Guidance of attention by information held in working memory

Information held in working memory (WM) can guide attention during visual search. The authors of recent studies have interpreted the effect of holding verbal labels in WM as guidance of visual attention by semantic information. In a series of experiments, we tested how attention is influenced by visual features versus category-level information about complex objects held in WM. Participants either memorized an object’s image or its category. While holding this information in memory, they searched for a target in a four-object search display. On exact-match trials, the memorized item reappeared as a distractor in the search display. On category-match trials, another exemplar of the memorized item appeared as a distractor. On neutral trials, none of the distractors were related to the memorized object. We found attentional guidance in visual search on both exact-match and category-match trials in Experiment 1, in which the exemplars were visually similar. When we controlled for visual similarity among the exemplars by using four possible exemplars (Exp. 2) or by using two exemplars rated as being visually dissimilar (Exp. 3), we found attentional guidance only on exact-match trials when participants memorized the object’s image. The same pattern of results held when the target was invariant (Exps. 2–3) and when the target was defined semantically and varied in visual features (Exp. 4). The findings of these experiments suggest that attentional guidance by WM requires active visual information.     

Math Weaknesses in Survivors of Acute Lymphoblastic Leukemia Compared to Healthy Children

Difficulties in math are the most frequently reported area of academic deficit in survivors of acute lymphoblastic leukemia (ALL) and the most frequent academic complaint among parents of ALL survivors. However, previous studies that included measures of math skills have been limited by the use of only a single measure of math skills, most often a measure of written calculations, without any assessment of math reasoning or math application skills. Further, the nature of these math difficulties has not been adequately investigated. The purpose of this study was to examine the performance of ALL survivors using multiple measures of math skills. Performance was compared to a group of healthy controls matched for age and sex as well as to normative levels. Other measures of neuropsychological function were also administered, and the relationships between these measures and the math measures were explored. Converging evidence for math difficulties in ALL survivors compared to healthy controls and normative levels was found. While ALL survivors generally performed within the average range on measures of math skills, math performance was mostly related to memory function and dominant-hand psychomotor speed. By contrast, math performance of healthy children was mostly related to basic reading skills and visual-motor integration. These findings shed light on the nature of math difficulties in ALL survivors and have implications for intervention.     

Work-to-family enrichment: Influences of work resources,work engagement and satisfaction among employees within the South African context

The aim of this study was to investigate the relationship of work resources, work-to-family enrichment, engagement and job satisfaction among employees in the South African context. Data were collected from 627 participants (females=67%, Afrikaans or English speakers=81.8%). The analysis utilised multiple regression analysis to predict work resources and work-to-family enrichment dimensions from work engagement dimensions, job satisfaction and career satisfaction. In the multiple regression analyses, work-related development opportunities, work autonomy and work-family affect were significant predictors of work vigour. Furthermore, work-related development opportunities, work autonomy, work-family affect and work-family perspectives were significant predictors of work dedication, job satisfaction and career satisfaction. Results support the idea that participation in one role may enrich the quality of life in the other role and provides a more comprehensive understanding of the positive side of the work/family interface.     

Women and men in love: who really feels it and says it first?

A widely held belief exists that women are more romantic and tend to fall in love faster than men. Responses from 172 college students indicated that although both men and women believe that women will fall in love and say "I love you" first in a relationship, men reported falling in love earlier and expressing it earlier than women reported. Analyses also showed no sex differences in attitudinal responses to items about love and romance. These results indicate that women may not be the greater "fools for love" that society assumes and are consistent with the notion that a pragmatic and cautious view of love has adaptive significance for women.     

