Expectation-based syntactic comprehension

This paper investigates the role of resource allocation as a source of processing difficulty in human sentence comprehension. The paper proposes a simple information-theoretic characterization of processing difficulty as the work incurred by resource reallocation during parallel, incremental, probabilistic disambiguation in sentence comprehension, and demonstrates its equivalence to the theory of Hale [Hale, J. (2001). A probabilistic Earley parser as a psycholinguistic model. In Proceedings of NAACL (Vol. 2, pp. 159-166)], in which the difficulty of a word is proportional to its surprisal (its negative log-probability) in the context within which it appears. This proposal subsumes and clarifies findings that high-constraint contexts can facilitate lexical processing, and connects these findings to well-known models of parallel constraint-based comprehension. In addition, the theory leads to a number of specific predictions about the role of expectation in syntactic comprehension, including the reversal of locality-based difficulty patterns in syntactically constrained contexts, and conditions under which increased ambiguity facilitates processing. The paper examines a range of established results bearing on these predictions, and shows that they are largely consistent with the surprisal theory.     

Does performance on the standard antisaccade task meet the co-familiality criterion for an endophenotype?

The “co-familiality” criterion for an endophenotype has two requirements: (1) clinically unaffected relatives as a group should show both a shift in mean performance and an increase in variance compared with controls; (2) performance scores should be heritable. Performance on the antisaccade task is one of several candidate endophenotypes for schizophrenia. In this paper we examine whether the various measures of performance on the standard version of the antisaccade task meet the co-familiality criterion for an endophenotype. The three measures of performance—reflexive saccade errors, latency of correct antisaccades, and gain—show a wide range of effect sizes and variance ratios as well as evidence of significant or near significant heterogeneity. The estimated mean effect sizes [Cohen’s d: error rate: 0.34 (SD: 0.29); latency: 0.33 (SD: 0.30); gain: 0.54 (SD: 0.38)] are significantly greater than 0, but the magnitude of the departures from 0 is relatively small, corresponding to modest effect sizes. The width of the 95% confidence intervals for the estimated effect sizes (error rate: 0.2–0.49; latency: 0.17–0.50; gain: 0.23–0.85) and the coefficients of variation in effect sizes (error rate: 85.3%; latency: 90.9%; gain: 68.4%) reflect heterogeneity in effect sizes. The effect sizes for error rate showed statistically significant heterogeneity and those for latency (P = .07) and gain (P = .09) showed a trend toward heterogeneity. These results indicate that the effect sizes are not consistent with a single mean and that the average effect size may be a biased estimate of the magnitude of differences in performance between relatives of schizophrenics and controls. Relatives of schizophrenics show a small but significant increase in variance in error rate, but the confidence interval is broad, perhaps reflecting the heterogeneity in effect size. The variance ratios for latency and gain did not differ in relatives of schizophrenics and controls. Performance, as measured by error rate, is moderately heritable. The data do not provide compelling support for a consistent shift in mean or variance in relatives of schizophrenia patients compared with nonpsychiatric controls, both of which are required for a major gene involved in co-familial transmission. This set of findings suggests that although intra-familial resemblance in antisaccade performance is due in part to genetic factors, it may not be related to a schizophrenia genotype. Based on the current literature, it would be premature to conclude that any of the measures of antisaccade performance unambiguously meets the co-familiality criterion for an endophenotype.     

The effects of being categorised: The interplay between internal and external social identities

In this chapter, we consider the independent and interactive effects of internal categorisations (how people see themselves) and external categorisations (how they are categorised by others) on social behaviour. Our point of departure is that people do not necessarily accept external categorisations that are imposed upon them (regardless of whether these refer to artificially constructed or naturally occurring groups) and that this affects their willingness to invest in the group. We first outline different reasons people may have to behave in line with externally imposed group memberships. Subsequently, we examine how self-presentation motives may interfere with identity expression, as people consider different social norms, different audiences, and the psychological costs associated with the management of their social identities. We conclude by delineating the conditions under which external categorisations can be internalised by targets, depending on the interplay of multiple identities as well as the way people are treated by others.     

