The effect of language on visual contrast sensitivity

Embodied cognition and perceptual symbol theories assume that higher cognition interacts with and is grounded in perception and action. Recent experiments have shown that language processing interacts with perceptual processing in various ways, indicating that linguistic representations have a strong perceptual character. In the present study, we have used signal detection theory to investigate whether the comprehension of written sentences, implying either horizontal or vertical orientation, could improve the participants' visual sensitivity for discriminating between horizontal or vertical square-wave gratings and noise. We tested this prediction by conducting one main and one follow-up experiment. Our results indicate that language can, indeed, affect perception at such a low level of the visual process and thus provide further support for the embodied theories of cognition.     

Attachment styles in everyday social interaction

For seven days, participants described the important interactions they had using a variant of the Rochester Interaction Record and reported their attachment style using Bartholomew's four‐category system. A series of multilevel random coefficient analyses found that across all interactions securely attached participants, compared to those who were insecurely attached, found their interactions to be more intimate and more positive emotionally. Secure participants also felt that others were more responsive to them and their needs. Secure–insecure differences were most pronounced when secure and dismissive avoidant participants were compared. Differences between secure and fearful types were minimal. In contrast, differences in reactions to interactions with close and not close friends were more pronounced for fearful types than for secures, dismissing, or preoccupied types. These results highlight the importance of distinguishing fearful and dismissive avoidance. Copyright © 2002 John Wiley & Sons, Ltd.     

The contemporary face of bipolar illness: complex diagnostic and therapeutic challenges

Manic depression, or bipolar disorder, is a multifaceted illness with an inevitably complex treatment. The current article summarizes the current status of our knowledge and practice concerning its diagnosis and treatment. While the prototypic clinical picture concerns the "classic" bipolar disorder, today mixed episodes with incomplete recovery and significant psychosocial impairment are more frequent. The clinical picture of these mixed episodes is variable, eludes contemporary classification systems, and possibly includes a constellation of mental syndromes currently classified elsewhere. Treatment includes the careful combination of lithium, antiepileptics, atypical antipsychotics, and antidepressants, but not all of the agents in these broad categories are effective for the treatment of bipolar disorder.     

Behavior modification and the principle of normalization: clash or synthesis?

The aim of this article is to analyze the relationship between the principle of normalization and behavior modification with reference to the use of moderate punishment. Applying the normalization ideology through non‐aversive strategies alone has resulted in poor outcomes. Research demonstrates that moderate punishment can be a useful aid towards the development of normative interventions. In this way the negative implications of the dogmatic equation of ‘normativeness’ with non‐aversiveness on the effectiveness of intervention are avoided. Copyright © 2007 John Wiley & Sons, Ltd.     

The influence of attention on value integration

People often have to make decisions based on many pieces of information. Previous work has found that people are able to integrate values presented in a rapid serial visual presentation (RSVP) stream to make informed judgements on the overall stream value (Tsetsos et al. Proceedings of the National Academy of Sciences of the United States of America, 109(24), 9659–9664, 2012). It is also well known that attentional mechanisms influence how people process information. However, it is unknown how attentional factors impact value judgements of integrated material. The current study is the first of its kind to investigate whether value judgements are influenced by attentional processes when assimilating information. Experiments 1–3 examined whether the attentional salience of an item within an RSVP stream affected judgements of overall stream value. The results showed that the presence of an irrelevant high or low value salient item biased people to judge the stream as having a higher or lower overall mean value, respectively. Experiments 4–7 directly tested Tsetsos et al.’s (Proceedings of the National Academy of Sciences of the United States of America, 109(24), 9659–9664, 2012) theory examining whether extreme values in an RSVP stream become over-weighted, thereby capturing attention more than other values in the stream. The results showed that the presence of both a high (Experiments 4, 6 and 7) and a low (Experiment 5) value outlier captures attention leading to less accurate report of subsequent items in the stream. Taken together, the results showed that valuations can be influenced by attentional processes, and can lead to less accurate subjective judgements.     

A self-determination theory account of self-authorship: Implications for law and public policy

Self-authorship has been established as the basis of an influential liberal principle of legislation and public policy. Being the author of one’s own life is a significant component of one’s own well-being, and therefore is better understood from the viewpoint of the person whose life it is. However, most philosophical accounts, including Raz’s conception of self-authorship, rely on general and abstract principles rather than specific, individual psychological properties of the person whose life it is. We elaborate on the principles of self-authorship on the basis of self-determination theory, an empirically based psychological theory that has been at the forefront of the study of autonomy and self-authorship for more than 45 years. Our account transcends distinctions between positive and negative freedom and attempts to pinpoint the exact properties of self-authorship within the psychological processes of intrinsic motivation and internalization. If a primary objective of public policy is to support self-authorship, then it should be devised on the basis of how intrinsic motivation and internalization can be properly supported. Self-determination theory identifies three basic psychological needs: autonomy, competence, and relatedness. The satisfaction of these needs is associated with the support and growth of intrinsic tendencies and the advancement of well-being. Through this analysis, we can properly evaluate the significance of rationality, basic goods, and the availability of options to self-authorship. Implications for law and policy are discussed with an emphasis on legal paternalism and what many theorists call “liberal perfectionism,” that is, the non-coercive support and promotion of the good life.     

Examining the relationship between recreational sport participation and intrinsic and extrinsic motivation and amotivation

This study aimed at investigating the effect of motivational dimensions proposed by Pelletier, et al. in 1995, both on sport participation levels and on intention for continuing participation among adult recreational sport participants. Two hundred and fifty-seven adult individuals, who reported participation in some type of sport and physical activity, completed the Sport Motivation Scale and a scale measuring intention. The study provided evidence to suggest that increased motivation leads to increased participation. Amotivation significantly decreased from the least to the most frequent participant groups, while both extrinsic and intrinsic motivation followed the reverse pattern. The results also indicated that increased intrinsic motivation to gain knowledge and accomplishment and extrinsic motivation (introjected regulation) are positively correlated with individuals' intentions to continue participation, while amotivation is negatively related. These results provide limited support for the self-determination theory. Implications for sport participation promotion are discussed.     

Formal Requirements of Markov State Models for Paired Associate Learning

Discrete state learning models that make Markov assumptions are a powerful tool for the analysis and optimization of performance in paired associate tasks. We seek here to derive bounds on the complexity needed by such models in order to account for the critical effects of lag and retention intervals on paired associate learning. More specifically, after establishing that two different Markov chains are needed (one for describing the effects of trials where a paired associate is presented and one for describing the effects of trials where the paired associate is not presented), we determine the minimum number of states required in a Markov model with two chains. It is shown formally that, under certain psychologically plausible assumptions, more than three states are required. A model with two chains and four states is presented and it is shown empirically that it can account for the lag and retention effects in paired associate learning. Copyright 2001 Academic Press.     

Extra‐powerful on the visuo‐perceptual space,but variable on the number space: Different effects of optokinetic stimulation in neglect patients

We studied the effects of optokinetic stimulation (OKS; leftward, rightward, control) on the visuo‐perceptual and number space, in the same sample, during line bisection and mental number interval bisection tasks. To this end, we tested six patients with right‐hemisphere damage and neglect, six patients with right‐hemisphere damage but without neglect, and six neurologically healthy participants. In patients with neglect, we found a strong effect of leftward OKS on line bisection, but not on mental number interval bisection. We suggest that OKS influences the number space only under specific conditions.