Personality in Barbary macaques (Macaca sylvanus): Temporal stability and social rank

Tracing the evolutionary origins of species-specific personality structures requires comparative personality research. We used a 51 item questionnaire to examine the personality structure of 26 semi-free-ranging Barbary macaques assessed at two time points. Principal-components analysis revealed four dimensions: Friendliness, Activity/Excitability, Confidence, and Opportunism. These dimensions were reliable across raters, stable over time, and both similar to and different from the personality dimensions of free-ranging rhesus macaques and male Hanuman langurs. We modeled the relationships between Confidence and a behavioral measure of rank at both time points. The stability of rank over time could be explained by Confidence but not vice versa. These findings highlight how interspecies differences in personality structure reflect personality evolution and how rank is related to personality.     

Increased sensitivity to proactive and retroactive interference in amnestic mild cognitive impairment: new insights

Background

Increased sensitivity to proactive (PI) and retroactive (RI) interference has been observed in amnestic mild cognitive impairment (aMCI). PI and RI are often explained as being the result of a response competition mechanism. However, patients with aMCI are supposed to suffer mostly from encoding deficits. We hypothesized that in aMCI interference may occur at encoding and not only at the retrieval stage.

Material and methods

We developed an original paradigm enabling PI and RI to be tested with and without response competitors. Eighteen young controls (YC), 16 elderly controls (EC) and 15 aMCI participated in the study.

Results

The YC and EC groups presented interference effects only in conditions that included a direct response competitor. In contrast, aMCI had interference effects in all conditions including the one without response competitor.

Conclusion

Increased sensitivity to interference in aMCI appears to occur at the encoding/consolidation stage and not only at the retrieval stage, as is the case in healthy subjects. This result is discussed in the context of the associative encoding deficits characterizing aMCI.     

Do extraverts get more bang for the buck? Refining the affective-reactivity hypothesis of extraversion

One of the most robust observations in personality and emotion research is the finding that extraverts are happier than introverts. Some theorists have attributed this to differential reactivity of the brain reward system, which is central to many biologically inspired models of extraversion. This affective-reactivity hypothesis, which suggests that extraverts should be more susceptible to the induction of positive affect, has so far received very mixed empirical support. In this article, we consider a more biologically plausible account of extraverts' affective-reactivity. Over 5 experiments, we demonstrate that extraverts show greater affective-reactivity only in response to clearly appetitive stimuli and situations (e.g., where rewards are being pursued). Conversely, after merely pleasant stimuli and situations (without any reward-approach element), extraverts and introverts respond similarly. We also show that it is specifically activated affect (e.g., feelings of alertness), rather than pleasantly valenced affect (e.g., feelings of contentment), that characterizes the affective-reactivity of extraverts. Such reactions may potentially facilitate the reward-seeking behavior associated with extraversion, but they seem unlikely to explain the broadly happy disposition of extraverts.     

Motivation as a predictor of outcomes in school‐based humanistic counselling

Background: Recent years have seen a growth in the provision of counselling within UK secondary schools, and research indicates that it is associated with significant reductions in psychological distress. However, little is known about the moderators and mediators of positive therapeutic benefit. In the field of adult mental health, motivation has been found to be one of the strongest predictors of therapeutic outcomes, and it was hypothesised that this may also be a predictor of outcomes for young people in school‐based counselling services. Aims: To assess the relationship between young people's motivation for counselling and its effectiveness within a secondary school setting. Sample: Eighty‐one young people (12–17 years old) who attended school‐based humanistic counselling services in Scotland. Method: Clients completed a measure of motivation for counselling at the commencement of their therapeutic work and a measure of psychological wellbeing at the commencement and termination of counselling. Results: Motivation for counselling was not found to be significantly related to outcomes. Discussion: The results indicate that the association between motivation and outcomes may be weaker in young people as compared with adults. However, a number of design factors may also account for the non‐significant findings: insufficient participants, marginal reliability of the motivation measure and social desirability effects.     

The Things We Carry: Finding/Creating the Object and the Analyst’s Self-Reflective Participation

I reflect on the interaction between the analyst’s dedicated attention to the patient’s internal object relations and the analyst’s self-reflective participation. Our stops and starts of attention to the patient’s internal objects and our own is in some sense one of the most important elements of our personal participation. I suggest that the patient’s and analyst’s needs for privacy and the illusion of privacy in the presence of the other, undertheorized within relational theory, is not at odds with an emphasis on valuing the patient’s capacity for a “read” on the analyst. Needs for privacy and the illusion of privacy held by patient and analyst need to be integrated into any psychoanalytic theory and form part of the basis of intimate regulatory systems between two people.     

A Model for the Role of Defined Spirituality in South African Specialist Psychiatric Practice and Training

The current bio-psycho-social approach in South African psychiatry refers to Engel’s extended model of health care. It forms the basis of the existing collaboration between medicine, nursing, psychology, occupational therapy and social work. Psychiatry also has to bridge the multi-cultural, multi-religious and spiritual diverse reality of everyday practice. It has become important to establish how, within accepted boundaries, spirituality should be incorporated into the model for practice. Referring to methods described for nursing theory development, a defined core concept was used to construct a model. It may contribute to the discourse on spirituality in local psychiatry, health and mental health.     

Testing a multidimensional model of putative evolved human motives

The Assessment of Individual Motives-Questionnaire (AIM-Q) was designed to assess 15 latent dimensions based on a relatively new evolutionary theory of human motivation. The present studies are the first to examine these dimensions using confirmatory factor analysis in an attempt to test the model proposed by the theory. Study 1 (N = 1,411) explored ways of producing a short version tapping the 15 dimensions. Fit indices suggested that a model consisting of 60 items tapping 15 weak to moderately correlated dimensions best described the data. Four alternative models that tested a completely orthogonal structure and a unidimensional structure were found to poorly represent the data. Study 2 (N = 490) successfully cross-validated the 60-item 15 dimension version using a different sample. These results support the multidimensional motivational theory on which the AIM-Q is based as well as the shorter version used to assess its dimensions.