Effects of redundant visual stimuli on temporal order judgments

Four experiments were conducted in order to compare the effects of stimulus redundancy on temporal order judgments (TOJs) and reaction times (RTs). In Experiments 1 and 2, participants were presented in each trial with a tone and either a single visual stimulus or two redundant visual stimuli. They were asked to judge whether the tone or the visual display was presented first. Judgments of the relative onset times of the visual and the auditory stimuli were virtually unaffected by the presentation of redundant, rather than single, visual stimuli. Experiments 3 and 4 used simple RT tasks with the same stimuli, and responses were much faster to redundant than to single visual stimuli. It appears that the traditional speedup of RT associated with redundant visual stimuli arises after the stimulus detection processes to which TOJs are sensitive.     

Adult attachment and patterns of extradyadic involvement

Relationships between patterns of extradyadic involvement (EDI) and adult attachment were examined separately with undergraduates and community adults reporting prior EDI. Those with fearful or preoccupied styles reported more intimacy motivations for EDI, and undergraduates with these styles also reported more self-esteem motivations. Conversely, those with a dismissive style reported more autonomy motivations for EDI. Those with a fearful attachment style reported ambivalence about intimacy in the EDI. Fearful and preoccupied undergraduates and community males reported a more obsessive extradyadic relationship. However, dismissive individuals did not report more casual EDI. Gender effects also emerged, with females reporting more intimacy motivations than males, and undergraduate males reporting more casual EDI than undergraduate females. In the undergraduate sample, dismissive males had the most extradyadic partners over the prior 2 years relative to all other groups, and preoccupied females reported more partners than secure females. Clinical implications of these findings are discussed.     

A function of form: terror management and structuring the social world

Drawing on lay epistemology theory, the authors assessed a terror management analysis of the psychological function of structuring social information. Seven studies tested variations of the hypothesis that simple, benign interpretations of social information function, in part, to manage death-related anxiety. In Studies 1-4, mortality salience (MS) exaggerated primacy effects and reliance on representative information, decreased preference for a behaviorally inconsistent target among those high in personal need for structure (PNS), and increased high-PNS participants' preference for interpersonal balance. In Studies 5-7, MS increased high-PNS participants' preference for interpretations that suggest a just world and a benevolent causal order of events in the social world.     

A computer program for Spearman-Kärber and probit analysis of psychometric function data

PMETRIC is a computer program for the analysis of observed psychometric functions. It can estimate the parameters of these functions, using either probit analysis (a parametric technique) or the Spearman-Kärber method (a nonparametric one). For probit analysis, either a maximum likelihood or a minimum χ² criterion may be used for parameter estimation. In addition, standard errors of parameter estimates can be estimated via bootstrapping. The program can be used to analyze data obtained from either yes-no orm-alternative forced-choice tasks. To facilitate the use of PMETRIC in simulation work, an associated program, PMETGEN, is provided for the generation of simulated psychometric function data. Use of PMETRIC is illustrated with data from a duration discrimination task.     

The social risk hypothesis of depressed mood: evolutionary, psychosocial, and neurobiological perspectives

The authors hypothesize that depressed states evolved to minimize risk in social interactions in which individuals perceive that the ratio of their social value to others, and their social burden on others, is at a critically low level. When this ratio reaches a point where social value and social burden are approaching equivalence, the individual is in danger of exclusion from social contexts that, over the course of evolution, have been critical to fitness. Many features of depressed states can be understood in relation to mechanisms that reduce social risk in such circumstances, including (a) hyper-sensitivity to signals of social threat from others, (b) sending signals to others that reduce social risks, and (c) inhibiting risk-seeking (e.g., confident, acquisitive) behaviors. These features are discussed in terms of psychosocial and neurobiological research on depressive phenomena.     

Waking Rip van Winkle: why developments in the last 20 years should teach the mental health system not to use housing as a tool of coercion

Many housing programs for people with mental illnesses rely on models that require the person to adhere to treatment as a condition of continuing access to housing. These models that 'bundle' housing and treatment are relics of a past in which persons with mental illnesses were afforded little real choice in treatment, housing and other social supports. Conditioning access to housing in this manner is coercive and at odds with current thinking regarding treatment, as well as legal principles that shape the environment in which treatment is provided. This article summarizes the reasons why housing for people with mental illnesses should be provided free of the use of coercion.     

