Contrasting accounts of direction and shape perception in short-range motion: Counterchange compared with motion energy detection

It has long been thought (e.g., Cavanagh & Mather, 1989) that first-order motion-energy extraction via space-time comparator-type models (e.g., the elaborated Reichardt detector) is sufficient to account for human performance in the short-range motion paradigm (Braddick, 1974), including the perception of reverse-phi motion when the luminance polarity of the visual elements is inverted during successive frames. Human observers’ ability to discriminate motion direction and use coherent motion information to segregate a region of a random cinematogram and determine its shape was tested; they performed better in the same-, as compared with the inverted-, polarity condition. Computational analyses of short-range motion perception based on the elaborated Reichardt motion energy detector (van Santen & Sperling, 1985) predict, incorrectly, that symmetrical results will be obtained for the same- and inverted-polarity conditions. In contrast, the counterchange detector (Hock, Schöner, & Gilroy, 2009) predicts an asymmetry quite similar to that of human observers in both motion direction and shape discrimination. The further advantage of counterchange, as compared with motion energy, detection for the perception of spatial shape- and depth-from-motion is discussed.     

Anxiety sensitivity cognitive concerns drive the relation between anxiety sensitivity and symptoms of depression

Depression is typically treated as a homogeneous construct despite evidence for distinct cognitive, affective, and somatic symptom dimensions. Anxiety sensitivity (AS; the fear of consequences of anxiety symptoms) is a cognitive risk factor implicated in the development of depressive symptoms. However, it is unclear how lower order AS dimensions (i.e. physical, cognitive, and social concerns) relate to depressive symptom factors. Confirmatory factor analysis, followed by structural equation modeling, were conducted to examine the factor structure of depression and to then examine the relations between these factors and the lower order factors of AS. This study was conducted in a sample of 374 adults (M age = 35.5, 54.3% female) with elevated levels of psychopathology (89.2% meeting criteria for at least one DSM-5 diagnosis, 25.6% primary depressive disorder). In this study a two-factor model of depression, composed of Cognitive and Affective/Somatic factors, was superior to one- and three-factor solutions. AS cognitive concerns were related to both cognitive and affective/somatic symptoms of depression. Neither of the other AS dimensions was related to depression symptom dimensions. These findings provide a better understanding of the relations between AS and depression symptoms.     

COVID-19 Impact Battery: Development and Validation

In addition to impacting the physical health of millions of Americans, the novel-coronavirus (COVID-19) pandemic is a significant psychological stressor due to both the threat of the illness itself and the mitigation strategies used to contain the spread. To facilitate understanding of the impact of COVID-19, validated measures are needed. Using a stepwise procedure in line with best-practice measurement procedures, the current report summarizes the procedures employed to create the COVID-19 Impact Battery (CIB). Two independent samples recruited via Amazon Mechanical Turk (N?=?175, N?=?642) and a third community sample (N?=?259) were used for reliability and validity testing. Validation procedures yielded a battery consisting of three scales assessing COVID-19 related behaviors, worry, and disability. The behaviors scale contains three subscales assessing stockpiling, cleaning, and avoidance. The worry subscale also contains three subscales assessing health, financial and catastrophic concerns. In addition, we created a short version of the battery (CIB-S) to allow for more flexibility in data collection. In summary, we have provided reliability and validity information for the CIB and CIB-S, demonstrating that these measures can facilitate evaluation of the broad impact of COVID-19 on mental health functioning.

     

The Theory of Planned Behavior and Breast Self-Examination: Distinguishing Between Perceived Control and Self-Efficacy

This paper reports an application of the theory of planned behavior (TPB) to the prediction of breast self-examination (BSE) intentions and behavior. The study also considered the distinction between perceived control and self-efficacy within the TPB and the additional predictive utility of past behavior. A sample of 95 women completed questionnaires based on the TPB and were followed up at 1 month. Support for the distinction between perceived control and self-efficacy was provided by principal components analysis. The TPB was found to be highly predictive of intention to perform BSE and subsequent BSE behavior. Regression analyses revealed self-efficacy and attitude to be predictive of intention to perform BSE. Intention, in turn, was the sole predictor of BSE at 1-month follow-up. Past behavior was found to explain additional variance in intention, but not BSE behavior at 1-month follow-up. The results are discussed in relation to the conceptual status of the perceived behavioral control construct, and the practical implications of the results are highlighted.     

