Developmental history and stress responsiveness are related to response inhibition,but not judgement bias,in a cohort of European starlings (Sturnus vulgaris)

Animal Cognition - Judgement bias tasks are designed to provide markers of affective states. A recent study of European starlings (Sturnus vulgaris) demonstrated modest familial effects on...     

An Inference-Based Approach to Treating Obsessive-Compulsive Disorders

This article outlines the conceptual and empirical basis for an inference-based approach (IBA) to treating obsessive-compulsive disorder (OCD). The IBA considers that in most cases the obsessional process begins with an initial doubt (e.g., “Maybe my hands are not clean”; “Perhaps the door was not locked”; “There's a chance I made an error”; “I could have harmed someone”) and that this doubt is a product of invalid reasoning. The IBA focus on initial doubt adds an extra upstream dimension to the current cognitive behavior therapy (CBT), which targets downstream appraisals, following on from the initial intrusion. Hence the aim of inference-based therapy (IBT) is to modify the reasoning narrative producing the doubt, and to return the person to the world of commonsense perception. IBT complements existing CBT and a case study illustrates the application of the IBT protocol. The IBA may be particularly useful in cases where belief in the initial probability of an obsessional doubt is strongly held and/or where consequences or appraisals following the doubt are absent or minimally associated with distress.     

Effect of fatigue on double pole kinematics in sprint cross-country skiing

The aim of the present study was to examine the effect of fatigue (physiological, mechanical, and muscular parameters) induced by a sprint simulation on kinematic parameters (cycle, phases, and joints angles) of the double pole technique. Eight elite skiers were tested for knee extensor strength and upper body power both before and after a three-bout simulation of sprint racing. They were video analyzed during the final part of the test track of bouts 1 and 3 using a digital camera. Results showed that skiers were in a fatigue state (decrease of the knee extensors voluntary force (-10.4+/-10.4%) and upper body power output (-11.1+/-8.7%) at the end of the sprint. During bout 3, the final spurt and cycle velocities decreased significantly (-7.5+/-12.3%; -13.2+/-9.5%; both p<.05). Angular patterns were only slightly modified between bouts 1 and 3 with trunk, hip, and pole angles being significantly greater for the third bout. The decrease of hip and trunk flexion and the lower inclination of the pole during the poling phase suggested a reduced effectiveness of the force application which could lead to a decrease in the cycle velocity.     

Client Adherence to Asian Cultural Values,Common Factors in Counseling,and Session Outcome With Asian American Clients at a University Counseling Center

Based on data from 61 Asian American clients at a university counseling center, the study found that client‐perceived match on client‐counselor belief about problem etiology was related to counselor credibility, empathy, and cross‐cultural competence; the client‐counselor working alliance; session depth; and the likelihood of the client recommending the counselor to another client. An interaction effect showed that both strong match on belief about problem etiology and high client expectation for counseling success were associated with strong client‐counselor working alliance.     

What Language Are We Speaking? Bion and Early Emotional Life

Bion (1970) saw his concept of ‘O’ as the central psychoanalytic perspective. It is a waking dream state, seen also as an essentially “religious” or spiritual perspective. While religious ideas may seem far afield in a discussion of fundamental elements of psychoanalysis, the word “spiritual” here refers simply to metaphysical matters of the spirit, mind, or personality, three terms used interchangeably by Bion. This essential experience of ‘O’ is seen as a selfless state, which the author clearly distinguishes from pathological states of selflessness, mindlessness, or nothingness often seen in patients who suffered early emotional trauma. Philosophical ideas about being and non-being help to clarify the difference. The challenges in finding an effective language to communicate verbally with pre-verbal states are explored through detailed clinical examples of working with often intractable states of resistance to being.

