The process of perceptual retouch: Nonspecific afferent activation dynamics in explaining visual masking

A model for visual masking based on the notion of interaction of the specific and nonspecific afferent visual systems is presented. Discussion is focused on nonmonotonic masking functions. In particular, it is proposed that in order for visual information (patterns, forms, etc.) to be consciously perceived, both specific retina-genicula-striate impulses and nonspecific retina-reticulacortical impulses should converge in the same cortical space. Nonspecific activity is shown to be necessary for subjective awareness. This activity is shown to be of longer latency than specific activity. It is concluded that trailing conscious-experience-generating impulses are elicited by collateral activity from the specific information received from thefirst stimulus. These impulses reach the cortex at the same moment as the specific activity of thesecond (masking) stimulus as coded, which has a relatively higher signal-to-noise ratio in the given retinotopically specified cortical space. Consequently, subjects consciously perceive the second stimulus. This operation of awareness generation is termedperceptual retouch and is considered as a special psychological mechanism worthy of psychophysical study.     

CONTRIBUTION A UNE ETUDE COMPARATIVE DES GARCONS ET DES FILLES EN FRANCE*

The sample of subjects and the modifications to the general research design due to local pecularities are described. From the analyses on the four questionnaires emerges an effect of sex on the following variables: Desired Number of Children (F> M), Masculinity (M > F), Femininity (M < F), Willing to compote (M > F) and five professional values from the fifteen. There is also an effect of the technical versus college samples on Educational Aspirations and Expectations, on Masculinity for self (but only for the older subjects) and on seven professional values. Positive correlations are obtained (for males and females, separately) between age, on the one hand, and Educational Aspirations, Educational Expectations, and the valorisation of Variety, on the other hand. The relationships between age, on the one hand, and Competition and Prestige, on the other hand, decrease as a function of age. For males, the value of Work decreases with age. For females, Masculinity as well as Work Security both decrease with age while the values of Independency and Creativity increase. Although the correlational analyses suggest some differences between males and females, the strongest correlations are common to both sexes. A preliminary study has been carried out on the effect of social environment.     

Infants' discrimination of faces by using biological motion cues

We report two experiments in which we used animated averaged faces to examine infants' ability to perceive and discriminate facial motion. The faces were generated by using the motion recorded from the faces of volunteers while they spoke. We tested infants aged 4-8 months to assess their ability to discriminate facial motion sequences (condition 1) and discriminate the faces of individuals (condition 2). Infants were habituated to one sequence with the motion of one actor speaking one phrase. Following habituation, infants were presented with the same sequence together with motion from a different actor (condition 1), or a new sequence from the same actor coupled with a new sequence from a new actor (condition 2). Infants demonstrated a significant preference for the novel actor in both experiments. These findings suggest that infants can not only discriminate complex and subtle biological motion cues but also detect invariants in such displays.     

Retrieval induces hippocampal-dependent reconsolidation of spatial memory

Nonreinforced retrieval can cause extinction and/or reconsolidation, two processes that affect subsequent retrieval in opposite ways. Using the Morris water maze task we show that, in the rat, repeated nonreinforced expression of spatial memory causes extinction, which is unaffected by inhibition of protein synthesis within the CA1 region of the dorsal hippocampus. However, if the number of nonreinforced retrieval trials is insufficient to induce long-lasting extinction, then a hippocampal protein synthesis-dependent reconsolidation process recovers the original memory. Inhibition of hippocampal protein synthesis after reversal learning sessions impairs retention of the reversed preference and blocks persistence of the original one, suggesting that reversal learning involves reconsolidation rather than extinction of the original memory. Our results suggest the existence of a hippocampal protein synthesis-dependent reconsolidation process that operates to recover or update retrieval-weakened memories from incomplete extinction.     

