The multi-item localization (MILO) task: measuring the spatiotemporal context of vision for action

We describe a new multi-item localization task that can be used to probe the temporal and spatial contexts of search-like behaviors. A sequence of four target letters (e.g., E, F, G, and H) was presented among four distractor letters. Observers located the targets in order. Both retrospective and prospective components of performance were examined. The retrospective component was assessed by having target items either vanish or remain once they had been located. This manipulation had little effect on search performance, suggesting that old target items can be efficiently ignored. The prospective component was assessed by shuffling future target and distractor locations after each response. This manipulation revealed that observers typically plan ahead at least one target into the future. However, even when observers cannot plan ahead, they are still able to ignore old targets. These findings suggest that both "what you did" and "what you intend to do" can influence the localization and selection of targets.     

The role of sleep in changing our minds: a psychologist's discussion of papers on memory reactivation and consolidation in sleep

The group of papers on memory reactivation and consolidation during sleep included in this volume represents cutting edge work in both animals and humans. They support that the two types of sleep serve different necessary functions. The role of slow wave sleep (SWS) is reactivation of the hippocampal-neocortical circuits activated during a waking learning period, while REM sleep is responsible for the consolidation of this new learning into long-term memory. These studies provide further insights into mechanisms involved in brain plasticity. Robeiro has demonstrated the upregulation of an immediate-early gene (IEG zif 268) to waking levels, which occurs only in REM and only in connection with new learning. McNaughton and his group have identified electrical indicators that the hippocampus and neocortex are talking to each other by testing the coactivation of hippocampal sharp wave bursts in SWS and shifts from down to up states of activation in the neocortex. In human studies Smith's group reports work on individual differences such as intelligence and presleep alcohol that affect postsleep performance, and Stickgold and collaborators report that a short nap will improve performance if it contains REM sleep. Payne and Nadel suggest that the recall benefit associated with REM sleep may be due to its association with increased cortisol levels. These papers are important not only in their individual contributions but also in revitalizing the work coordinating waking and sleep. This promises to further the understanding of how our unique capacity to learn from experience and modify our behavior takes place.     

Doctoral dissertations in pastoral psychology June 1, 1963 to May 31, 1964

Pastoral Psychology -     

Moderators of sex- and race-based subgroup differences in assessment center ratings: A meta-analysis

This meta-analysis tested a series of moderators of sex- and race-based subgroup differences using assessment center (AC) field data. We found that sex-based subgroup differences favoring female assessees were smaller among studies that reported: combining AC scores with other tests to compute overall assessment ratings, lower mean correlations between rating dimensions, using more than one assessor to rate assessees in exercises, and providing assessor training. In contrast, we found larger sex-based subgroup differences favoring female assessees among studies that reported: lower proportions of females in assessee pools, conducting a job analysis to design the AC, and using multiple observations of AC dimensions across exercises. We also observed a polynomial effect showing that subgroup differences most strongly favored female assessees in jobs with the highest and lowest rates of female incumbents. We found race-based subgroup differences favoring White assessees were smaller on less cognitively loaded rating dimensions and for jobs with lower rates of Black incumbents. Studies reporting greater overall methodological rigor also showed smaller subgroup differences favoring White assessees. Regarding specific rigor features, studies reporting use of highly qualified assessors and integrating dimension ratings from separate exercises into overall dimension scores showed significantly lower differences favoring White assessees.     

Treating bulimia

Bulimia has been recognized as a distinct eating disorder which is affecting a growing number of young adolescent women. It is characterized by the consumption of huge amounts of food followed by some form of purging, usually vomiting, in order to lose the gained weight. Most bulimics keep their activities secret, which makes diagnosis difficult. The counselor or therapist who is aware of the secretive nature of the disorder will be more alert to the symptoms. Most bulimics experience cognitive distortions relating to food, weight loss, eating, and dieting. The purpose of this paper is to identify and to discuss treatment of some of these irrational cognitions through the use of cognitive, behavioral, and emotional interventions. The importance of providing nutrition information and realistic diet practices is also noted. A group treatment approach is briefly addressed in dealing with the bulimic's problems of isolation, shame, and social acceptance.     

Gustatory,salivary, and oral thermal responses to solutions of sodium chloride at four temperatures

Using eight highly trained Ss, sensitivity to near threshold levels of NaCl was significantly greater at solution temperatures of 22° and 37°C than at 0° or 55°C. Perceived intensity increased linearly with concentration (0.04%–0.64% NaCl) at all four solution temperatures, with the two lower considered slightly more intense than the two higher temperatures. Biomodal distributions were obtained for hedonic judgments at all temperatures, with three Ss showing greater liking and five Ss showing greater disliking of increasing concentrations. Parotid salivary flow was inversely related to the taste sensitivity, i.e., significantly lower flow rates were obtained for the intermediate than for the hot or cold solutions, independent of salt content. When solution temperature was O°C, the minimum temperature of the oral cavity was 9°–20°C; when solution temperature was 55°C, the maximum temperature of the oral cavity was46°–49°C.     

Fathers' participation in the care of their preschool children

Correlates of fathers' participation in the care of their preschool children were investigated, using two indices of participation: (a) child-care tasks performed by the father independently; and (b) child-care tasks performed jointly with the mother. Subjects were 79 fathers and mothers of Caucasian middle-class 4-year-old girls and the girls themselves, and 36 fathers and mothers of a matched sample of preschool boys. Major factors examined as possible influences on participation included (a) maternal work-role pattern; (b) fathers' and mothers' sex-role ideology; and (c) family work load, i.e., family size and number of children under 6. Indices of variables conceptualized as possible consequences of participation included (a) girls' sex-role stereotyping; (b) fathers' self-perceptions of masculinity and femininity; and (c) wives' role-pattern satisfaction. Results indicated that fathers' independent (but not joint) performance of child-care tasks was significantly and positively related to maternal work-role variables and to nontraditional sex-role ideology of fathers and wives, but not to family work load. Independent (but not joint) participation was significantly and negatively related to daughters' stereotyping and to fathers' perceptions of themselves as stereotypically masculine. Wives' role-pattern satisfaction was unexpectedly found to be negatively related to both joint and independent participation.Data reported here were gathered as part of a research project supported by NIMH Grant #25215. The authors wish to acknowledge the collaboration of Susan Dibner.