Right-sided human prefrontal brain activation during acquisition of conditioned fear

This H2(15)O positron emission tomography (PET) study reports on relative regional cerebral blood flow (rCBF) alterations during fear conditioning in humans. In the PET scanner, subjects viewed a TV screen with either visual white noise or snake videotapes displayed alone, then with electric shocks, followed by final presentations of white noise and snakes. Autonomic nervous system responses confirmed fear conditioning only to snakes. To reveal neural activation during acquisition, while equating sensory stimulation, scans during snakes with shocks and white noise alone were contrasted against white noise with shocks and snakes alone. During acquisition, rCBF increased in the right medial frontal gyrus, supporting a role for the prefrontal cortex in fear conditioning to unmasked evolutionary fear-relevant stimuli.     

FREUD'S LETTERS TO FLIESS: FROM SEDUCTION TO SEXUAL BIOLOGY, FROM PSYCHOPATHOLOGY TO A CLINICAL ANTHROPOLOGY

The author describes the development of Freud's theory of neurosis from 1892 onwards, starting with his distinction between the actual neuroses and the psychoneuroses and his discovery of a specific, sexual aetiology for both, until which point it remained limited to pathology. The problem of the aetiology of perversion, however, confronted him with a paradox within the theory of seduction: how can an infantile sexual pleasure produce unpleasure when it is remembered at the time of puberty? This problem could not be solved within the framework of the seduction theory because the asexuality of childhood was essential to this theory. For an answer Freud had to turn to biology. He considered that the transformation of an infantile pleasure into unpleasure presupposed an organic repression of non‐genital sexual pleasure. This hypothesis of organic repression radically changed the anthropological claim of Freud's theory. As long as he was looking for a specific aetiology of neurosis and perversion, Freud's theory remained restricted to pathology. However, when he introduced infantile sexuality and its organic repression as universal organic processes, the strict distinction between normality and pathology could not be maintained. The author concludes that by turning to sexual biology, Freud transformed psychopathology into a clinical anthropology.     

Personality and Intelligence in Business People: A Study of Two Personality and Two Intelligence Measures

This study examined the overlap and correlations among two well-known personality measures (NEO-PI–R; Myers-Briggs Type Indicator, MBTI) and two widely used intelligence tests (the Graduate Management Assessment (GMA), Watson-Glaser Critical Thinking Appraisal (WGCTA)). The GMA measures both fluid intelligence (Gf) and crystallized intelligence (Gc), whereas WGCTA mainly assess Gc. A total of over 3,500 participants completed the four measures in a middle management assessment event. Correlational analysis showed that Extraversion on the MBTI tended to be associated with Openness and Stability on the NEO. Intuition was associated with Openness and Introversion. Feeling types tended to be both Agreeable and Neurotic while perceiving types were high on Openness but low on Agreeableness. The NEO Big Five factor of Openness was most consistently and significantly associated with both measures of intelligence (r = .09 to r =.12). Results from the MBTI showed that Intuition and Perceiving scores were positively and significantly associated with both intelligence test scores which were intercorrelated (r = .38). Regressional analysis showed that personality traits are logically and coherently related to intelligence test scores. Implications for selection and assessment are considered.     

Contrasting two models of academic self‐efficacy – domain‐specific versus cross‐domain – in children receiving and not receiving special instruction in mathematics

In social cognitive theory, self‐efficacy is domain‐specific. An alternative model, the cross‐domain influence model, would predict that self‐efficacy beliefs in one domain might influence performance in other domains. Research has also found that children who receive special instruction are not good at estimating their performance. The aim was to test two models of how self‐efficacy beliefs influence achievement, and to contrast children receiving special instruction in mathematics with normally‐achieving children. The participants were 73 fifth‐grade children who receive special instruction and 70 children who do not receive any special instruction. In year four and five, the children's skills in mathematics and reading were assessed by national curriculum tests, and in their fifth year, self‐efficacy in mathematics and reading were measured. Structural equation modeling showed that in domains where children do not receive special instruction in mathematics, self‐efficacy is a mediating variable between earlier and later achievement in the same domain. Achievement in mathematics was not mediated by self‐efficacy in mathematics for children who receive special instruction. For normal achieving children, earlier achievement in the language domain had an influence on later self‐efficacy in the mathematics domain, and self‐efficacy beliefs in different domains were correlated. Self‐efficacy is mostly domain specific, but may play a different role in academic performance depending on whether children receive special instruction. The results of the present study provided some support of the Cross‐Domain Influence Model for normal achieving children.     