Attachment Theory,Psychoanalysis, Personality Development,and Psychopathology

Blatt and Levy place attachment theory and research in a broad theoretical matrix by considering the relationship of attachment patterns to personality development and to different types of psychopathology in adults. Thus Blatt and Levy construct conceptual bridges between the two configurations of personality development and psychopathology that Blatt and colleagues have developed over the past quarter century (e.g., Behrends and Blatt, 1985; Blatt, 1974, 1995; Blatt and Behrends, 1987; Blatt and Blass, 1990, 1996; Blatt and Shichman, 1983) and attachment theory and research. Blatt and Levy identify a polarity that is central to attachment theory and research, the polarity of attachment and separation, and they note that this polarity has also been central in much of classic psychoanalytic theory (e.g., Freud, 1930; Loewald, 1962). This polarity is expressed in attachment theory and research in the differences between avoidant and anxious-preoccupied insecure attachment patterns as well in the distinction between two types of disorganized attachment, helpless-withdrawn and negative intrusive, identified by Lyons-Ruth (1999, 2001).

This polarity of attachment and separation, or relatedness and self-definition is also fundamental to personality development that occurs in the hierarchical dialectic transaction of two basic developmental lines—interpersonal relatedness and self-definition (Blatt and Blass, 1990, 1996). This polarity is also inherent in the conception of two fundamental configurations of psychopathology—anaclitic psychopathology, the dependent (or infantile) and hysterical personality disorders—that are preoccupied with issues of interpersonal relatedness, and introjective psychopathology, the paranoid, obsessive-compulsive and depressive personality disorders, in which issues of self-definition and self-worth are dominant (Blatt, 1974, 1995; Blatt and Shichman, 1983). Thus, the identification of this fundamental polarity provides the basis for establishing links between attachment patterns, personality development, and adult psychopathology. Blatt and Levy also attempt to integrate psychoanalytic concepts of the representational world (e.g., Sandler and Rosenblatt, 1965)—the development of concepts of self and significant others—with the internal working models (IWMs) of attachment relationships. This integration enabled Blatt and Levy to bring a fuller developmental perspective to the IWMs of attachment theory and to note that, based on differences in the content and structural organization of the IWMs or mental representation of self and significant others, several developmental levels can be identified in both avoidant and anxious preoccupied attachment. These developmental levels within each attachment style also identifies less and more adaptive forms of both types of insecure attachment. Thus, the integration of the psychoanalytic concepts of mental representation with concepts of the IWM of attachment theory and research enables Blatt and Levy to create a fuller developmental perspective in the study of insecure attachment patterns.     

Hemispheric asymmetries for global and local visual perception: effects of stimulus and task factors.

Although neurotogical and physiological studies indicate a right hemisphere superiority in global processing and a left hemisphere superiority in local processing of Navon-type hierarchical letters (D. Navon, 1977), most investigations of lateralized perception in healthy participants report neither asymmetry. In 6 experiments the authors examined the influence of attentional demands, stimulus properties, and mode of response on perceptual asymmetries for global and local perception. Consistent with their theoretical predictions, asymmetries were more robust on divided- than focused-attention tasks and in response to stimuli in which local and global levels were equally salient compared with those with greater global than local saliency. Contrary to their prediction, perceptual asymmetries were not influenced by the complexity of the motor response.     

Lending a Hand One Child at a Time: The Children's Rights Council's Child Access and Transfer Centers

This paper summarizes characteristics of Children's Rights Council child access and transfer centers and presents findings from a pilot survey of parents in a subset of centers. The legislative history of Federal government support for child access projects is presented. The importance of parent-child access following divorce is noted, and existing research findings on outcomes associated with child access programs are reviewed. The differences between the CRC model of child access centers, and those operated by other providers, are discussed in detail. Add-on services, such as parenting education, counseling, and marriage and family therapy, receive due attention.