Cerebellar Substrates for Error Correction in Motor Conditioning

The authors evaluate a mapping of Rescorla and Wagner's (1972) behavioral model of classical conditioning onto the cerebellar substrates for motor reflex learning and illustrate how the limitations of the Rescorla-Wagner model are just as useful as its successes for guiding the development of new psychobiological theories of learning. They postulate that the inhibitory pathway that returns conditioned response information from the cerebellar interpositus nucleus back to the inferior olive is the neural basis for the error correction learning proposed by Rescorla and Wagner (Gluck, Myers, & Thompson, 1994; Thompson, 1986). The authors' cerebellar model expects that behavioral processes described by the Rescorla-Wagner model will be localized within the cerebellum and related brain stem structures, whereas behavioral processes beyond the scope of the Rescorla-Wagner model will depend on extracerebellar structures such as the hippocampus and related cortical regions. Simulations presented here support both implications. Several novel implications of the authors' cerebellar error-correcting model are described including a recent empirical study by Kim, Krupa, and Thompson (1998), who verified that suppressing the putative error correction pathway should interfere with the Kamin (1969) blocking effect, a behavioral manifestation of error correction learning. The authors also discuss the model's implications for understanding the limits of cerebellar contributions to associative learning and how this informs our understanding of hippocampal function in conditioning. This leads to a more integrative view of the neural substrates of conditioning in which the authors' real-time circuit-level model of the cerebellum can be viewed as a generalization of the long-term memory module of Gluck and Myers' (1993) trial-level theory of cerebellar-hippocampal interaction in motor conditioning.     

The Value of Perception

This paper develops a form of transcendental naïve realism. According to naïve realism, veridical perceptual experiences are essentially relational. According to transcendental naïve realism, the naïve realist theory of perception is not just one theory of perception amongst others, to be established as an inference to the best explanation and assessed on the basis of a cost-benefit analysis that weighs performance along a number of different dimensions: for instance, fidelity to appearances, simplicity, systematicity, fit with scientific theories, and so on. Rather, naïve realism enjoys a special status in debates in the philosophy of perception because it represents part of the transcendental project of explaining how it is possible that perceptual experience has the distinctive characteristics it does. One of the potentially most interesting prospects of adopting a transcendental attitude towards naïve realism is that it promises to make the naïve realist theory of perception, in some sense, immune to falsification. This paper develops a modest form of transcendental naïve realism modelled loosely on the account of the reactive attitudes provided by Strawson in ‘Freedom and Resentment’, and suggests one way of understanding the claim that naïve realism is immune to falsification.     

Explanations of the sex‐deviance relationship

This paper examines sex differences in school deviance and compares a cultural/socialization explanation (the machismo thesis) and structural explanations of this differential. In general, the findings show that the sex‐school deviance relationship is completely explained by differences in social controls and pressures which are structured by sex, and that machismo identity may be a mediator of this relationship for aggression but not for general school misconduct. In addition, the findings suggest that sex differences in deviance are enhanced because children tend to be influenced by same‐sexed peers.     

The Emotion Regulation Index for Children and Adolescents (ERICA): A Psychometric Investigation

There is increased recognition of the importance of children learning how to regulate emotions in a functional and adaptive manner for healthy psychological development. However, there is a paucity of tools for assessing emotion regulation during the middle childhood and adolescent years. This study reports on the psychometric evaluation of the 16-item self-report Emotion Regulation Index for Children and Adolescents (ERICA) involving a sample of 1,389 (768 girls, 621 boys) Australian children and adolescents aged 9 to 16 years. Convergent validity for the ERICA is reported with measures of self-conscious emotions (shame, guilt), empathy, childhood depressive symptomatology, and the perceived parenting dimensions of Care and Overprotection. Construct validity assessment using Principal Components Analysis and Confirmatory Factor Analysis yielded three factors: (1) Emotional Control, (2) Emotional Self-Awareness, and (3) Situational Responsiveness. The ERICA was also found to have good internal consistency and to be relatively stable over a four week test-retest period and to be sensitive to age and sex differences. It is concluded that the ERICA is a psychometrically sound measure for the assessment of the identified key aspects of emotion regulation in children and adolescents.     

