Making the uncontrollable seem controllable: the role of action in the illusion of control

It is well known that certain variables can bias judgements about the perceived contingency between an action and an outcome, making them depart from the normative predictions. For instance, previous studies have proven that the activity level or probability of responding, P(R), is a crucial variable that can affect these judgements in objectively noncontingent situations. A possible account for the P(R) effect is based on the differential exposure to actual contingencies during the training phase, which is in turn presumably produced by individual differences in participants' P(R). The current two experiments replicate the P(R) effect in a free-response paradigm, and show that participants' judgements are better predicted by P(R) than by the actual contingency to which they expose themselves. Besides, both experiments converge with previous empirical data, showing a persistent bias that does not vanish as training proceeds. These findings contrast with the preasymptotic and transitory effect predicted by several theoretical models.     

Temporal contexts: filling the gap between episodic memory and associative learning

People can create temporal contexts, or episodes, and stimuli that belong to the same context can later be used to retrieve the memory of other events that occurred at the same time. This can occur in the absence of direct contingency and contiguity between the events, which poses a challenge to associative theories of learning and memory. Because this is a learning and memory problem, we propose an integrated approach. Theories of temporal contexts developed in the memory tradition provide interesting predictions that we test using the methods of associative learning to assess their generality and applicability to different settings and dependent variables. In 4 experiments, the integration of these 2 areas allows us to show that (a) participants spontaneously create temporal contexts in the absence of explicit instructions; (b) cues can be used to retrieve an old temporal context and the information associated with other cues that were trained in that context; and (c) the memory of a retrieved temporal context can be updated with information from the current situation that does not fit well with the retrieved memory, thereby helping participants to best adapt their behavior to the future changes of the environment.     

Post‐identification feedback effects: Investigators and evaluators

We investigated the effects of post‐identification feedback and viewing conditions on beliefs and interviewing tactics of participant‐investigators, crime reports of participant‐witnesses and participant‐evaluators' credibility judgments of the witnesses. Study 1 participants assumed the roles of witness and investigator (N = 167 pairs). Witnesses' view of a simulated crime video was manipulated by distance from viewing monitor: 2 or 9 ft. Participants made a line‐up identification and received either positive feedback or no feedback. Significant effects for witnesses and investigators were associated with viewing condition and post‐identification feedback. Interviews between investigator‐witness pairs were videotaped. Investigators asked more positive, leading questions when they were led to believe that the witness had identified the suspect. In Study 2 evaluators (N = 302) viewed the witness‐investigator interviews. Viewing condition had no effect on judgments of witness credibility but positive post‐identification feedback led evaluators to judge witnesses as more credible than witnesses who received no feedback. Copyright © 2010 John Wiley & Sons, Ltd.     

Perceptions of breastfeeding in mothers of babies born preterm in comparison to mothers of full-term babies

The purpose of the present study was: a) to describe the theme of verbalizations about breastfeeding in mothers' pre-term (M-PT) and full-term (M-FT) infants; b) to examine the association between these themes and mother's anxiety and depression indicators and socio-demographic characteristics and, neonatal characteristics of the infants. The sample consisted of 50 M-PT and 25 M-FT. The mothers were assessed through State-Trait Anxiety Inventory and Beck Depression Inventory and were interviewed using a Guide focusing breastfeeding issues. The M-PT group had significantly more mothers with clinical symptom of anxiety than the M-FT group. The M-PT reported more uncertainties and worries about breastfeeding and figured out more obstacles for the successful breastfeeding than the M-FT. These reports were associated positively with the infants' risk neonatal status; lower birth-weight, higher neonatal clinical risk, and more length time stay in NICU were associated with more mothers' worries and seeing obstacles for breastfeeding. In conclusion, the strategies to enhance the breastfeeding rate in the preterm population have to take into account the mothers' psychological status and their ideas in addition to offering information about the advantages of breastfeeding for child development.     

Space Fortress game training and executive control in older adults: a pilot intervention

We investigated the feasibility of using the Space Fortress (SF) game, a complex video game originally developed to study complex skill acquisition in young adults, to improve executive control processes in cognitively healthy older adults. The study protocol consisted of 36 one-hour game play sessions over 3 months with cognitive evaluations before and after, and a follow-up evaluation at 6 months. Sixty participants were randomized to one of three conditions: Emphasis Change (EC)--elders were instructed to concentrate on playing the entire game but place particular emphasis on a specific aspect of game play in each particular game; Active Control (AC)--game play with standard instructions; Passive Control (PC)--evaluation sessions without game play. Primary outcome measures were obtained from five tasks, presumably tapping executive control processes. A total of 54 older adults completed the study protocol. One measure of executive control, WAIS-III letter-number sequencing, showed improvement in performance from pre- to post-evaluations in the EC condition, but not in the other two conditions. These initial findings are modest but encouraging. Future SF interventions need to carefully consider increasing the duration and or the intensity of the intervention by providing at-home game training, reducing the motor demands of the game, and selecting appropriate outcome measures.     