Using portfolios to enhance career resilience

Two groups of government workers were involved in career portfolio development workshops that were designed to expand the workers' thinking about their career accomplishments, enhance their sense of career resilience, and create portfolios. Focus groups conducted after the workshops indicated that participants began to engage in “portfolio thinking” and to think of an expanded range of career options, which were reflective of increased levels of career resilience.     

The Differential Assessment of State–Trait Anxiety and Depression in a Clinically Anxious Sample

Empirical investigation into anxiety and depression has led some researchers to question the conceptual distinctness of these constructs. N. S. Endler, B. J. Cox, J. D. A. Parker, and R. M. Bagby (1992) provided empirical evidence that state and trait anxiety (using the Endler Multidimensional Anxiety Scales; N. S. Endler, J. M. Edwards, and R. Vitelli, 1991) may be differentiated from depression (using the Beck Depression Inventory; A. T. Beck, 1978) in a student sample. The present study extended this research by employing a different sample, a clinical sample of panic disorder patients (N = 189). Further support for the conceptual distinctness of anxiety and depression is presented herein. The concept of a general distress factor that encompasses both constructs is also discussed.     

Learning strategy trumps motivational level in determining learning-induced auditory cortical plasticity

Associative memory for auditory-cued events involves specific plasticity in the primary auditory cortex (A1) that facilitates responses to tones which gain behavioral significance, by modifying representational parameters of sensory coding. Learning strategy, rather than the amount or content of learning, can determine this learning-induced cortical (high order) associative representational plasticity (HARP). Thus, tone-contingent learning with signaled errors can be accomplished either by (1) responding only during tone duration (“tone-duration” strategy, T-Dur), or (2) responding from tone onset until receiving an error signal for responses made immediately after tone offset (“tone-onset-to-error”, TOTE). While rats using both strategies achieve the same high level of performance, only those using the TOTE strategy develop HARP, viz., frequency-specific decreased threshold (increased sensitivity) and decreased bandwidth (increased selectivity) (Berlau & Weinberger, 2008). The present study challenged the generality of learning strategy by determining if high motivation dominates in the formation of HARP. Two groups of adult male rats were trained to bar-press during a 5.0 kHz (10 s, 70 dB) tone for a water reward under either high (HiMot) or moderate (ModMot) levels of motivation. The HiMot group achieved a higher level of correct performance. However, terminal mapping of A1 showed that only the ModMot group developed HARP, i.e., increased sensitivity and selectivity in the signal-frequency band. Behavioral analysis revealed that the ModMot group used the TOTE strategy while HiMot subjects used the T-Dur strategy. Thus, type of learning strategy, not level of learning or motivation, is dominant for the formation of cortical plasticity.     

The Association Between Self-Control and Hoarding: A Case Report

The capacity to exert control over one's behavior is known as self-control, and this ability to self-regulate is a necessary component for directing personal behavior toward achieving a specific goal. Baumeister and colleagues have suggested that self-control operates within a resource model such that an individual may strengthen this resource through directed practice. Hoarding is one syndrome wherein self-control may play a substantial role. Within a translational research framework, two separate case studies sought to determine if practicing self-control in a non-hoarding-related domain might have an impact on an individual's hoarding symptoms and their readiness for treatment. Two individuals diagnosed with hoarding were enrolled in a self-control practice condition. Both self-control levels and hoarding symptoms were measured at pre– and post–time points using self-report and behavioral indices. Findings in support of a favorable effect of self-control on mitigating behavioral hoarding symptoms were mixed, with 1 patient experiencing marked improvement in symptoms and the other not. We also found that self-control practice was associated with both increased motivation for treatment and overall level of self-awareness. The implications of self-control for hoarding are discussed from a disease-reduction and prevention standpoint, along with the role self-control might play within more traditional cognitive behavioral interventions.