The role of recollection in source memory: an examination of schizophrenia patients and their first-degree relatives

Source recognition memory deficits have repeatedly been observed in people with schizophrenia (SZ), and have also recently been observed in their first-degree relatives. These deficits have been hypothesized to result, at least in part, from impairments in the conscious recollection process. Although other processes are clearly also affected in SZ, it has been proposed that impairments in the conscious recollection process could be a parsimonious explanation for the source memory deficits observed in their relatives. Here, we tested 25 patients with SZ and 34 of their non-affected parents, as well as two groups of matched healthy controls, on a short-term associative memory task that shares the characteristics of standard source recognition tasks but minimizes the need for recollection of stored information from memory. This task was administered in order to determine if deficits can still be observed in these people when involvement of the conscious recollection process is minimized. We observed deficits on our short-term source memory task in people with SZ, but their first-degree relatives did not share this deficit. These results support the idea that multiple memory processes supporting associative/source memory are affected in SZ, whereas the source memory deficits previously observed in relatives of SZ seem specific to tasks that rely on the conscious recollection process.     

Comprehension of argument structure and semantic roles: evidence from English-learning children and the forced-choice pointing paradigm

Research using the intermodal preferential looking paradigm (IPLP) has consistently shown that English-learning children aged 2 can associate transitive argument structure with causal events. However, studies using the same methodology investigating 2-year-old children's knowledge of the conjoined agent intransitive and semantic role assignment have reported inconsistent findings. The aim of the present study was to establish at what age English-learning children have verb-general knowledge of both transitive and intransitive argument structure using a new method: the forced-choice pointing paradigm. The results suggest that young 2-year-olds can associate transitive structures with causal (or externally caused) events and can use transitive structure to assign agent and patient roles correctly. However, the children were unable to associate the conjoined agent intransitive with noncausal events until aged 3;4. The results confirm the pattern from previous IPLP studies and indicate that children may develop the ability to comprehend different aspects of argument structure at different ages. The implications for theories of language acquisition and the nature of the language acquisition mechanism are discussed.     

Inverting faces does not abolish cultural diversity in eye movements

Face processing is widely understood to be a basic, universal visual function effortlessly achieved by people from all cultures and races. The remarkable recognition performance for faces is markedly and specifically affected by picture-plane inversion: the so-called face-inversion effect (FIE), a finding often used as evidence for face-specific mechanisms. However, it has recently been shown that culture shapes the way people deploy eye movements to extract information from faces. Interestingly, the comparable lack of experience with inverted faces across cultures offers a unique opportunity to establish the extent to which such cultural perceptual biases in eye movements are robust, but also to assess whether face-specific mechanisms are universally tuned. Here we monitored the eye movements of Western Caucasian (WC) and East Asian (EA) observers while they learned and recognised WC and EA inverted faces. Both groups of observers showed a comparable impairment in recognising inverted faces of both races. WC observers deployed a scattered inverted triangular scanpath with a bias towards the mouth, whereas EA observers uniformly extended the focus of their fixations from the centre towards the eyes. Overall, our data show that cultural perceptual differences in eye movements persist during the FIE, questioning the universality of face-processing mechanisms.     

Billing for Medical Genetics and Genetic Counseling Services: A National Survey

In January 2007 the American Medical Association added a new Current Procedural Terminology® (CPT) code, 96040, for “Medical Genetics and Genetic Counseling Services.” In order to identify the impact of having this new code and to identify issues with implementation of the code, the National Society of Genetic Counselors (NSGC) CPT® Working Group surveyed NSGC members using an internet-based survey tool. The majority of respondents (94%) reported being aware of the new code and over half of the respondents (69%) said they were billing for genetic counseling. Approximately 24% of those billing reported using 96040. Many facilities are not using this code and the reported success of billing using 96040 is highly varied. Continued education may be beneficial to encourage reimbursement for 96040 and follow up is needed to assess the ongoing implementation and impact of the new CPT® code.     

The Relationship Between School-Leisure Conflict and Educational and Mental Health Indexes: A Motivational Analysis

The purpose of the present study was to test a motivational model that explains the relationship between school-leisure conflict and indicators of educational functioning and mental health using structural equation modeling with a sample of college students. Results provided support for the proposed model. Experiencing a conflict between education and leisure contexts was negatively predicted by having a self-determined motivation for school, while self-determined motivation for leisure activities was unrelated to the experience of such a conflict. A school-leisure conflict, in turn, was associated with poorer academic consequences (poor concentration at school, academic hopelessness, few intentions of pursuing in school), which were associated with higher levels of depression and low life satisfaction. Importantly, the proposed theoretical model was supported for both men and women. Results are discussed in terms of self-determination theory (Deci & Ryan, 1985, 1991, 2000) and the hierarchical model of intrinsic and extrinsic motivation (Vallerand, 1997).     

Sequence Memory in Music Performance

Abstract— How do people remember and produce complex sequences like music or speech? Music provides an example of excellent sequence memory under fast performance conditions; novices as well as skilled musicians can perform memorized music rapidly, without making mistakes. In addition, musical pitches repeat often within a melodic sequence in different orders, yet people do not confuse the sequential ordering; temporal properties of musical pitches aid sequence memory. I describe a contextual model of sequence memory that is sensitive to the rate at which musical sequences are produced and to individual differences among performers. Age and musical experience differentiate adults' and children's memory for musical sequences during performance. Performers' memory for the sequential structure of one melody transfers or generalizes to other melodies in terms of the sequence of pitch events, their temporal properties, and their movements. Motion-analysis techniques provide further views of the time course of the cognitive processes that make sequence memory for music so accurate.     

Psychological hardiness predicts successful selection in a law enforcement special operations assessment and selection course

We studied the predictive effects of psychological hardiness on successful selection in a United States federal tactical law enforcement assessment and selection (A&S) program. Seventy‐one male experienced law enforcement personnel participated in a week‐long, physically and psychologically rigorous A&S course. Dispositional Resilience Scale (DRS‐15) Total Hardiness scores predicted selection in this select sample. Age and cognitive ability moderated the predictive effects of psychological hardiness such that hardiness predicted selection in younger candidates and candidates with higher cognitive ability. Similar findings were obtained for DRS Commitment. DRS‐15 Control facet also differentiated selection in this sample but the predictive effects did not hold when age and cognitive ability were controlled. Findings extend the application of the DRS‐15 to law enforcement personnel selection and highlight the importance of examining moderating effects of psychological hardiness.     

Neurobiological and Cognitive Profile of Young Binge Drinkers: a Systematic Review and Meta-Analysis

Neuropsychology Review - This review provides the first systematic and quantitative synthesis of the literature examining the relationship between binge drinking, cognition, brain structure and...     

A Systematic Review of Neurocognitive Functioning in Behçet’s Disease

Neuropsychology Review - Behçet’s disease (BD) is a vascular, inflammatory multisystem disorder with neuro-Behçet’s (NBD) diagnosed in a subset of patients with neurological...