The coherence of critical event narratives and adolescents' psychological functioning

The present study examined the coherence of low- and high-point life-event narratives among adolescents (aged between 12 and 21 years) and their psychological functioning in terms of well-being and prosocial behaviour. The results showed robust age-related increases in narrative coherence. Age and gender significantly moderated the associations between narrative coherence and psychological functioning. Specifically, higher levels of coherence were significantly associated with prosocial behaviour only for older adolescents. Higher levels of narrative coherence were also associated with lower levels of well-being among adolescent boys, but not among adolescent girls. Results are discussed in terms of why coherent life-event narratives may not be linked to benefits for younger adolescents and for boys, and how low- and high-point life events both contribute to identity construction.     

Moderators and mediators of remission in family-based treatment and adolescent focused therapy for anorexia nervosa

Few of the limited randomized controlled trails (RCTs) for adolescent anorexia nervosa (AN) have explored the effects of moderators and mediators on outcome. This study aimed to identify treatment moderators and mediators of remission at end of treatment (EOT) and 6- and 12-month follow-up (FU) for adolescents with AN (N = 121) who participated in a multi-center RCT of family-based treatment (FBT) and individual adolescent focused therapy (AFT). Mixed effects modeling were utilized and included all available outcome data at all time points. Remission was defined as ≥ 95% IBW plus within 1 SD of the Eating Disorder Examination (EDE) norms. Eating related obsessionality (Yale-Brown-Cornell Eating Disorder Total Scale) and eating disorder specific psychopathology (EDE-Global) emerged as moderators at EOT. Subjects with higher baseline scores on these measures benefited more from FBT than AFT. AN type emerged as a moderator at FU with binge-eating/purging type responding less well than restricting type. No mediators of treatment outcome were identified. Prior hospitalization, older age and duration of illness were identified as non-specific predictors of outcome. Taken together, these results indicate that patients with more severe eating related psychopathology have better outcomes in a behaviorally targeted family treatment (FBT) than an individually focused approach (AFT).     

Fathers show modifications of infant-directed action similar to that of mothers

Mothers' actions are more enthusiastic, simple, and repetitive when demonstrating novel object properties to their infants than to adults, a behavioral modification called "infant-directed action" by Brand and colleagues (2002). The current study tested whether fathers also tailor their behavior when interacting with infants and whether this modification differs from the infant-directed action that mothers show. A sample of 42 parents (21 mothers and 21 fathers) demonstrated the properties of two novel toys to their infants (12-month-olds) and to other adults. Fathers and mothers modified their actions with respect to repetitiveness, rate, range of motion, proximity, interactiveness, and enthusiasm compared with interactions with other adults. Fathers differed from mothers with respect to proximity, carrying out actions closer to their infants than mothers did. These results provide evidence that fathers show modifications in their infant-directed action that is similar to that of mothers.     

Motivational Interviewing Promotes Adherence and Improves Wellbeing in Pre-Dialysis Patients with Advanced Chronic Kidney Disease

Low rates of adherence to medical treatments and adverse emotional states are a widespread problem in advanced chronic kidney disease (ACKD). Motivational interviewing using the stages of change model is an effective combination in promoting behavior modifications. The objective of the present study was to determine the effectiveness of an individual, pre-dialysis intervention program (monthly sessions of 90 min over a 6-month period) in terms of adherence, emotional state and health-related quality of life (HRQL). Forty-two patients were evaluated for adherence, depression, anxiety and HRQL with standardized self-report questionnaires. Biochemical markers were also registered. The results show that after the intervention, patients reported significantly higher levels of adherence, lower depression and anxiety levels, and better HRQL (i.e., general health and emotional role domains). Biochemical parameters were controlled significantly better after the intervention, except for iPTH. These findings highlight the potential benefit of applying individual psycho-educational intervention programs based on motivational interviewing and using the stages of change model to promote adherence and wellbeing in ACKD patients.