Discriminating famous from fictional names based on lifetime experience: evidence in support of a signal-detection model based on finite mixture distributions

It is widely accepted that signal-detection mechanisms contribute to item-recognition memory decisions that involve discriminations between targets and lures based on a controlled laboratory study episode. Here, the authors employed mathematical modeling of receiver operating characteristics (ROC) to determine whether and how a signal-detection mechanism contributes to discriminations between moderately famous and fictional names based on lifetime experience. Unique to fame judgments is a lack of control over participants' previous exposure to the stimuli deemed "targets" by the experimenter; specifically, if they pertain to moderately famous individuals, participants may have had no prior exposure to a substantial proportion of the famous names presented. The authors adopted established models from the recognition-memory literature to examine the quantitative fit that could be obtained through the inclusion of signal-detection and threshold mechanisms for two data sets. They first established that a signal-detection process operating on graded evidence is critical to account for the fame judgment data they collected. They then determined whether the graded memory evidence for famous names would best be described with one distribution with greater variance than that for the fictional names, or with two finite mixture distributions for famous names that correspond to items with or without prior exposure, respectively. Analyses revealed that a model that included a d' parameter, as well as a mixture parameter, provided the best compromise between number of parameters and quantitative fit. Additional comparisons between this equal-variance signal-detection mixture model and a dual-process model, which included a high-threshold process in addition to a signal-detection process, also favored the former model. In support of the conjecture that the mixture parameter captures participants' prior experience, the authors found that it was increased when the analysis was restricted to names in occupational categories for which participants indicated high exposure.     

Description of an Intensive Dialectical Behavior Therapy Program for Multidiagnostic Clients With Eating Disorders

The authors describe an intensive outpatient dialectical behavior therapy (DBT) program for multidiagnostic clients with eating disorders who had not responded adequately to standard, empirically supported treatments for eating disorders. The program integrates DBT with empirically supported cognitive behavior therapy approaches that are well established for the treatment of eating disorders. Attention is given to inclusion and exclusion criteria, how the program differs from standard treatments for eating disorders, and the application of specific DBT treatment components for multidiagnostic clients with eating disorders.     

Knowledge and use of memory strategies in amnestic mild cognitive impairment

Despite the inclusion of memory strategy training in many interventions for amnestic mild cognitive impairment (aMCI), little research has directly examined knowledge and use of memory strategies in aMCI and their relationship to memory performance in order to guide the development of targeted interventions. The present study aimed to compare strategy knowledge and use between an aMCI and a healthy older adult (HOA) sample, and to determine the contribution of strategy knowledge and use to memory performance in each of these groups. The sample comprised 37 aMCI and 52 HOA participants aged over 60 years. All participants completed questionnaires to assess strategy knowledge and self-reported use of internal and external strategies in everyday life. In addition, strategy use was observed on the measures of retrospective and prospective memory performance (the CVLT-II and the CAMPROMPT). The aMCI group demonstrated decreased strategy knowledge and observed use of internal strategies, although equivalent observed use of external strategies compared with the HOA group. Furthermore, they reported equivalent use of both internal and external strategies. Observed use of strategies was significantly associated with retrospective memory performance for both groups and prospective memory performance for the aMCI group, supporting the inclusion of strategy training in interventions.     

On the binary quality of recognition and the inconsequentiality of further knowledge: two critical tests of the recognition heuristic

The recognition heuristic is claimed to be distinguished from notions of availability and fluency through its categorical or “binary” treatment of information and the “inconsequentiality” of further knowledge to inferences based on recognition. Using the city‐size task of Goldstein and Gigerenzer ( 2002 ) we demonstrate that: (1) increasing the validity of other information in the environment decreases the reliance on recognition; (2) cities that are both recognized and have other information known about them (e.g. they have a soccer team) are chosen more often than those which are simply recognized; and (3) there is a negative correlation between the time taken to identify a city and the proportion of times it is selected as the larger of a pair. None of these results is predicted by the process model of the recognition heuristic. The implication of the results for the distinction between the recognition, availability and fluency heuristics is discussed. Copyright © 2006 John Wiley & Sons, Ltd.     

哲学与现实生活

作为时代精神之精华的哲学必定懂得现实生活。哲学与现实生活的关系可以通过哲学与民众、哲学与社会实践、真理与价值、知识与信仰、理性与非理性、哲学家的使命感等问题展开出来。人民大众的实践活动,是哲学智慧的源泉。哲学是人类特有的智慧,其特色就在于它的批判性。对现存事物不合理、不公平因素的否定和批判,唤起人民的觉悟,是哲学的革命性、批判性锋芒的光辉体现。哲学不能故步自封,不应固守单纯知识的领地。应该突破哲学就是认识论的唯科学主义的眼界,向价值的领域、信仰的领域、非理性的领域挺进,开拓思想的自由。哲学家是哲学智慧的人格化,促进文化发展和人的全面发展是哲学家的光荣职责和使命。     

Two Concepts of Intrinsic Value

Recent literature on intrinsic value contains a number of disputes about the nature of the concept. On the one hand, there are those who think states of affairs, such as states of pleasure or desire satisfaction, are the bearers of intrinsic value (“Mooreans”); on the other hand, there are those who think concrete objects, like people, are intrinsically valuable (“Kantians”). The contention of this paper is that there is not a single concept of intrinsic value about which Mooreans and Kantians have disagreed, but rather two distinct concepts. I state a number of principles about intrinsic value that have typically (though not universally) been held by Mooreans, all of which are typically denied by Kantians. I show that there are distinct theoretical roles for a concept of intrinsic value to play in a moral framework. When we notice these distinct theoretical roles, we should realize that there is room for two distinct concepts of intrinsic value within a single moral framework: one that accords with some or all of the Moorean principles, and one that does not.     

Choice behavior in a discrete-trial concurrent VI-VR: A test of maximizing theories of matching

Rats were trained on a discrete-trial procedure in which one alternative (VR) was correlated with a constant probability of reinforcement while the other was correlated with a VI schedule which ran during the intertrial intervals and held the scheduled reinforcer until they were obtained by the next VI response. Relative reinforcement rate was varied in series of conditions in which the VR schedule was varied and in series in which the VI was varied. Choice behavior was described well by the generalized matching law, although moderate undermatching occurred for all subjects. Contrary to the predictions of molar maximizing (optimality) theories, there was no consistent bias in favor of the ratio alternative, and the sensitivity to reinforcement allocation was not systematically affected by whether the ratio or interval schedule was varied. The results were also contrary to momentary maximizing accounts, as there was no correspondence between the probability of a changeover to the VI behavior and the time since the last response to the VI alternative. Neither variety of maximizing theory appears to provide a general explanation of matching in concurrent schedules.