How eye movements affect unpleasant memories: support for a working-memory account

Eye movement desensitization and reprocessing can reduce ratings of the vividness and emotionality of unpleasant memories-hence it is commonly used to treat posttraumatic stress disorder. The present experiments compared three accounts of how eye movements produce these benefits. Participants rated unpleasant autobiographical memories before and after eye movements or an eyes stationary control condition. In Experiment 1, eye movements produced benefits only when memories were held in mind during the movements, and eye movements increased arousal, contrary to an investigatory-reflex account. In Experiment 2, horizontal and vertical eye movements produced equivalent benefits, contrary to an interhemispheric-communication account. In Experiment 3, two other distractor tasks (auditory shadowing, drawing) produced benefits that were negatively correlated with working-memory capacity. These findings support a working-memory account of the eye movement benefits in which the central executive is taxed when a person performs a distractor task while attempting to hold a memory in mind.     

Effects of Television Violence on Memory for Violent and Nonviolent Advertising

This study investigated the impact of television violence on memory for advertising, taking into account the possible role of viewer hostility arousal in this context. Experimental participants were exposed to advertising placed within a violent or a nonviolent film clip. One advertisement had 2 versions–violent and nonviolent–and was presented with 2 other nonviolent filler advertisements. Participants completed a mood questionnaire before and after being exposed to the television material, tested for memory for the embedded advertising and asked to rate the film clips and the advertisements using a set of evaluative scales. The nonviolent version of the target advertisement was less well remembered when placed in the violent film than in the nonviolent film, supporting Bushman and Bonacci (2002). In contrast, the violent version of the target advertisement was remembered much better than the nonviolent version when placed in the violent film sequence. Participants' hostility scores were higher only after watching the violent film, and associated with an impairment in the memory of the nonviolent advertisements, while enhancing the memory of the violent advertisement, thus providing some support for Bushman's (1998a) hostile-thought hypothesis.     

Cognitive psychology meets psychometric theory: on the relation between process models for decision making and latent variable models for individual differences

This article analyzes latent variable models from a cognitive psychology perspective. We start by discussing work by Tuerlinckx and De Boeck (2005), who proved that a diffusion model for 2-choice response processes entails a 2-parameter logistic item response theory (IRT) model for individual differences in the response data. Following this line of reasoning, we discuss the appropriateness of IRT for measuring abilities and bipolar traits, such as pro versus contra attitudes. Surprisingly, if a diffusion model underlies the response processes, IRT models are appropriate for bipolar traits but not for ability tests. A reconsideration of the concept of ability that is appropriate for such situations leads to a new item response model for accuracy and speed based on the idea that ability has a natural zero point. The model implies fundamentally new ways to think about guessing, response speed, and person fit in IRT. We discuss the relation between this model and existing models as well as implications for psychology and psychometrics.     

Memory for television advertisements as a function of advertisement–programme congruity

An experiment tested memory for a beer advertisement (placed either at the beginning or the end of the centre advertisement break) within four programme contexts featuring beer drinking either before and after, before or after the centre break, or not at all. The relationship between subjective audience evaluation of the programme and memory for advertisements was also investigated. The sample consisted of students (N = 79) aged 17 to 26 years. Brand recognition of the beer advertisement was significantly related to programme content, showing memory for the advertisement being enhanced when relevant programme material followed the break. Congruent material shown before the centre break had the reverse effect of impairing memory for the advertisement. Increased levels of programme involvement were found to be associated with improved recall and recognition of embedded advertisements but higher rated ‘happiness’ of the programme was associated with poorer memory for advertisement content. Copyright © 2002 John Wiley & Sons, Ltd.     

Children's memory for television advertising: effects of programme–advertisement congruency

The effects of the surrounding programme environment and level of involvement upon children's memory (year 6 primary school, mean age 11.1, SD = 0.4, 48 boys and 69 girls) for television advertisements was examined by manipulating the degree of congruency between the production genre of the programme and the advertisements embedded within it. In Experiment One (n = 56) the ad‐break comprised either all cartoons (n = 4) or all non‐cartoons (n = 4). In Experiment Two (n = 61) cartoon and non‐cartoon advertisements were equally represented in each ad‐break. After viewing, participants provided evaluative ratings of the programme and completed memory tests for advertisements, using prompted recall and brand‐recognition tasks. Memory performance overall was better for cartoon advertisements than for non‐cartoon advertisements, with the latter being poorly remembered when presented in the non‐cartoon programme. In Experiment Two, the programme had no effect on overall recall of advertising, but was related to brand recognition, which was better for advertisements placed in the cartoon programme. Free recall of non‐cartoon advertisements was best when placed in the cartoon programme, while free recall only of cartoon advertisements was best when placed in the non‐cartoon programme. The measures of audience involvement (programme ratings) did not show any significant correlation with memory for advertising. Copyright © 2002 John Wiley & Sons, Ltd.     

Syllogistic reasoning time: Disconfirmation disconfirmed

University of Saskatchewan, Saskatoon, Saskatchewan, Canada Models of deductive reasoning typically assume that reasoners dedicate more logical analysis to unbelievable conclusions than to believable ones (e.g., Evans, Newstead, Allen, & Pollard, 1994; Newstead, Pollard, Evans, & Allen, 1992). When the conclusion is believable, reasoners are assumed to accept it without much further thought, but when it is unbelievable, they are assumed to analyze the conclusion, presumably in an attempt to disconfirm it. This disconfirmation hypothesis leads to two predictions, which were tested in the present experiment: Reasoners should take longer to reason about problems leading to unbelievable conclusions, and reasoners should consider more models or representations of premise information for unbelievable conclusions than for believable ones. Neither prediction was supported by our data. Indeed, we observed that reasoners took significantly longer to reason about believable conclusions than about unbelievable ones and generated the same number of representations regardless of the believability of the premises. We propose a model, based on a modified version of verbal reasoning theory (Polk & Newell, 1995), that does not depend on the disconfirmation assumption.     

Drugs as instruments: a new framework for non-addictive psychoactive drug use

Most people who are regular consumers of psychoactive drugs are not drug addicts, nor will they ever become addicts. In neurobiological theories, non-addictive drug consumption is acknowledged only as a "necessary" prerequisite for addiction, but not as a stable and widespread behavior in its own right. This target article proposes a new neurobiological framework theory for non-addictive psychoactive drug consumption, introducing the concept of "drug instrumentalization." Psychoactive drugs are consumed for their effects on mental states. Humans are able to learn that mental states can be changed on purpose by drugs, in order to facilitate other, non-drug-related behaviors. We discuss specific "instrumentalization goals" and outline neurobiological mechanisms of how major classes of psychoactive drugs change mental states and serve non-drug-related behaviors. We argue that drug instrumentalization behavior may provide a functional adaptation to modern environments based on a historical selection for learning mechanisms that allow the dynamic modification of consummatory behavior. It is assumed that in order to effectively instrumentalize psychoactive drugs, the establishment of and retrieval from a drug memory is required. Here, we propose a new classification of different drug memory subtypes and discuss how they interact during drug instrumentalization learning and retrieval. Understanding the everyday utility and the learning mechanisms of non-addictive psychotropic drug use may help to prevent abuse and the transition to drug addiction in the future.