Knowledge Under Threat

Many contemporary epistemologists hold that a subject S’s true belief that p counts as knowledge only if S’s belief that p is also, in some important sense, safe. I describe accounts of this safety condition from John Hawthorne, Duncan Pritchard, and Ernest Sosa. There have been three counterexamples to safety proposed in the recent literature, from Comesaña, Neta and Rohrbaugh, and Kelp. I explain why all three proposals fail: each moves fallaciously from the fact that S was at epistemic risk just before forming her belief to the conclusion that S’s belief was formed unsafely. In light of lessons from their failure, I provide a new and successful counterexample to the safety condition on knowledge. It follows, then, that knowledge need not be safe. Safety at a time depends counterfactually on what would likely happen at that time or soon after in a way that knowledge does not. I close by considering one objection concerning higher‐order safety.     

The Trauma Related Shame Inventory: Measuring Trauma-Related Shame Among Patients with PTSD

This article proposes a new measurement instrument of trauma-related shame. The purpose of this study is to investigate the psychometric properties of the scores derived from the Trauma Related Shame Inventory (TRSI) by means of generalizability theory (G-theory). The psychometric analyses are based on a sample of 50 patients in treatment for Post-traumatic Stress Disorder (PTSD). The results provided supporting construct validity evidence for the interpretation of TRSI as a homogeneous construct. The 24-item version of internal and external referenced shame yielded generalizability and dependability coefficients of .874 and .868, respectively. The distinction between shame and guilt was supported by a high generalizability coefficient of .812 for the difference scores between TRSI and guilt cognition scale. Further validity evidence was provided by a positive relationship between TRSI and a) self-judgment subscale in Self-Compassion Scale (SCS; Neff Self and Identity 2:(3), 223–250, 2003) and b) Beck Depression Inventory (Beck Steer and Brown 1996a) when controlled for guilt. The results of the present study provided promising support for using the 24-item version of TRSI in both clinical research and practice.     

Affective forecasting in an orangutan: predicting the hedonic outcome of novel juice mixes

Affective forecasting is an ability that allows the prediction of the hedonic outcome of never-before experienced situations, by mentally recombining elements of prior experiences into possible scenarios, and pre-experiencing what these might feel like. It has been hypothesised that this ability is uniquely human. For example, given prior experience with the ingredients, but in the absence of direct experience with the mixture, only humans are said to be able to predict that lemonade tastes better with sugar than without it. Non-human animals, on the other hand, are claimed to be confined to predicting—exclusively and inflexibly—the outcome of previously experienced situations. Relying on gustatory stimuli, we devised a non-verbal method for assessing affective forecasting and tested comparatively one Sumatran orangutan and ten human participants. Administered as binary choices, the test required the participants to mentally construct novel juice blends from familiar ingredients and to make hedonic predictions concerning the ensuing mixes. The orangutan’s performance was within the range of that shown by the humans. Both species made consistent choices that reflected independently measured taste preferences for the stimuli. Statistical models fitted to the data confirmed the predictive accuracy of such a relationship. The orangutan, just like humans, thus seems to have been able to make hedonic predictions concerning never-before experienced events.     

Deep Brain Stimulation of the Subthalamic Nucleus in Parkinson’s Disease: A Meta-Analysis of Mood Effects

Neuropsychology Review - This meta-analysis examines mood changes after bilateral subthalamic deep brain stimulation (STN-DBS) in patients with Parkinson’s disease (PD). Deep brain...