Enhanced retention in the passive-avoidance task by 5-HT(1A) receptor blockade is not associated with increased activity of the central nucleus of the amygdala

The effect of blockade of 5-HT1A receptors was investigated on (1). retention in a mildly aversive passive-avoidance task, and (2). spontaneous single-unit activity of central nucleus of the amygdala (CeA) neurons, a brain site implicated in modulation of retention. Systemic administration of the selective 5-HT1A antagonist NAN-190 immediately after training markedly-and dose-dependently-facilitated retention in the passive-avoidance task; enhanced retention was time-dependent and was not attributable to variations in wattages of shock received by animals. Systemic administration of NAN-190 had mixed effects on spontaneous single-unit activity of CeA neurons recorded extracellularly in vivo; microiontophoretic application of 5-HT, in contrast, consistently and potently suppressed CeA activity. The present findings-that 5-HT1A receptor blockade by NAN-190 (1). enhances retention in the passive-avoidance task, and (2). does not consistently increase spontaneous neuronal activity of the CeA-provide evidence that a serotonergic system tonically inhibits modulation of retention in the passive-avoidance task through activation of the 5-HT1A receptor subtype at brain sites located outside the CeA.     

The limitations of orthographic analogy in early reading development: performance on the clue-word task depends on phonological priming and elementary decoding skill, not the use of orthographic analogy

Two experiments investigated the mechanisms underlying analogical transfer in the clue-word reading task developed by Goswami and her colleagues. Across both experiments, an equivalent number of "analogy" responses were made regardless of whether the clue word was seen or just heard. In addition, the number of "analogy" responses to words sharing both orthographic and phonological overlap with the clue words was no greater than that shown to words sharing only pronunciations. These results provide no evidence for the view that beginning readers make genuine orthographic-based analogies. Instead, the findings are interpreted within a framework in which phonological priming, in combination with the children's own partial decoding attempts based on limited orthographic knowledge, account for their performance on the clue-word task. It is concluded that the extent to which beginning readers make orthographic analogies is overestimated and as a consequence, theories that emphasize the importance of orthographic analogy as a mechanism driving the development of early reading skills need to be questioned.     

A model for brief assessment of attachment and its application to women in inpatient treatment for trauma-related psychiatric disorders

We adapted self-report measures of attachment style to the psychological assessment of women in specialized inpatient treatment for trauma-related disorders. The study employed 2 measures of adult attachment style, the Relationship Questionnaire (Bartholomew & Horowitz, 1991) and the Adult Attachment Scale (Collins & Read, 1990) as well as our Current Attachment Relationships questionnaire, which assesses the extent of social support in secure attachments. We administered these measures to 99 patients and to a convenience sample of 154 women in the community. We found modest correspondence between the 2 attachment style measures and substantial relations between attachment styles and range of secure attachment relationships. Women in the trauma sample reported insecure attachment styles and relatively few secure attachment figures. We discuss the implications of these findings for clinical assessment.     

Assessing Religious Faith in Medical Patients: Cross-Validation of the Santa Clara Strength of Religious Faith Questionnaire

Growing attention has focused on the relationship between religiosity and health outcomes. However, research has been constrained by the limited availability of measures suitable for use with medical patients. This study examined the psychometric properties of the Santa Clara Strength of Religious Faith Questionnaire (SCSORF) in two well-defined samples of medical patients, representing a range of illness severity: 1) 175 women seen at a gynecology clinic; and 2) 104 cancer patients treated at a bone marrow transplantation program. Evidence for convergent validity was demonstrated by moderately high correlations with other measures of religious involvement. Divergent validity was demonstrated by small associations with social desirability. The measure was not strongly associated with demographic background or medical variables. Modest correlations with conceptually-related measures commonly used in health research (e.g., social support, optimism, existential meaning, purpose in life) further supported the divergent validity of the instrument. Results suggest that this may be a useful, concise measure for assessing religious involvement in medical patients.