The role of white matter hyperintensities and medial temporal lobe atrophy in age-related executive dysfunctioning

Various studies support an association between white matter hyperintensities (WMH) and deficits in executive function in nondemented ageing. Studies examining executive functions and WMH have generally adopted executive function as a phrase including various functions such as flexibility, inhibition, and working memory. However, these functions include distinctive cognitive processes and not all may be affected as a result of WMH. Furthermore, atrophy of the medial temporal lobe (MTA) is frequently observed in ageing. Nevertheless, in previous studies of nondemented ageing MTA was not considered when examining a relationship between white matter and executive function. The goal of the present study was to examine how WMH and MTA relate to a variety of executive functions, including flexibility, fluency, inhibition, planning, set shifting, and working memory. Strong correlations were observed between WMH and MTA and most of the executive functions. However, only MTA was related to flexibility and set shifting performance. Regression analysis furthermore showed that MTA was the strongest predictor of working memory, after which no further significant association with WMH was noted. Alternatively, both MTA and periventricular hyperintensities independently predicted inhibition performance. These findings emphasize the importance of MTA when examining age-related decline in executive functioning.     

The Function of Fiction is the Abstraction and Simulation of Social Experience

ABSTRACT— Fiction literature has largely been ignored by psychology researchers because its only function seems to be entertainment, with no connection to empirical validity. We argue that literary narratives have a more important purpose. They offer models or simulations of the social world via abstraction, simplification, and compression. Narrative fiction also creates a deep and immersive simulative experience of social interactions for readers. This simulation facilitates the communication and understanding of social information and makes it more compelling, achieving a form of learning through experience. Engaging in the simulative experiences of fiction literature can facilitate the understanding of others who are different from ourselves and can augment our capacity for empathy and social inference.     

Perceptions Of Treatment Helpfulness And Depressive Symptomology In Psychiatric Inpatients On A Cognitive Therapy Unit

This study examined 123 psychiatric inpatients' perceptions of treatment helpfulness using the Treatment Experience Questionnaire (TEQ), a measure that includes perceived elpfulness ratings for specific cognitive and non-cognitive aspects of treatment. It was predicted that (a) the inpatients on the cognitive therapy unit would perceive the cognitive therapy components of the program as more helpful than the non-cognitive components, and that (b) the perception of the helpfulness of the cognitive and noncognitive therapy components would significantly predict discharge depression scores, as measured by the Beck Depression Inventory (BDI). The results indicated that the inpatients rated the helpfulness of both the cognitive and non-cognitive aspects of treatment highly and that there was a modest yet significant relationship between perceived helpfulness and symptom change. The BDI scores at admission explained considerably more of the variation in discharge BDI scores than the perceptions of helpfulness. These results are discussed in light of past and future research.     

Why You Can't Kick the Bucket as You Slowly Die: Verbs in Idiom Comprehension

Idiomatic phrases differ in their degree of analyzability. Some idioms are highly decomposable with their parts independently contributing to their overall figurative meaning (e.g. pop the question) while other idioms are nondecomposable with parts that do not contribute to their idiomatic meaning (e.g. kick the bucket). Nonetheless, even the parts of nondecomposable idioms might have a role in determining what they specifically mean. For example, the verb kick, in kick the bucket implies a quickness or suddenness to the death such that kick the bucket means to die suddenly rather than to die slowly. We report the findings of three experiments showing, in different ways, how the action of the verb contributes to the overall figurative meaning for some nondecomposable idioms. Together, these studies suggest that even nondecomposable idioms are not truly frozen as, at least, part of their overall figurative meanings are shaped by the particular verbs used in these phrases.     

Spilling the beans on understanding and memory for idioms in conversation

Three experiments examine people's understanding and memory for idioms. Experiment 1 indicates that in a conversational context, subjects take less time to comprehend conventional uses of idiomatic expression than unconventional, literal uses. Paraphrase judgment errors show that there is a strong bias to interpret idiomatic expressions conventionally when there is no preceding context; however, subjects interpret literal uses of these expressions correctly when there is appropriate context. Experiment 2 showed that in a free recall task, literal uses of idioms are remembered better than conventional uses of these utterances. Experiment 3 indicated that in conversation, literal and idiomatic recall prompts facilitate memory for literal uses of idioms equally well. The results from these experiments suggest that memory for conventional utterances is not as good as for unconventional uses of the same utterances and that subjects understanding unconventional uses of idioms tend to analyze the idiomatic meaning of these expressions before deriving the literal, unconventional interpretation. It is argued that the traditional distinction between literal and metaphoric language is better characterized as a continuum between conventional and unconventional utterances.     

A Healthy Lifestyle Program for the Treatment of Obesity in Minority Men

Historically, minority males have had limited success in programs designed to reduce weight. Twenty-five obese minority males participated in a healthy lifestyle program designed to treat essential hypertension, hyperlipidemia, type II diabetes, obesity, and hypothyroidism. Coined the LE ³ AN Lifestyle Program (emphasizing healthy lifestyles, realistic exercise, reasonable expectations and emotions, attitudes, and nutrition), the program offered a treatment model that involved reasonable low-intensity short exercise regimens, instruction, and extensive practice in making healthy food choices, behavior modification, and self-monitoring techniques coupled with guidance on realistic weight loss and exercise expectations. The participants were able to lose 13 Ib during the inpatient plus day treatment phases of the program and continued to maintain a 19-lb weight loss at 12 months. A program overview, case examples, and suggestions to improve outcome efficacy with difficult to manage obese, minority, male patients are provided.     

Striving for optimal relevance when answering questions

When people are asked "Do you have the time?" they can answer in a variety of ways, such as "It is almost 3", "Yeah, it is quarter past two", or more precisely as in "It is now 1:43". We present the results of four experiments that examined people's real-life answers to questions about the time. Our hypothesis, following previous research findings, was that people strive to make their answers optimally relevant for the addressee, which in many cases allows people to give rounded, and not exact, time responses. Moreover, analyses of the non-numeral words, hesitations, and latencies of people's verbal responses to time questions reveal important insights into the dynamics of speaking to achieve optimal relevance. People include discourse markers, hesitation marks, like "uh" and "um", and pauses when answering time questions to maximize the cognitive effects (e.g., a rounded answer is adequate) listeners can infer while minimizing the cognitive effort required to infer these effects. This research provides new empirical evidence on how relevance considerations shape collaborative language use.