Sources of Heterogeneity in Schizophrenia: The Role of Neuropsychological Functioning

Although schizophrenia is often characterized as a heterogeneous disorder, efforts to validate stable and meaningful subtypes have met with limited success. Thus, the issue of whether schizophrenia reflects a continuum of severity or a number of discrete subtypes remains controversial. This review evaluates efforts to establish subtypes based upon a model that includes causes, characteristics, and course and outcomes of heterogeneity. Emphasis is placed on empirical classification studies utilizing cognitive tests or symptom rating scales, sometimes in conjunction with neuroimaging procedures. Results of recent cluster analytic studies are reviewed that produced evidence of four or five clusters, varying in level and pattern of performance. Although this research typically generated meaningful subtypes, it was often the case that there was little correspondence between subtyping systems based upon cognitive function and those based upon symptom profile. It was concluded that there may be different mechanisms for producing cognitive and symptomatic heterogeneity, and that diversity in presentations of schizophrenia reflects a combination of continuities in severity of the disorder with a number of meaningful and stable subtypes.     

The Referential Structure of the Affective Lexicon

A set of approximately 500 words taken from the literature on emotion was examined. The overall goal was to develop a comprehensive taxonomy of the affective lexicon, with special attention being devoted to the isolation of terms that refer to emotions. Within the taxonomy we propose, the best examples of emotion terms appear to be those that (a) refer to internal, mental conditions as opposed to physical or external ones, (b) are clear cases of stares, and (c) have affect as opposed to behavior or cognition as a predominant (rather than incidental) referential focus. Relaxing one or another of these constraints yields poorer examples or nonexamples of emotions; however, this gradedness is not taken as evidence that emotions necessarily defy classical definition.     

Book reviews

Hostility and Aggression by Dolf Zillmann Hillsdale, N.J.: Lawrence Erlbaum Associates, 1979, 422 pages, $24.95.

Sexually Abused Children by David Finkelhor New York: The Free Press, 1979, $13.95, cloth.

Damnation and Deviance: The Protestant Ethic and the Spirit of Failure by Mordechai Rotenberg New York: The Free Press, 1978, 232 pages, $12.95.

Prison Sexual Violence by Daniel Lockwood New York, Elsevier, 1980,179 pages, $12.95, cloth.

Ethnic Drinking Subcultures by Andrew Greeley, William McGready, and Gary Theisen New York, Praeger, 1980,138 pages.     

Enrichment and written messages with couples

Abstract

The field of paradoxical therapy has mushroomed in a variety of conceptual and methodological ways. One of the latest methods is the use of paradoxically worded letters that will be given to couples and families, usually at the outset of therapy. To check on the validity of this approach, 56 couples were evaluated before and after a course of six sessions of marital enrichment. One group received no enrichment. A second group received enrichment. A third group received linearly worded messages at the end of the fourth session of enrichment, while a fourth group received paradoxically worded messages. The effect of these messages on the outcome is analyzed and discussed.     

The landscape of time in literary reception: Character experience and narrative action

Abstract

This experiment examined responses to excerpted episodes from short stories that either focused on action or on the experiences of the characters. The effects of instructional sets to approach the texts from the viewpoint of subjective involvement or objective detachment were also studied. The two story types and two reading sets were factorially combined in a within-subjects design. Scale ratings of the story excerpts and reading times (syllables per second) were measured. A total of subjects (20 males and 20 females) read six segments from each of the episodes as quickly and accurately as possible. Pretest data were obtained for each segment indicating how much it “provided insight into the characters' experiences”, and its level of suspense and surprise. Segments which “provided in sight” were read more slowly, whereas surprising segments were read more quickly. Under the Subjective Set, subjects slowed the pace of reading if they judged the text to be “rich in meaning about life”. For the Objective Set, stories that were judged to have evoked “images” were read more slowly. Females were more responsive to the Subjective Set than were the males, finding the stories to be “richer in meaning” and more “personally relevant”. Females also slowed their reading pace for segments that they judged to be “rich in meaning about life”, while males slowed down if the stories evoked “images”.     

LOSING SAMMY: A CATALYST FOR EXITING AN ABUSIVE RELATIONSHIP

Abstract

Miscarriage is a relatively prevalent occurrence in our society. The reported incidence of this event indicates that 20% of all women experience a miscarriage. Women who have miscarried report friends and family responding in ways that seem to try to reduce the impact and importance of the event. This leaves the grieving woman with a sense of little support or understanding of what she had just experienced. Furthermore, the experiences reported by women who have had a miscarriage are quite different from those reported by other individuals who have experienced other types of loss such as a spouse, partner, parent, or friend. Women who have miscarried report a lack of recognition that they have experienced a loss. Little is known about how society views miscarriage or why individuals respond in such an apparently unsupportive manner to a woman who has had a miscarriage. The present work sought to determine whether miscarriage is an unrecognized loss and to assess the meaning of miscarriage to others. Although the results indicate miscarriage is viewed as a loss, it is a loss with minimal grounded or valuative meaning for others, which suggests that the cultural norm of silence surrounding early pregnancy and miscarriage should be lifted     

Intelligence and the Rorschach Whole Response

Previous research on the relation between intelligence and Rorschach W responses has produced inconclusive results. The problem was re-examined with methodological improvements. Ss were 58 latency and pre-adolescent boys. Rorschach W responses were coded to Friedman's developmental scoring system, and response frequencies in these categories were correlated with WISC IQ and subtest scaled scores. IQ scores were significantly related to one of two types of developmentally advanced W responses as predicted (r = .33), and no meaningful pattern of correlations was found between the developmentally more primitive types of W responses and IQ.     

The Effect of Self-Imposed Brevity on the Structure of Dyadic Communication

Differences between concise and natural communications in problem solving were investigated by comparing the communications generated by pairs of S s asked to use as few words as possible with the communications by pairs of S s of whom no such request was made. Sixteen male pairs and 16 female pairs, all undergraduate students, were tested. Two modes of communication were used: voice and teletypewriter. An analysis of message function revealed that when S s tried to be brief, they used a larger percentage of messages concerned with the exchange of information and lower percentages of messages that dealt with the rate of communication, judgments, and feedback than under the natural condition. An analysis of parts of speech revealed that those S s who restricted their communications used higher percentages of nouns and adjectives and lower percentages of pronouns, verbs, prepositions, interjections, and articles than did S s who did not restrict their communications. Most of these findings held for both modes of communication.     

Can Explanatory Reasons Be Good Reasons for Action?

What kind of thing is a reason for action? Are reasons for action subjective states of the agent, such as desires and/or beliefs? Or are they, rather, objective features of situations that favor certain actions? The suggestion offered in this article is that neither strategy satisfies. What is needed is a third category for classifying reasons which makes them out to be neither purely subjective nor purely objective. In brief: a reason for action is a feature of the situation that matters to the agent. On this proposal, subjective states of the agent are indeed indispensable in characterizing reasons for action. Precisely which set of situational features matter to an agent—precisely what shape the agent experiences the situation as having—depends on the agent's psychological makeup. Those features themselves are not psychological states, however, and it is precisely those features that constitute the agent's reasons for action.