Variations in backward masking with different masking stimuli: I. Local interaction versus attentional switch

The types of stimuli used as targets and masks considerably change the masking functions in a way that requires us to abandon any single mechanism of masking as the sole explanation of backward masking. In the first of two reports in which the problem of the mask-dependence of masking is addressed, we explore the role of the relative spatial positioning of targets and masks in order to differentiate between local interaction and attentional models. If single letters were masked by double-letter masks then the relative spatial arrangement of the letters, which was changed in order to vary the involvement of metacontrast-like processes, had an effect at shorter SOAs, but not at longer SOAs where strong masking still persisted. This poses difficulties for proposing local contour interaction as the main mechanism of masking. Similarly, crowding effects alone cannot explain the results. Backward masking also involves attention being directed to working-memory processing of the succeeding object while abandoning the preceding object.     

EMOTIONAL CONTAGION Gender and Occupational Differences

Theorists have proposed that men and women and those in various occupational groups should differ in their susceptibility to primitive emotional contagion. Study 1 was designed to explore the extent to which gender and occupation affected respondents' self-reports of emotional contagion, as measured by the Emotional Contagion (EC) scale. As predicted, women in a variety of occupations secured higher total EC scores than did men. Study 2 was designed to determine the extent to which gender affected self-reports of emotional contagion (again as measured by the EC scale) and actual responsiveness to others' emotions. As predicted, women received higher EC scores, reported sharing the targets' emotions to a greater extent, and were rated by judges as displaying more emotional contagion than did men.     

Co‐Occurring Disorders in Treatment‐Based Courts: Results of a National Survey

Drug courts and mental health courts have expanded rapidly in the past several decades to provide more efficient coordination of treatment and supervision of offenders with behavioral health problems. A significant number of offenders in these court‐based programs have co‐occurring mental and substance use disorders, which predict early termination, relapse, rearrest, and other negative outcomes. A web‐based national survey examined programmatic adaptations for co‐occurring disorders (CODs) among 54 drug courts, mental health courts, and freestanding COD dockets. COD dockets were smaller and of longer duration, and provided more intensive services than programs situated in drug courts or in mental health courts. However, more similarities than differences were noted across the different types of court‐based program. Key adaptations for CODs included extended program duration, highly intensive and integrated treatment, smaller, less formal, and more frequent hearings, and use of specialized supervision teams and dually credentialed staff. Copyright © 2012 John Wiley & Sons, Ltd.     

Anxiety Sensitivity and Negative Interpretation Biases: Their Shared and Unique Associations with Anxiety Symptoms

Anxiety sensitivity (AS) is a psychological risk factor for anxiety disorders. Negative interpretation biases are a maladaptive form of information-processing also associated with anxiety disorders. The present study explored whether AS and negative interpretation biases make independent contributions to variance in panic and generalized anxiety symptoms and whether particular interpretation bias domains (e.g., of ambiguous arousal sensations) have specific associations with panic and/or generalized anxiety symptoms. Eighty-nine female undergraduates (44 low AS; 45 high AS) completed measures of AS, interpretation biases, and panic and generalized anxiety symptoms. Findings showed that AS and negative interpretation biases both significantly added to the prediction of anxiety symptoms. Negative interpretations of ambiguous arousal sensations were uniquely associated with panic symptoms, while negative interpretations of ambiguous general and social events were uniquely associated with generalized anxiety symptoms. Findings support the conceptual validity of AS and negative interpretation biases and their unique and shared contributions to anxiety symptoms.     

A quarter of a century of job transitions in Germany

By examining trends in intra-organizational and inter-organizational job transition probabilities among professional and managerial employees in Germany, we test the applicability of mainstream career theory to a specific context and challenge its implied change assumption. Drawing on data from the German Socio-Economic Panel (GSOEP), we apply linear probability models to show the influence of time, economic cycle and age on the probability of job transitions between 1984 and 2010. Results indicate a slight negative trend in the frequency of job transitions during the analyzed time span, owing to a pronounced decrease in intra-organizational transitions, which is only partly offset by a comparatively weaker positive trend towards increased inter-organizational transitions. The latter is strongly influenced by fluctuations in the economic cycle. Finally, the probability of job transitions keeps declining steadily through the course of one's working life. In contrast to inter-organizational transitions, however, this age effect for intra-organizational transitions has decreased over time.