Attending to multiple sources of information: I. The integration of information in decision making

Information relevant to a decision is often available from several sources, such as different sensory modalities or different spatial locations. Processing or utilization of such information is often selective in that some sources seem to have more influence on a decision or response than others. Many different theoretical mechanisms have been proposed to account for such selective (i.e., attentional) aspects of human information processing. This paper considers theoretical mechanisms which operate to integrate separate sources of information in order to make a binary decision. In particular, these mechanisms are studied in simple visual and auditory detection tasks as well as a Bayesian decision problem. Data from these experiments reject the idea that one integrates the relevant information from several sources prior to making a decision. Rather, one seems to form separate decisions about the information from each source and then integrate these decisions in order to select a response.     

Anorexia nervosa: The counsellor's role

Thispaper is an attempt to describe and examine the role of the counsellor in relation to anorexia nervosa. The condition is analysed in terms of its social and psychological factors. The need for control and self-mastery is put forward as a dominating characteristic. The role of refeeding in anorexia is discussed, with the suggestion that the attitudes of anorexies and their doctors need to be understood as a whole. Finally, the counselling possibilities are suggested, and the position of the counsellor vis-à-vis the refeeders is discussed.     

Family interaction,gender, and status attainment value

Past research on adolescent attainment has virtually ignored the interactional aspects through which children learn attainment values. Using a simulated career game, parent-child interaction (father, mother, and adolescent son or daughter) was coded to assess its impact on the child's attainment value. Encouragement patterns, parental opportunity awareness, and family affect were examined. Results revealed differences in these family interaction variables as sources and determinants of adolescent attainment value, depending upon sex of child. The variables were able to account for considerably more of the variation in sons' attainment value than daughters'.This study was made possible by grants from the National Institute of Mental Health (#15521-04), the Midwest Universities Consortium for International Activities (MUCIA) (*G-75), and the Minnesota Center for Comparative Studies in Technological Development and Social Change (funds provided by the Ford Foundation) (#26301), principal investigator, Irving Tallman. The author would like to acknowledge the helpful comments made by Viktor Gecas, Jeylan Mortimer, Irving Tallman, and especially Milton Rokeach on an earlier draft of this article.     

An evaluation of reality orientation therapy

An evaluation was made of reality orientation therapy utilizing 14 male patients with dementias of various types. The therapy is designed to improve memory and reduce confusion in elderly and demented individuals. Utilizing a group comparison with crossover design, it was found that the patients improved significantly over sessions on orientation items actually taught during those sessions. However, no significant improvement was found on a series of generalization items consisting of orientation-related questions that were not asked during sessions. Furthermore, there was no generalization to ward activities. It was noted that individual responses to the treatment were quite varied, and so three cases reflecting highly different responses are presented.Indebtedness is expressed to the Veterans Administration for support of this research.     

Multimodal signal detection: Independent decisions vs. integration

The pooling of information from simultaneous, spatially congruent auditory and visual stimuli is examined in a signal detection task. The paradigm used permits discrimination among a number of models of the decision mechanisms involved in processing multiple component stimuli. Parameter-free predictions are presented for the weighted integration model and for three versions of the independent decisions model. The data support an independent decisions model of the bimodal detection process in which attention is shared equally between modalities.     

The acquisition of mental verbs: A systematic investigation of the first reference to mental state

It is generally recognized that the ability to contemplate and communicate about the knowledge, beliefs, and goals of oneself and others is a benchmark of human cognition. Yet, little is known about the beginnings of this ability, in large measure because methods for accurately assessing very young children's ability have been unavailable. Here we present the results of using a method of convergent analyses of naturally occurring speech to assess the young child's ability to contemplate and communicate about mental state. The first study describes the frequency and function of verbs of mental reference such as think and know in the speech of one child from 2;4 to 4;0. The second examines shorter samples of speech collected from 30 two-year-olds over a 6 month period. Results from both studies suggest that the earliest uses of mental verbs are for conversational functions rather than for mental reference. First attempts at mental reference begin to appear in some children's speech in the second half of the third year. Since most of the children studied exhibited the linguistic knowledge necessary to make reference to mental states, we conclude that the absence of such reference earlier suggests that still younger children lack awareness of such states, or at the very least, an understanding of their appropriateness as topics of conversation.     

