aaker (2006), Meyers‐Levy (2006), and Oyserman (2006) extend the implications of the horizontal/vertical distinction described in our article (Shavitt, Lalwani, Zhang, & Torelli, 2006) in a number of interesting directions. We join these authors in calling for further research on horizontal and vertical individualism and collectivism constructs. We also highlight conceptual and structural issues that remain to be resolved and evaluate priming and other operational approaches to the study of horizontal and vertical individualism and collectivism.     

Susceptibility to induction of long-term depression is associated with impaired memory in aged Fischer 344 rats

The current study employed aged and young male Fischer 344 rats to examine the relationship between long-term depression (LTD), age, and memory. Memory performance was measured on two tasks that are sensitive to hippocampal function; inhibitory avoidance and spatial discrimination on the Morris water maze. The slope of the extracellular excitatory postsynaptic field potential was recorded from CA3-CA1 synapses in hippocampal slices. Low frequency stimulation (LFS) induced a modest LTD only in aged animals under standard recording conditions. The decrease in synaptic transmission examined only in aged animals correlated with memory scores on the spatial task and LTD was not observed in aged animals with the highest memory scores. LTD induction was facilitated by increasing the Ca(2+)/Mg(2+) ratio of the recording medium or employing a paired-pulse stimulation paradigm. Age differences disappeared when LFS was delivered under conditions of elevated Ca(2+)/Mg(2+) in the recording medium. Using multiple induction episodes under conditions which facilitate LTD-induction, no age-related difference was observed in the maximum level of LTD. The results indicate that the increased susceptibility to LTD induction is associated with impaired memory and results from a shift in the induction process. The possible relationship between LTD and memory function is discussed.     

The ego dilemma and the Buddhist experience of enlightenment

The author examines the core problem of existence, the dread of nonbeing, from the standpoint of object-relations theory and subsequently demonstrates that the experience of enlightenment, emerging from religious mysticism, may be seen as the resolution of this basic human problem. The investigation of the experience of enlightenment is pursued from the perspective of Buddhism, a subject with which the author is most familiar.Ashok Kara, Ph.D., is a psychologist at the Southeast Memphis Mental Health Center and is also in part-time private practice.     

Organizational features of a young child's behaviors

The study was designed to investigate the nature of response-class phenomena and the possibility of indirect contingency control. A single subject was employed. Prior to the start of the study, the experimenter established the process of maintaining stimulus constancy during a preexperimental phase. Subsequent to the first baseline phase, a factor analysis was done to define the response class and the behavior categories constituting the class. Manipulating a single adult consequence to a response-class category over subsequent baseline and manipulation phases revealed frequency changes in all behavior categories in the response class. The data gave support to indirect behavior control. Search for possible explanations of frequency changes showed that the direction of the frequency changes were predictable from the results of the factor analysis.     

Male HIV-1 transgenic rats show reduced cocaine-maintained lever-pressing compared to F344 wildtype rats despite similar baseline locomotion

The HIV-1 transgenic (Tg) rat model is valuable for understanding HIV-associated neurocognitive disorders (HAND) and accompanying substance use and misuse. Tg and F344/NHsd wildtype (WT) rats were allowed to self-administer intrajugular cocaine. For the first 7 sessions, neither genotype self-administered cocaine (0.1 mg/kg/infusion) on a fixed ratio 1 schedule. We thus implemented a lever–cocaine “autoshaping” session followed by a series of manipulations changing dose and reinforcement schedule. Tg rats self-administered much less cocaine than WT rats throughout the study. Of 8 Tg rats, 5 modestly increased self-administration from sessions 36–50. Of those, only 3 showed a lever discrimination. Of 10 WT rats, 8 acquired robust self-administration by session 19; all WT rats self-administered cocaine by the end of the study. WT and Tg rats had similar baseline locomotor activity in the self-administration chamber suggesting that the low levels of cocaine intake in the Tg rats did not reflect a nonspecific motor impairment in this rat strain. Concomitant measurement of activity with self-administration revealed activity increases that followed increased cocaine intake. That relation held in Tg rats. Therefore, the present study provides evidence that HIV-1 Tg rats are less sensitive to the reinforcing effects of cocaine than their F344 WT counterparts.