Vection in depth during consistent and inconsistent multisensory stimulation

We examined vection induced during physical or simulated head oscillation along either the horizontal or depth axis. In the first two experiments, during active conditions, subjects viewed radial-flow displays which simulated viewpoint oscillation that was either in-phase or out-of-phase with their own tracked head movements. In passive conditions, stationary subjects viewed playbacks of displays generated in earlier active conditions. A third control, experiment was also conducted where physical and simulated fore-aft oscillation was added to a lamellar flow display. Consistent with ecology, when active in-phase horizontal oscillation was added to a radial-flow display it modestly improved vection compared to active out-of-phase and passive conditions. However, when active fore-aft head movements were added to either a radial-flow or a lamellar-flow display, both in-phase and out-of-phase conditions produced very similar vection. Our research shows that consistent multisensory input can enhance the visual perception of self-motion in some situations. However, it is clear that multisensory stimulation does not have to be consistent (i.e., ecological) to generate compelling vection in depth.     

Comparing measures of attachment: "To whom one turns in times of stress", parental warmth, and partner satisfaction

The Attachment and Clinical Issues Questionnaire (ACIQ; M. A. Lindberg & S. W. Thomas, 2011), was developed over an 18-year period containing 29 scales. The purpose of the present study was to test (a) the validity of the attachment scales in terms of how they predict to whom one turns in times of stress and for affective sharing, and (b) how the attachment scales compared with the Experiences in Close Relationship Questionnaire (ECR) in terms of concurrent, convergent, and discriminant evidence. The relevant secure scales of the ACIQ predicted to whom one turned in study 1, and study 2 demonstrated good convergent evidence with the ECR, but superior concurrent evidence in predicting partner satisfaction, and superior discriminant evidence in differentially correlating with mother and father warmth. Thus, the ACIQ passed essential validity and psychometric tests and was a more robust measure than the ECR with these defining characteristics of attachment.     

The Impact of the Family Environment on the Ethnic Identity Development of Multiethnic College Students

In this qualitative study of 5 multiethnic college students, the findings indicate that family environment played a significant role in the participants' ability to develop secure ethnic identities. The participants who described their family members as supportive of their multiple ethnic backgrounds also felt confident about their ethnic identity, whereas the participants who described their family members as unsupportive of their multiple ethnic backgrounds maintained that they often felt insecure about their ethnic identity.     

EVALUATION AND TRAINING OF YES‐NO RESPONDING ACROSS VERBAL OPERANTS

Topographically similar verbal responses may be functionally independent forms of operant behavior. For example, saying yes or no may have different functions based on the environmental conditions in effect. The present study extends previous research on both the assessment and acquisition of yes and no responses across contexts in children with language deficits and further examined the functional independence of topographically similar responses. All participants in the present study acquired yes and no responses within verbal operants (e.g., mands). However, generalization of the responses across novel verbal operants (e.g., tacts to intraverbals) did not occur without additional training, thus supporting Skinner's (1957) assertion of functional independence of verbal operants.     

Integrating Objective and Subjective Social Class to Advance Our Understanding of Externalizing Problem Behavior in Children and Adolescents: A Conceptual Review and Model

Clinical Child and Family Psychology Review - Extant research has identified both objective measures of socioeconomic status (SES) and subjective social class (SSC) as important predictors of...     

Relative reinforcing effects of different oral ethanol doses in rhesus monkeys

The relative reinforcing effects of different doses of orally delivered ethanol were evaluated. Mouth-contact responding by rhesus monkeys was measured under concurrent fixed-ratio fixed-ratio schedules of liquid delivery (0.67 ml/delivery) from each of two spouts during daily 3-hr sessions. Experiment 1 examined persistence of responding with ethanol (2%, 8%, and 32% wt/vol) and water available. When fixed-ratio values from 8 to 128 were tested, the number of ethanol deliveries obtained per session decreased as the response requirement increased. The decrease in deliveries was less at higher than at lower ethanol concentrations, however. Experiment 2 examined choice between two ethanol concentrations under concurrent fixed-ratio 16 schedules (4% vs. 8%, 4% vs. 16%, 8% vs. 16%, 2% vs. 8%, 2% vs. 32%, 8% vs. 32%). Higher concentrations (16%, 32%) generally maintained more responding than concurrently available concentrations of 8% or less. An exception was the observation of a preference for 8% over 32% ethanol. When the fixed-ratio value was increased, however, the relative preference for these two doses was reversed so that 32% ethanol maintained more responding than 8% ethanol. Thus, the direction of the preference depended on the size of the response requirement. These results indicate that the reinforcing effects of ethanol increase with dose.     

Gender Differences in Pain Perception: The Mediating Role of Self-Efficacy Beliefs

The purpose of this study was to assess the extent to which the gender differences in response to the cold pressor test (CPT) are mediated by self-efficacy beliefs. One hundred twelve college undergraduates (69 women and 43 men) engaged in CPT and completed self-report measures of demographic information, physical self-efficacy (i.e., expectations about one's overall physical capabilities), and task-specific self-efficacy (i.e., beliefs about one's ability to cope successfully with the upcoming CPT). In addition, participants provided subjective ratings of pain intensity every 30 s during CPT and were evaluated for tolerance during CPT (up to 4 min). Consistent with past research, men reported lower average subjective ratings of pain intensity and showed higher tolerance for CPT. Path analyses indicated that associations between gender and pain perception were fully mediated by self-efficacy beliefs. Men reported greater physical self-efficacy and task-specific self-efficacy than women did. In turn, higher task-specific self-efficacy ratings predicted increases in tolerance for pain and lower ratings of average pain intensity. Findings indicate that self-efficacy beliefs are one factor that accounts for gender differences in responses to painful stimulation. Future researchers should evaluate conditions under which heightened self-efficacy may be beneficial and harmful, and they should employ experimental designs that incorporate opportunities for use of both communal–interpersonal and individualistic coping strategies in light of possible gender differences in preferred approaches to coping with pain.