Knowledge is power: How conceptual knowledge transforms visual cognition

In this review, we synthesize the existing literature demonstrating the dynamic interplay between conceptual knowledge and visual perceptual processing. We consider two theoretical frameworks that demonstrate interactions between processes and brain areas traditionally considered perceptual or conceptual. Specifically, we discuss categorical perception, in which visual objects are represented according to category membership, and highlight studies showing that category knowledge can penetrate early stages of visual analysis. We next discuss the embodied account of conceptual knowledge, which holds that concepts are instantiated in the same neural regions required for specific types of perception and action, and discuss the limitations of this framework. We additionally consider studies showing that gaining abstract semantic knowledge about objects and faces leads to behavioral and electrophysiological changes that are indicative of more efficient stimulus processing. Finally, we consider the role that perceiver goals and motivation may play in shaping the interaction between conceptual and perceptual processing. We hope to demonstrate how pervasive such interactions between motivation, conceptual knowledge, and perceptual processing are in our understanding of the visual environment, and to demonstrate the need for future research aimed at understanding how such interactions arise in the brain.     

Information Density and Dependency Length as Complementary Cognitive Models

Certain English constructions permit two syntactic alternations.

1. a. I looked up the number. b. I looked the number up.
2. a. He is often at the office. b. He often is at the office.

This study investigates the relationship between syntactic alternations and processing difficulty. What cognitive mechanisms are responsible for our attraction to some alternations and our aversion to others? This article reviews three psycholinguistic models of the relationship between syntactic alternations and processing: Maximum Per Word Surprisal (building on the ideas of Hale, in Proceedings of the 2nd Meeting of the North American chapter of the association for computational linguistics. Association for Computational Linguistics, Pittsburgh, PA, pp 159–166, 2001), Uniform Information Density (UID) (Levy and Jaeger in Adv Neural Inf Process Syst 19:849–856, 2007; inter alia), and Dependency Length Minimization (DLM) (Gildea and Temperley in Cognit Sci 34:286–310, 2010). Each theory makes predictions about which alternations native speakers should favor. Subjects were recruited using Amazon Mechanical Turk and asked to judge which of two competing syntactic alternations sounded more natural. Logistic regression analysis on the resulting data suggests that both UID and DLM are powerful predictors of human preferences. We conclude that alternations that approach uniform information density and minimize dependency length are easier to process than those that do not.     

Resilience Mediates the Relations Between Perfectionism and College Student Distress

This study examined the relations among perfectionism dimensions, resilience, and distress. Participants were 413 undergraduate students. All 3 of Hewitt and Flett's (2004) dimensions of perfectionism were associated with greater reports of depression and anxiety; however, only socially prescribed perfectionism was significantly associated with resilience. Results indicated that resilience partially mediated the relations between socially prescribed perfectionism and distress. Implications for counselors in the prevention, assessment, and treatment of depression and anxiety are discussed.     

Meaning in Life and Volunteerism in Older Adults

Researchers explored predictors of meaning in life such as physical and mental health and volunteerism in a representative sample of older adults. Measures included the Geriatric Depression Scale and the Life Regard Index. Implications for counseling older adults are discussed.     

A Comparison of Simultaneous Prompting and Constant Time Delay Procedures in Teaching State Capitals

This investigation compared the effectiveness and efficiency of constant time delay (CTD) and simultaneous prompting (SP) procedures in teaching discrete social studies facts to 4 high school students with learning and behavior disorders using an adapted alternating treatments design nested within a multiple probe design. The results indicated that both procedures were effective, with the simultaneous prompting procedure being slightly more efficient in terms of errors during instructional and maintenance phases. In addition, when interviewed about their preferences, both the instructor and participants preferred the simultaneous prompting procedure. This investigation extends current research as there are small numbers of studies comparing SP to other response prompting strategies, and to date, SP and CTD have not been compared with high school students with high-incidence disabilities. Future research issues are discussed.     

Breast and Ovarian Cancer: The Forgotten Paternal Contribution

Five to 10% of all cases of breast and ovarian cancer are attributed to a heritable genetic predisposition. Transmission of BRCA1 and BRCA2 mutations is equally likely through maternal or paternal lineage; however, fewer referrals to cancer genetics clinics appear to be made for a paternal, than maternal, family history of breast and/or ovarian cancer. To examine this potential bias, a retrospective review of 315 patient and family charts was conducted by one familial cancer clinic in Toronto, Canada. Referral letters, risk estimates, and family histories were analyzed to identify significant differences between patients referred with maternal and paternal family histories. It was determined that patients are approximately five times more likely to be referred with a maternal family history of breast and/or ovarian cancer as compared to those with a paternal family history (p = <.0001). Individuals with a paternal family history were found to have a different, and higher, pattern of risk estimates (p = .00064). No significant difference was seen between the type of referrals sent by general practitioners, oncologists, and gynecologists. Recommendations to increase the awareness of paternal family history in assessing cancer risk are provided.