Diverse Perceptions of the Informed Consent Process: Implications for the Recruitment and Participation of Diverse Communities in the National Children’s Study

We examined the experiences, perceptions, and values that are brought to bear when individuals from different ethnic and cultural backgrounds consider participating in health research. Fifty-three women from Latino, Asian American, Middle Eastern, or Non-Latino, White backgrounds participated in seven English or Spanish focus groups facilitated by trained investigators using a standard protocol. Investigators described the National Children’s Study (NCS) and then asked questions to elicit potential concerns, expectations, and informational needs. Group sessions were audio-recorded, transcribed verbatim, and analyzed using qualitative thematic methods. A major theme that emerged during focus groups was participant self-identification as a member of a cultural group or community when raising issues that would influence their decision to participate in research. A related theme was the belief by some that communities may differ in the ease of participation in the NCS. Identified themes related to the informed consent process included perceived risks, anticipated burden, perceived benefits, informational needs, and decision-making strategies. Although themes were shared across groups, there were cultural differences within themes. Findings indicated that individuals from diverse backgrounds may have different perspectives on and expectations for the research process. To effectively recruit representative samples, it will be important to address a range of issues relevant for informed consent and to consider the impact of participation on both individuals and communities.     

Choosing and using tools: Prior experience and task difficulty influence preschoolers’ tool-use strategies

Children's acquisition of tool use abilities is an important part of development but is not yet well understood. This study compares two modes of tool-use learning, observation and individual haptic experience. Two- and 3-year-olds had haptic experience with tools, observed tool use by others, had both haptic and observational experience, or no tool exposure. Their tool choice and use were evaluated across six problem-solving tasks that varied in degree of difficulty. Children learned about tools better by observation than by individual learning through manual exploration. Performance also varied by task difficulty, with more complex tasks proving more difficult. Findings are discussed from cognitive and evolutionary perspectives.     

A multidimensional, multilevel examination of mother and father involvement among culturally diverse Head Start families

In this study we examined the relationships between family demographics and level of satisfaction with school contact as possible determinants of multiple dimensions of family involvement in early childhood education. Participants included 171 urban, Head Start parents (108 mothers and 63 fathers). Results revealed that for mothers, having less than a high school education was negatively associated with levels of home-school conferencing. For fathers, primary language spoken in the home was associated with both levels of home-school conferencing and school-based involvement, with Polish- and Spanish-speaking fathers participating less compared with their English-speaking counterparts. In addition, fathers of boys reported higher levels of home-school conferencing. Involvement at school was significantly associated with level of satisfaction with school contact for both mothers and fathers. Multilevel analyses revealed parent gender and satisfaction as the most salient predictors of involvement at the level of the family. Implications for future research, as well as family involvement practice and policy, are discussed.     

The spacing effect in intentional and incidental free recall by children and adults: Limits on the automaticity hypothesis

Preschoolers, elementary school children, and college students exhibited a spacing effect in the free recall of pictures when learning was intentional. When learning was incidental and a shallow processing task requiring little semantic processing was used during list presentation, young adults still exhibited a spacing effect, but children consistently failed to do so. Children, however, did manifest a spacing effect in incidental learning when an elaborate semantic processing task was used. These results limit the hypothesis that the spacing effect in free recall occurs automatically and constrain theoretical accounts of why the spacing between repetitions affects recall performance.     

Is pigmentation important for face recognition? Evidence from contrast negation

It is extraordinarily difficult to recognize a face in an image with negated contrast, as in a photographic negative. The variation among faces can be partitioned into two general sources: (a) shape and (b) surface reflectance, here termed 'pigmentation'. To determine whether negation differentially affects the processing of shape or pigmentation, we made two sets of faces where the individual faces differed only in shape in one set and only in pigmentation in the other. Surprisingly, matching performance was significantly impaired by contrast negation only when the faces varied in pigmentation. This provides evidence that the perception of pigmentation, not shape, is selectively disrupted by negation and, by extension, that pigmentation contributes to the neural representation of face identity.     

Lying and cheating: fraudulent excuse making, cheating, and plagiarism

Undergraduates reported their use of fraudulent excuses; 72% of the student participants claimed to have used a fraudulent excuse in college at least once. This activity was correlated with an independently obtained self-report measure of cheating (r = .38) and plagiarism (r = .27). Grade point average was negatively correlated with all 3 measures but did not reach statistical significance with the measure of plagiarism.