Divided attention and indirect memory tests

Attentional state during acquisition is an important determinant of performance on direct memory tests. In two experiments we investigated the effects of dividing attention during acquisition on conceptually driven and data-driven indirect memory tests. Subjects read a list of words with or without distraction. Memory for the words was later tested with an indirect memory test or a direct memory test that differed only in task instructions. In Experiment 1, the indirect test was categoryexemplar production (a conceptually driven task) and the direct test was category-cued recall. In Experiment 2, the indirect test was word-fragment completion (a data-driven task) and the direct test was word-fragment cued recall. Dividing attention at encoding decreased performance on both direct memory tests. Of the indirect tests, category-exemplar production but not word-fragment completion was affected. The results indicate that conceptually driven indirect memory tests, like direct memory tests, are affected by divided attention, whereas data-driven indirect tests are not. These results are interpreted within the transfer-appropriate processing framework.     

Creating classrooms that students experience as communities

Although prior research has shown sense of community in schools to be related to many positive student characteristics, effective interventions that can create or enhance this sense have not been demonstrated. In this paper we describe a comprehensive elementary school program, implemented by teachers, that was successful in creating a sense of community in the classrooms, as perceived by students. The program was implemented in three elementary schools in a suburban school district; three additional schools in the same district served as a comparison group. The program, which emphasized cooperative learning, the importance of democratic and prosocial values, student autonomy and self-direction, and a child-centered approach to teaching and classroom management, was experienced by a cohort of students from kindergarten through Grade 4, and by a subset of that cohort through Grade 6. Sense of community was assessed—by questionnaire—in Grades 4, 5, and 6; various student outcomes were assessed via questionnaire and interview. Results indicated that the program was successful in heightening students’ sense of community, and that the sense of community—by itself and in combination with program status—related positively to a number of student outcomes. There was also suggestive evidence that students who experienced their classroom as a community attempted to abide by its norms and values, and that the authority structure of the classroom was an important determinant of students’ experience of community and of some of its observed effects. The project described in this paper was supported by the William and Flora Hewlett Foundation. An earlier version of this paper was presented at the International Symposium on Research on Effective and Responsible Teaching, Fribourg, Switzerland, September 1990. A brief, nontechnical summary of the findings described here was included in Solomon, Watson, Battistich, Schaps, and Delucchi, 1992. In addition to the authors, significant contributions to this work were made by numerous others, including Carole Cooper, Stefan Dasho, Jane Deer, Sylvia Kendzior, Allison Rickard, Wendy Ritchie, Marc Rosenberg, Judith Solomon, Carole Stone, Margaret Tauber, and Pat Tuck.     

Semantic priming in visual word recognition: Activation blocking and domains of processing

The fact that letter search on a prime eliminates the typically robust semantic priming effect in lexical decision is often attributed to the “shallowness” of the prime-processing task. In three experiments we investigated this claim by using two different “shallow” prime-processing tasks: letter search and color identification. Consistent with previous reports, lexical decisions to semantically related targets were not facilitated when subjects searched the prime for a probe letter. In contrast, semantic priming was observed following a color discrimination task on the prime. We suggest that a levels-of-processing interpretation is not an adequate framework for understanding these data. Instead, a domain-specific processing account is offered in which explicit processing at the letter level (as in letter search) makes demands on resources (e.g., activation) that drives processing at the semantic level. This competition is resolved by establishing a temporary activation block at the lexical-semantic interface, which results in the elimination or attenuation of semantic priming. In contrast, global judgment of color is viewed as a domain that does not make demands on the resources that drive the visual word recognition machinery. There is therefore no need for an activation block, and semantic priming is not prevented.