The evaluative connotation of processing fluency: Inherently positive or moderated by motivational context?

A fundamental question for evaluation research is whether cues can impact evaluative responses directly or only in combination with contextual information. Focusing on the experience of processing fluency, the current work tested whether manipulating this cue’s motivational context would moderate its evaluative impact. Because fluently processed stimuli can be assumed to communicate safety, owing to implicit signals of either familiarity (through processes monitoring perception-memory coordination), we reasoned that motivation to avoid negative events should heighten preferences for fluently processed stimuli. Following a motivation manipulation, prevention-focused, but not promotion-focused, participants preferred stimuli that they were able to process quickly (Experiment 2) and that were preceded by concordant primes (Experiment 1). These findings suggest that the value of fluent processing reflects its relation to contextual features, such as one’s current motivational state.     

Actuality in Propositional Modal Logic

We show that the actuality operator A is redundant in any propositional modal logic characterized by a class of Kripke models (respectively, neighborhood models). Specifically, we prove that for every formula ${\phi}$ in the propositional modal language with A, there is a formula ${\psi}$ not containing A such that ${\phi}$ and ${\psi}$ are materially equivalent at the actual world in every Kripke model (respectively, neighborhood model). Inspection of the proofs leads to corresponding proof-theoretic results concerning the eliminability of the actuality operator in the actuality extension of any normal propositional modal logic and of any “classical” modal logic. As an application, we provide an alternative proof of a result of Williamson’s to the effect that the compound operator A□ behaves, in any normal logic between T and S5, like the simple necessity operator □ in S5.     

Reactions to Recruitment Web Sites: Visual and Verbal Attention, Attraction, and Intentions to Pursue Employment

Purpose

We investigate job seeker visual and verbal attention, and perceptions regarding company web sites in the applicant generation phase of recruitment.

Design/Methodology/Approach

We report three studies using varied methodological approaches including eye-tracking, verbal protocol analysis (VPA), and survey data.

Findings

Eye-tracking results suggest Web-based job seekers focus visual attention on information containing hyperlinks and on text more than graphic images or navigation tools. VPA suggests Web-based job seekers focus verbal attention on content more than design, especially job opening information. Survey results suggest content, design, and communication features are all related to applicant attraction. Design explains the most incremental variance in web site evaluation, while perceptions of communication features explain the most incremental variance in attitude toward the organization and intentions to pursue employment.

Implications

We provide multi-method evidence concerning features that attract applicant visual and verbal attention, and influence attraction and intentions to pursue employment. The findings also provide practical implications for designing recruitment web sites.

Originality/Value

We report three methodologically distinct perspectives on an important and timely issue: Web-based recruitment. We are aware of no other psychomotor eye-tracking studies in the recruitment literature, and only one other VPA. Combining multiple methods in this way provides unique perspective.     

Duty-Related Posttraumatic Stress Symptoms in 911 Telecommunicators: The Roles of Childhood Trauma Exposure and Emotion-Focused Coping

A history of childhood trauma exposure has been linked to the development of posttraumatic stress symptoms in adulthood following new exposure. Unhealthy coping behaviors that could develop or be utilized in response to early trauma could lend themselves to psychological issues in adulthood. Emotion-focused and problem-focused coping strategies in relation to stressful duty-related situations are examined as indirect pathways through which childhood trauma exposure could be associated with duty-related posttraumatic stress symptoms in 911 telecommunicators (N = 808). Multiple mediation models revealed that 3 of the 4 emotion-focused coping strategies, but not the problem-focused strategies, functioned as significant mediators in the association between childhood exposure and duty-related posttraumatic stress symptoms. Pairwise comparisons showed that self-controlling and escape-avoidance strategies were the strongest pathways of the indirect childhood trauma exposure–posttraumatic stress symptoms association. Implications of results regarding coping in response to new traumatic events in adulthood and potential research and intervention directions are discussed.