Smooth pursuit eye movement and schizotypy in the community

Deficits in smooth pursuit eye movements are well documented in schizophrenia and schizotypic psychopathology. The status of eye tracking dysfunction (ETD) as an endophenotype for schizophrenia liability is relatively robust. However, the relation of ETD to schizophrenia-related deviance in the general population has not been confirmed. This study examined smooth pursuit eye tracking and schizotypal personality features in the general population. Smooth pursuit eye movement and schizotypal features were measured in 300 adult community subjects. The sample included both sexes, subjects with a wide age and educational range, and subjects with no prior history of psychosis. Primary outcome measures were peak gain (eye velocity/target velocity), catch-up saccade rate, and schizotypal feature scores. Total schizotypal features were significantly associated with decreased peak gain and were associated at the trend level with increased catch-up saccade rate. These associations were essentially unchanged after controlling for age, sex, and intellectual level effects. These data confirm a hypothesized association between schizotypal features and poorer eye tracking performance (principally, peak gain) in the general population as well as support the conceptualization of ETD as an endophenotype for schizophrenia liability.     

How are pictures registered in memory?

Three experiments tested the hypothesis that pictorial memory is much less dependent on rehearsal than is verbal memory. Experiment I examined incidental learning since this is assumed to reflect learning with little or no rehearsal. Following a classification task, intentional and incidental learning for pictures and for words was compared. The superiority of pictorial memory was especially marked in incidental learning. Experiment II showed that this result was not due to differences in the amount of processing required to classify pictures and words. RTs to classify words and pictures did not differ, and incidental learning was again superior for pictures. In Experiment III rehearsal opportunity was restricted by a concurrent task during presentation of word and picture lists, and the decrement was very much greater for word learning than for picture learning. It was concluded that manipulation of rehearsal opportunity has relatively little effect on pictorial memory.     

In these pages

The American Journal of Psychoanalysis -     

From the Editor: A Note of Farewell and Welcome

The American Journal of Psychoanalysis -     

Comparison of “rap” groups with traditional group therapy in the treatment of Vietnam combat veterans

An estimated 500,000–700,000 veterans suffer from posttraumatic stress disorder characterized by mental flashbacks of the war, recurrent dreams of the trauma, repetitive, intrusive thoughts of the war, irritability, generalized anxiety and difficulty relating to others. For many years, these individuals went undiagnosed and, except for rap groups, untreated. The rap groups were formed to talk about the war in a general debriefing process during the early 1970s. Rap groups failed to focus on the individual pathology, but, instead, provided a forum to refashion value and meaning in the veterans' lives. Recently, more traditional forms of group therapy have been used to help treat individuals suffering from posttraumatic stress disorder secondary to the Vietnam war. This paper discusses the unique features of traditional group therapy with Vietnam veterans.     

Explanation and Understanding Revisited: Bohman and the New Philosophy of Social Science

James Bohman has succeeded in reinvigorating the old debate over explanation and understanding by situating it within contemporary discussions about sociological indeterminacy and complexity. I argue that Bohman's preference for a paradigm based on Habermas's theory of communicative action is justifiable given the explanatory deficiencies of ethnomethodological, rational choice, rule-based, and functionalist methodologies. Yet I do not share his belief that the paradigm is preferable to less formalized models of interpretation.