Source memory that encoding was self-referential: the influence of stimulus characteristics

Decades of research suggest that encoding information with respect to the self improves memory (self-reference effect, SRE) for items (item SRE). The current study focused on how processing information in reference to the self affects source memory for whether an item was self-referentially processed (a source SRE). Participants self-referentially or non-self-referentially encoded words (Experiment 1) or pictures (Experiment 2) that varied in valence (positive, negative, neutral). Relative to non-self-referential processing, self-referential processing enhanced item recognition for all stimulus types (an item SRE), but it only enhanced source memory for positive words (a source SRE). In fact, source memory for negative and neutral pictures was worse for items processed self-referentially than non-self-referentially. Together, the results suggest that item SRE and source SRE (e.g., remembering an item was encoded self-referentially) are not necessarily the same across stimulus types (e.g., words, pictures; positive, negative). While an item SRE may depend on the overall likelihood the item generates any association, the enhancing effects of self-referential processing on source memory for self-referential encoding may depend on how embedded a stimulus becomes in one’s self-schema, and that depends, in part, on the stimulus’ valence and format. Self-relevance ratings during encoding provide converging evidence for this interpretation.     

Clinical Cancer Genetics Disparities among Latinos

The three major hereditary cancer syndromes in Latinos (Hereditary Breast and Ovarian Cancer, Familial Adenomatous Polyposis and Lynch Syndrome) have been shown to exhibit geographic disparities by country of origin suggesting admixture-based disparities. A solid infrastructure of clinical genetics geared towards diagnosis and prevention could aid in reducing the mortality of these cancer syndromes in Latinos. Currently, clinical cancer genetic services in Latin America are scarce. Moreover, limited studies have investigated the mutational spectrum of these cancer syndromes in Latinos resulting in gaps in personalized medicine affecting diagnosis, treatment and prevention. The following commentary discusses available genotype and clinical information on hereditary cancer in Latinos and highlights the limited access for cancer genetic services in Latin America including barriers to genetic testing and alternatives for providing better access to genetic services. In this review, we discuss the status of clinical genetic cancer services for both US Latinos and those Latinos living in Latin America.     

Cross Racial Identity Scale (CRIS) scores: stability and relationships with psychological adjustment

We examined the structural validity, internal consistency (alpha and omega), and test-retest reliability of scores on the Cross Racial Identity Scale (CRIS; Vandiver et al., 2000 ; Worrell, Vandiver, & Cross, 2004 ), as well as the relationship between CRIS scores and several variables related to psychological adjustment. Participants consisted of several groups of African American college students (34 ≤ n ≤ 340) attending a predominantly White university in a Western state. Confirmatory factor analyses indicated an acceptable fit of the data to the theoretical model, and alpha and omega coefficients indicate that CRIS scores have moderate to high internal consistency. CRIS scores also demonstrated stability over periods between 2 and 20 months in ranges that suggest long-term stability of racial attitudes. As predicted by the expanded nigrescence model (Cross & Vandiver, 2001 ), only self-hatred attitudes had consistent, meaningful relationships with psychological adjustment.     

Awareness becomes necessary between adaptive pattern coding of open and closed curvatures

Visual pattern processing becomes increasingly complex along the ventral pathway, from the low-level coding of local orientation in the primary visual cortex to the high-level coding of face identity in temporal visual areas. Previous research using pattern aftereffects as a psychophysical tool to measure activation of adaptive feature coding has suggested that awareness is relatively unimportant for the coding of orientation, but awareness is crucial for the coding of face identity. We investigated where along the ventral visual pathway awareness becomes crucial for pattern coding. Monoptic masking, which interferes with neural spiking activity in low-level processing while preserving awareness of the adaptor, eliminated open-curvature aftereffects but preserved closed-curvature aftereffects. In contrast, dichoptic masking, which spares spiking activity in low-level processing while wiping out awareness, preserved open-curvature aftereffects but eliminated closed-curvature aftereffects. This double dissociation suggests that adaptive coding of open and closed curvatures straddles the divide between weakly and strongly awareness-dependent pattern coding.     

