Group Intervention Studies in the Cognitive Rehabilitation of Individuals with Traumatic Brain Injury: Challenges Faced by Researchers

There are many factors to consider in designing and interpreting group studies. These include both analytic considerations, such as the selection of valid and reliable outcome measures, and subjective considerations, such as the selection of outcomes that are perceived to be important to participants and researchers. In this paper, we review key issues to consider in the design of group studies in neurorehabilitation, using problem-solving studies in traumatic brain injury as an example.     

Role of Parenting and Maltreatment Histories in Unipolar and Bipolar Mood Disorders: Mediation by Cognitive Vulnerability to Depression

In this article, we review empirical research on the role of individuals' parenting and maltreatment histories as developmental antecedents for symptoms and diagnosable episodes of unipolar and bipolar spectrum disorders. Our review is focused on the following three overarching questions: (1) Do negative parenting and a history of maltreatment contribute risk to symptoms or diagnosable episodes of unipolar and bipolar disorders? (2) Are the associations of negative parenting and maltreatment histories with bipolar disorders similar to those for unipolar depression? and (3) Are the associations between negative parenting and maltreatment histories and unipolar and bipolar symptoms or disorders mediated by cognitive vulnerability to depression? We begin by discussing the methodological requirements for demonstrating a psychosocial risk factor and the methodological issues that plague the parenting and maltreatment literatures. Next, we review the extant studies on the role of parenting histories in unipolar and bipolar disorders. We consider the specificity and possible moderators of the parenting-mood disorder relationship, as well as cognitive vulnerability to depression as a mediator of this relationship. Then, we review studies on the association of maltreatment histories with unipolar and bipolar disorders and the role of cognitive vulnerability to depression as a mediator of this association. We conclude with an assessment of the state of the parenting and maltreatment literatures in unipolar and bipolar disorder with regard to our guiding questions.     

Prosodic phrasing is central to language comprehension

Words, like musical notes, are grouped together into phrases by their rhythmic and durational properties as well as their tonal pitch. This 'prosodic phrasing' affects the understanding of sentences. Many processing studies of prosody have investigated sentences with a single, grammatically required prosodic boundary, which might be interpreted strictly locally, as a signal to end the current syntactic unit. Recent results suggest, however, that the global pattern of prosodic phrasing is what matters in sentence comprehension, not just the occurrence or size of a single local boundary. In this article we claim that the impact of prosodic boundaries depends on the other prosodic choices a speaker has made. We speculate that prosody serves to hold distinct linguistic representations together in memory.     

Selective attention and emotional vulnerability: assessing the causal basis of their association through the experimental manipulation of attentional bias

Although it is well-established that vulnerability to negative emotion is associated with attentional bias toward aversive information, the causal basis of this association remains undetermined. Two studies addressed this issue by experimentally inducing differential attentional responses to emotional stimuli using a modified dot probe task, and then examining the impact of such attentional manipulation on subsequent emotional vulnerability. The results supported the hypothesis that the induction of attentional bias should serve to modify emotional vulnerability, as revealed by participants' emotional reactions to a final standardized stress task. These findings provide a sound empirical basis for the previously speculative proposal that attentional bias can causally mediate emotional vulnerability, and they suggest the possibility that cognitive-experimental procedures designed to modify selective information processing may have potential therapeutic value.     

Processing "d-linked" phrases

Linguists draw a distinction between two types of interrogatives: discourse linked (d-linked) phrases such as which man, which implies the existence of a set of contextually determined entities (men) from which the speaker is asking for a choice, and non–d-linked interrogatives such as who, which carry no such implication. Two questionnaires and an on-line reading study showed that readers prefer a d-linked phrase more than a non–d-linked phrase as the antecedent for a pronoun, suggesting that d-linked phrases are immediately instantiated in a discourse representation that is checked during the process of pronoun interpretation. Comparable difficulty is not observed for non–d-linked interrogatives. A questionnaire and an on-line listening study also showed that readers and listeners were more willing to accept a grammatical island violation containing a pronoun when the pronoun's antecendent was a d-linked interrogative than when the antecedent was non–d-linked, suggesting that they check a discourse representation for the pronoun antecedent. All results suggest that d-linked phrases are immediately interpreted in a discourse representation, not just in a syntactic representation.     

Childhood maltreatment and maltreatment‐specific inferences: A test of Rose and Abramson's (1992) extension of the hopelessness theory

In extending the etiological chain of the hopelessness theory of depression (Abramson, Metalsky, & Alloy, 1989), Rose and Abramson (1992) proposed a developmental model by which childhood maltreatment may contribute to the development of a negative inferential style. Once developed, this negative inferential style leaves the individual vulnerable to developing hopelessness and symptoms of hopelessness depression. In the current cross‐sectional study, reports of childhood emotional, but not physical or sexual, maltreatment were significantly related to undergraduates' inferential styles. In addition, results from path analyses indicated that inferences about specific experiences of childhood emotional maltreatment mediated this relationship. Testing Rose and Abramson's entire model, results from path analyses supported a partial, but not full, mediation model.     

Differences Between Minority,Majority, and Unanimous Group Members in the Communication of Information

This article integrates research on minority influence and information sampling in groups. The traditional information‐sampling paradigm implies that the discussion bias for common over unique information affects all types of groups universally. We proposed an alternative in which information sampling depends on the composition of opinions. We proposed that groups with a minority opinion may focus more on unique information and that a minority opinion may lead majority members to consider more preference‐inconsistent information. In a study that tested how minority, majority, and unanimous group members differ in their discussion of information, results lent no support for the alternative conception of information sampling. However, when the minority prevailed, minority members repeated significantly more common information than when the majority prevailed.     

Global reports of childhood maltreatment versus recall of specific maltreatment experiences: Relationships with dysfunctional attitudes and depressive symptoms

Although studies have suggested that reports of childhood maltreatment are related to depressive cognitions and symptom levels in adults, it is unclear whether the significant relations reported are due to the recall of specific maltreatment experiences, how individuals globally label their experiences (i.e., whether they believe they were maltreated during childhood), or both. Results from the current study supported the moderating role of global beliefs only for childhood sexual maltreatment. Specifically, the relationship between reports of specific childhood sexual maltreatment experiences and both dysfunctional attitudes and depressive symptom levels was significant only among participants who also globally endorsed a history of childhood sexual maltreatment. In contrast, the correlates of specific childhood emotional and physical maltreatment experiences were, for the most part, independent of whether the participants globally endorsed childhood emotional or physical maltreatment, respectively.