Where to look first for an explanation of induction with uncertain categories

Recent research has examined how people predict unobserved features of an object when its category membership is ambiguous. The debate has focused on whether predictions are based solely on information from the most likely category, or whether information from other possible categories is also used. In the present experiment, we compared these category-based approaches with feature conjunction reasoning, where predictions are based on a comparison among exemplars (rather than categories) that share features with a target object. Reasoning strategies were assessed by examining patterns of feature prediction and by using an eye gaze measure of attention during induction. The main findings were (1) the majority of participants used feature conjunction rather than categorical strategies, (2) people predominantly gazed at the exemplars that were most similar to the target object, and (3) although people gazed most at the most probable category to which an object could belong, they also attended to other plausible category alternatives during induction. These findings question the extent to which category-based reasoning is used for induction when category membership is uncertain.     

The effectiveness of acceptance and commitment therapy bibliotherapy for enhancing the psychological health of Japanese college students living abroad

International students often experience significant psychological distress but empirically tested programs are few. Broadly distributed bibliotherapy may provide a cost-effective approach. About half of the Japanese international students in a western university in the United States (N = 70) were randomly assigned to a wait-list or to receive a Japanese translation of a broadly focused acceptance and commitment therapy (ACT) self-help book. Although recruited without regard to health status, the sample was highly distressed with nearly 80% exceeding clinical cutoffs on one or more measures. After a 2-months period for the first treatment group to read the book and a 2-month follow up, wait-list participants also received the book. Students receiving the book showed significantly better general mental health at post and follow up. Moderately depressed or stressed, and severely anxious students showed improvement compared to those not receiving the book. These patterns were repeated when the wait-list participants finally received the book. Improvements in primary outcomes were related to how much was learned about an ACT model from the book. Follow-up outcomes were statistically mediated by changes in psychological flexibility, but not vice versa and were moderated by level of initial flexibility. Overall, the data suggest that ACT bibliotherapy improved the mental health and psychological flexibility of Japanese international students.     

The relationship between basic need satisfaction and emotional eating in obesity

Emotional eating has been identified as a factor that promotes the development and maintenance of obesity and hinders its treatment. This study investigated the relationship between unsatisfied basic needs and emotional eating, including the mediating factors of self‐esteem and coping strategies. The results from a survey of 136 obese individuals indicated support for a significant relationship between basic need satisfaction and emotional eating, with a mediating effect of negative coping strategies. These findings extend previous research and provide guidance on how to help individuals who engage in emotional eating by focusing on developing more adaptive coping strategies.     

The role of perceptual and cognitive processes in addition-subtraction studies with 5-month-old infants

After a brief familiarization period to either one or two toys 5-month-olds gave a clear preference for perceptually novel displays, suggesting that replicable findings of greater looking at an unexpected arithmetic outcome in addition/subtraction experiments cannot easily be attributed to simple familiarity preferences.     

Event-related potentials, reaction time, and response selection of skilled and less-skilled cricket batsmen

The differences in P300 latency, P300 amplitude, response selection, and reaction time between skilled and less-skilled cricket batsmen have been investigated. Eight skilled and ten less-skilled right-handed batsmen each viewed 100 in-swing, 100 out-swing, and 40 slower deliveries displayed in random sequence from projected video footage whilst their responses and electroencephalograms were recorded. Logistic regression was used to derive a discriminative function for the P300 data. This was done to determine whether the skilled batsmen differed from the less-skilled batsmen on the basis of pooled P300 amplitude and latency data. All the batsmen were correctly characterised as being skilled or less-skilled. Logistic regression equations with reaction time and correctness of response data indicated that behavioural data do not correctly classify skilled performance. It is suggested that skilled cricket batsmen have a superior perceptual decision-making ability compared with less-skilled cricket batsmen, as measured by P300 latency and amplitude. This appears to be the first study showing a link between skill and cerebral cortical activity during a perceptual cricket batting task and it could pave the way for future studies on mental processing in cricket batsmen.     

The pattern of subjective anxiety during in-session exposures over the course of cognitive-behavioral therapy for clients with social anxiety disorder

Exposure-based therapies are efficacious treatments for social anxiety disorder (i.e., Gould et al., 1997). Much of the theory behind these treatments is derived from Foa and colleagues' (Foa, Huppert, & Cahill, 2005; Foa & Kozak, 1986) work on emotional processing. However, there has been little research examining individual differences in emotional processing patterns within and between treatment sessions among clients with social anxiety disorder. This study utilized longitudinal data analytic methods to examine changes in subjective anxiety during the first 3 exposure sessions in group and individual cognitive-behavioral therapy for social anxiety disorder. The results of this study provide preliminary evidence that, although anxiety generally decreases across exposures, some individuals experience considerable fluctuations in anxiety during a single exposure. Although anxiety during the first exposure was not significantly related to outcome, the relationship between anxiety during exposure and outcome became stronger during subsequent exposures. Overall, this study highlights the need to conduct more fine-grained analyses to better understand the mechanisms underlying exposure-based therapies for social anxiety disorder.     

Restriction of working memory capacity during worry

The authors report the first direct assessment of working memory capacity when people engage in worry. High and low worriers performed a random key-press task while thinking about a current worry or a positive personally relevant topic. High (but not low) worriers showed more evidence of restricted capacity during worry than when thinking about a positive topic. These findings suggest that high worriers have less residual working memory capacity when worrying than when thinking about other topics and, thus, have fewer attentional resources available to redirect their thoughts away from worry.     

Is it the sound or your relationship to it? The role of acceptance in predicting tinnitus impact

Tinnitus is an experience of sound in the absence of an appropriate external source. A symptom that can accompany most central or peripheral dysfunctions of the auditory system, tinnitus can lead to significant distress, depression, anxiety, and decreases in life quality. This paper investigated the construct of psychological acceptance in a population of tinnitus patients. First, a cross-sectional study (N = 77) was conducted in which a tinnitus specific acceptance questionnaire was developed. Results showed that a Tinnitus Acceptance Questionnaire (TAQ) generated good internal consistency. A factor solution was derived with two factors: activity engagement and tinnitus supression. Second, a longitudinal study (N = 47) investigated the mediating role of acceptance on the relationship between tinnitus distress at baseline and tinnitus distress, anxiety, life quality, and depression at a 7-month follow-up. The results showed full mediation of activity engagement for depression and life quality at follow-up, partial mediation for tinnitus distress, and no mediation for anxiety. The role of acceptance in the negative impact of tinnitus distress merits further investigation.     

The Zuni Life Skills Development Program: a school/community-based suicide prevention intervention

The Zuni Life Skills Development Program, an effective community-initiated and high-school-based suicide prevention intervention, is featured. Development and evaluation of this intervention are followed by note of the specific challenges associated with stabilizing the program. A more tribally diverse, culturally-informed model entitled the American Indian Life Skills Development Curriculum is then presented to illustrate a hybrid approach to the cultural tailoring of interventions. This curriculum is broad enough to address concerns across diverse American Indian tribal groups yet respectful of distinctive and heterogeneous cultural beliefs and practices. Finally, we reflect upon issues in community-based research that emerged during this collaboration.