     

Maximum key-profile correlation (MKC) as a measure of tonal structure in music

Tonal structure is musical organization on the basis of pitch, in which pitches vary in importance and rate of occurrence according to their relationship to a tonal center. Experiment 1 evaluated the maximum key-profile correlation (MKC), a product of Krumhansl and Schmuckler’s key-finding algorithm (Krumhansl, 1990), as a measure of tonal structure. The MKC is the maximum correlation coefficient between the pitch class distribution in a musical sample and key profiles,which indicate the stability of pitches with respect to particular tonal centers. The MKC values of melodies correlated strongly with listeners’ ratings of tonal structure. To measure the influence of the temporal order of pitches on perceived tonal structure, three measures (fifth span, semitone span, and pitch contour) taken from previous studies of melody perception were also correlated with tonal structure ratings. None of the temporal measures correlated as strongly or as consistently with tonal structure ratings as did the MKC, and nor did combining them with the MKC improve prediction of tonal structure ratings. In Experiment 2, the MKC did not correlate with recognition memory of melodies. However, melodies with very low MKC values were recognized less accurately than melodies with very high MKC values. Although it does not incorporate temporal, rhythmic, or harmonic factors that may influence perceived tonal structure, the MKC can be interpreted as a measure of tonal structure, at least for brief melodies.     

Blind to Object Changes: When Learning the Same Object at Different Levels of Categorization Modifies Its Perception

The perceptual features people extract from objects depend on how they typically categorize them. It is now commonly acknowledged that the human perceiver can interact with the objects of his or her world at different, hierarchically organized levels of categorization. People who have learned to categorize an object as general or specific may therefore perceive different features in this object. We report two experiments that examined the hypothesis that the nature of categorization (general vs. specific) can influence the perceived properties of an identical distal object.     

TGF-β1 in Aplysia: Role in Long-Term Changes in the Excitability of Sensory Neurons and Distribution of TβR-II-Like Immunoreactivity

Exogenous recombinant human transforming growth factor β-1 (TGF-β1) induced long-term facilitation of Aplysia sensory-motor synapses. In addition, 5-HT-induced facilitation was blocked by application of a soluble fragment of the extracellular portion of the TGF-β1 type II receptor (TβR-II), which presumably acted by scavenging an endogenous TGF-β1-like molecule. Because TβR-II is essential for transmembrane signaling by TGF-β, we sought to determine whether Aplysia tissues contained TβR-II and specifically, whether neurons expressed the receptor. Western blot analysis of Aplysia tissue extracts demonstrated the presence of a TβR-II-immunoreactive protein in several tissue types. The expression and distribution of TβR-II-immunoreactive proteins in the central nervous system was examined by immunohistochemistry to elucidate sites that may be responsive to TGF-β1 and thus may play a role in synaptic plasticity. Sensory neurons in the ventral–caudal cluster of the pleural ganglion were immunoreactive for TβR-II, as well as many neurons in the pedal, abdominal, buccal, and cerebral ganglia. Sensory neurons cultured in isolation and cocultured sensory and motor neurons were also immunoreactive. TGF-β1 affected the biophysical properties of cultured sensory neurons, inducing an increase of excitability that persisted for at least 48 hr. Furthermore, exposure to TGF-β1 resulted in a reduction in the firing threshold of sensory neurons. These results provide further support for the hypothesis that TGF-β1 plays a role in long-term synaptic plasticity in Aplysia.     

Nature des représentations du langage écrit aux débuts de l'apprentissage de la lecture: un modèle interprétatif

The main objective of this study is to test a knowledge-based simulation model, elaborated in a previous longitudinal research in order to explain reading errors produced by first-grade children. This model relies on two assumptions: (1) in the beginning of the grapho-phonological acquisition, the child tries to extract, from the series of letters which forms a word, graphic patterns corresponding to an oral syllable; (2) these patterns are stored either in an ordered representation or in a non-ordered representation. Permutation errors, often pointed out in this phase of reading acquisition, would then be the mark of a non-ordered representation of the graphic patterns. Two experiments were proposed to new first-grade children, in the middle of the school year. In experiment 1, they had to detect an oral syllable in written pseudo-words in which the first trigram did or did not correspond to the legal order. In experiment 2, they had to read aloud trisyllabic pseudo-words in which the first trigram was presented in four different orders. Reading errors correspond to the predictions our model allows. Moreover, the absence of correlation between the two tasks suggests that the knowledge activated depends on the type of activity.     

Computers in psychology teaching in the U.K.

This paper describes the first year of operation of the CTI Centre for Psychology, which pro-motes the use of computers in psychology teaching in the U.K. We outline current use of computers in teaching and some of the obstacles to the effective development of computer-supported courses. In particular, we focus on the need for closer integration of innovative forms of teaching into courses. We describe the Centre’s strategy for supporting both conventional and innovative computer-supported teaching, and argue that effective use of software depends on both the instructional situation and the educational context.