New trends in gender and mathematics performance: a meta-analysis

In this article, we use meta-analysis to analyze gender differences in recent studies of mathematics performance. First, we meta-analyzed data from 242 studies published between 1990 and 2007, representing the testing of 1,286,350 people. Overall, d = 0.05, indicating no gender difference, and variance ratio = 1.08, indicating nearly equal male and female variances. Second, we analyzed data from large data sets based on probability sampling of U.S. adolescents over the past 20 years: the National Longitudinal Surveys of Youth, the National Education Longitudinal Study of 1988, the Longitudinal Study of American Youth, and the National Assessment of Educational Progress. Effect sizes for the gender difference ranged between -0.15 and +0.22. Variance ratios ranged from 0.88 to 1.34. Taken together, these findings support the view that males and females perform similarly in mathematics.     

Severe pain predicts greater likelihood of subsequent suicide

Using data from the 1999 Large Health Survey of Veterans, Veterans Affairs' medical records, and the National Death Index (N = 260,254), the association between self-reported pain severity and suicide among veterans as examined, after accounting for demographic variables and psychiatric diagnoses. A Cox proportional hazards regression demonstrated that veterans with severe pain were more likely to die by suicide than patients experiencing none, mild, or moderate pain (HR: 1.33; 95% CI: 1.15, 1.54), after controlling for demographic and psychiatric characteristics. These results indicate that pain evaluations should be included in comprehensive suicide assessments and suicide prevention efforts.     

Using perceptrons to explore the reorientation task

The reorientation task is a paradigm that has been used extensively to study the types of information used by humans and animals to navigate in their environment. In this task, subjects are reinforced for going to a particular location in an arena that is typically rectangular in shape. The subject then has to find that location again after being disoriented, and possibly after changes have been made to the arena. This task is used to determine the geometric and featural cues that can be used to reorient the agent in the arena. The purpose of the present paper is to present several simulation results that show that a simple neural network, a perceptron, can be used to generate many of the traditional findings that have been obtained using the reorientation task. These results suggest that reorientation task regularities can be explained without appealing to a geometric module that is a component of spatial processing.     

Supporting adolescents who have a sibling with a life-threatening illness: An exploratory study

Aims: This research explores issues encountered by adolescents who have a sibling with a life-threatening illness, and those who work therapeutically with them. Method: Eight semi-structured, face-to-face interviews were conducted with participants who work therapeutically with this client group. Attention was given to the empathic quality of interviews. The interview sample included six females and two males, encompassing a wide demographic area within England and Wales. Five were counsellors and three had other professional trainings. Findings: Data was analysed using grounded theory. Results showed that the provision of family as well as individual therapeutic support for young people would ease stress for families and professionals alike, and that peer support was considered important. Implications for practice: The results of this research suggest that organisations working with families experiencing a life-threatening illness would benefit from attending to the quality of support offered to their staff, as well as the families they work with.     

Characteristic sounds make you look at target objects more quickly

When you are looking for an object, does hearing its characteristic sound make you find it more quickly? Our recent results supported this possibility by demonstrating that when a cat target, for example, was presented among other objects, a simultaneously presented “meow” sound (containing no spatial information) reduced the manual response time for visual localization of the target. To extend these results, we determined how rapidly an object-specific auditory signal can facilitate target detection in visual search. On each trial, participants fixated a specified target object as quickly as possible. The target’s characteristic sound speeded the saccadic search time within 215–220 msec and also guided the initial saccade toward the target, compared with presentation of a distractor’s sound or with no sound. These results suggest that object-based auditory—visual interactions rapidly increase the target object’s salience in visual search.     

A cross-cultural study of trait self-enhancement, explanatory variables, and adjustment

We investigated trait self-enhancement, explanatory variables, and adjustment in European American (n = 141), Asian American (n = 72), Mexican (n = 141), and Filipino (n = 174) college students. Consistent with trait perspectives, students in all cultural groups rated their traits with moderate to high accuracy, using peer ratings as a criterion. European Americans did not exhibit self-enhancement relative to peers, but both self and peer ratings were higher (i.e., more positive) for European Americans than for the other three groups. Support was found for some, but not all, cultural psychology explanations of self-enhancement. In all cultural groups, self-enhancement was more associated with personal (intrapsychic) adjustment than interpersonal adjustment, as judged by peers. The results provided support for an integration of trait and cultural psychology perspectives.