Resistance to the influences of others: Limits to the formation of a collective memory through conversational remembering

People often form collective memories by sharing their memories with others. Warnings about the reliability of one conversational participant can limit the extent to which conversations or other forms of postevent information can influence subsequent memory. Although this attenuation is consistently found for prewarnings, there are substantial reasons to suspect that, by carefully manipulating both individual characteristics of the listener in a conversation and the dynamics of the postevent conversation, one can restrict the effect even prewarnings have on the influence a speaker might have on the memory of a listener. Indeed, in situations in which a speaker contributes substantially to a conversation and the quality of memory of a listener is poor, prewarnings have the paradoxical effect of increasing the influence of the speaker on a listener's memory. Warnings may not always limit the formation of a collective memory. Copyright © 2009 John Wiley & Sons, Ltd.     

Featural selective attention,exemplar representation,and the inverse base-rate effect

Selective attention plays a central role in theories of category learning and representation. In exemplar theory, selective attention has typically been formalized as operating uniformly across entire stimulus dimensions. Selective featural attention operating within dimensions has been recognized as a conceptual possibility, but relatively little research has focused on evaluating it. In the present research, we explored the usefulness of selective featural attention in the context of exemplar representation. We report the results of embedding the feature-to-category relations typically associated with the inverse base-rate effect—a classic and paradoxical category-learning result— perceptual category-learning task using a category structure with three multivalued feature dimensions. An exemplar model incorporating featural selective attention accurately accounted for the inverse base-rate effect that occurred but failed to do so with only dimensional attention.     

Examining patterns suggestive of acquisition during functional analyses: A consecutive controlled series of 116 cases

The functional analysis approach described by Iwata et al. (1982/1994) has been used widely to determine the variables evoking and maintaining challenging behavior. However, one potential concern with conducting functional analyses is that repeated exposure to contingencies may induce a novel functional relation. To examine the likelihood of these potential iatrogenic effects, we evaluated social test conditions of the functional analysis for 116 participants and searched for patterns of responding indicative of acquisition. Patterns suggestive of acquisition occurred in 13.70% of tangible reinforcement conditions; however, the prevalence was only slightly lower in the attention condition (8.75%). Much lower prevalence was observed for the escape condition (2.13%). When grouped by quotient score, a pattern of acquisition was just as likely to be observed in the attention condition as in the tangible condition. Additionally, patterns indicative of acquisition were no more likely to be observed with participants who emitted automatically reinforced challenging behavior.     

Effects of perceived mutual gaze and gender on face processing and recognition memory

Perceived gaze contact in seen faces may convey important social signals. We examined whether gaze perception affects face processing during two tasks: Online gender judgement, and later incidental recognition memory. Individual faces were presented with eyes directed either straight towards the viewer or away, while these faces were seen in either frontal or three-quarters view. Participants were slower to make gender judgements for faces with direct versus averted eye gaze, but this effect was particularly pronounced for faces with opposite gender to the observer, and seen in three-quarters view. During subsequent surprise recognition-memory testing, recognition was better for faces previously seen with direct than averted gaze, again especially for the opposite gender to the observer. The effect of direct gaze was stronger in both tasks when the head was seen in three-quarters rather than in frontal view, consistent with the greater salience of perceived eye contact for deviated faces. However, in the memory test, face recognition was also relatively enhanced for faces of opposite gender in front views when their gaze was averted rather than direct. Together, these results indicate that perceived eye contact can interact with facial processing during gender judgements and recognition memory, even when gaze direction is task-irrelevant, and particularly for faces of opposite gender to the observer (an influence which controls for stimulus factors when considering observers of both genders). These findings appear consistent with recent neuroimaging evidence that social facial cues can modulate visual processing in cortical regions involved in face processing and memory, presumably via interconnections with brain systems specialized for gaze perception and social monitoring.     

On Being Exposed to Superior Others: Consequences of Self-Threatening Upward Social Comparisons

Being inferior to someone else can be hurtful. But what exactly happens when we found ourselves in such situations? We first address why and when upward comparison can be self-threatening and later review the effects of such threatening social comparison. We argue that two main kinds of disturbances can ensue: affective disturbances and attentional disturbances. Second, three ways to deal with self-threatening social comparison are reviewed: proactive regulation, defensive regulation, and regulation by avoidance. For each of these disturbances and regulation modes, we review empirical findings and later discuss the impact of upward comparison on performance. We conclude by going back to the very need behind the need for a positive evaluation.     

Theory of mind: is training contagious?

In this study, preschool children were successfully trained in theory of mind tasks, namely false belief inference and appearance–reality distinction. Results show that both types of training had a direct effect, as measured by the improvement of performance on the FB and AR delayed post‐tests. Both types of training also had an indirect effect, as measured by transfer of the benefits of the training to the task that was not in the training. Finally, both types of training were effective even when the children were trained in a task they had already mastered.     

Phonological similarity in free and serial recall: The effect of increasing retention intervals

The phonological similarity effect (or acoustic confusion effect) consists of poor serial recall performance for lists composed of similar‐sounding words compared to lists of dissimilar‐sounding items. Building on the work of Nairne and Kelley (1999), the extent to which this classical verbal short‐term memory effect changes over the course of a retention interval was investigated. The impact of the phonological similarity on memory performance over time was compared in three paradigms: order reconstruction, serial recall, and free recall. Participants were presented with two blocks of 15 lists composed of five monosyllabic words, one block containing phonologically similar words and the other phonologically distinct words. Recall occurred either after 2, 8, or 24 seconds retention interval filled with a digit shadowing task. Our results confirmed and extended those of Nairne and Kelley. In order reconstruction and serial recall tasks, a classical phonological similarity effect (i.e., decrement in performance with similar lists) was observed for the 2‐s retention interval. This effect disappeared after a brief period of digit shadowing (i.e., 8‐s delay) and a beneficial effect of similarity was observed for the 24‐s retention interval. In the free recall task, the phonological similarity produced better performance whatever the delay between presentation and recall. Those results are discussed in the light of Nairne's (1990a) feature model and confirm the role of item‐specific and inter‐item processes in order reconstruction, serial recall, and free recall. L'effet de similarité phonologique se manifeste par une performance de rappel plus faible lorsque les listes sont composées de mots dont la sonorité est proche que lorsque les mots sont de sonorité éloignée. Sur la base de la recherche de Nairne et Kelley (1999), nous nous sommes intéressés à la manière dont évolue cet effet classique de mémoire à court terme verbale dans le temps, C'est‐à‐dire à L'issue d'intervalles de rétention de durées variables. L'impact de la similarité phonologique sur la performance mnésique a été évaluée sur la base de trois paradigmes, la reconstruction de L'ordre, le rappel sériel et le rappel libre. Les participants ont été soumis à deux blocs de 15 listes comportant 5 mots monosyllabiques, un bloc comprenant des mots similaires phonologiquement et un bloc comprenant des mots dissimilaires phonologiquement. Le rappel est demandé après un intervalle de rétention d'une durée de 2, 8 ou 24 secondes durant lequel une tâche de shadowing de chiffres est proposée. Nos résultats confirment et étendent ceux obtenus par Nairne et Kelley. Pour les tâches de reconstruction de L'ordre et de rappel sériel, un effet de similarité phonologique classique (i.e., chute des performances pour les listes similaires) est observé avec un intervalle de rétention de 2 secondes. Cet effet disparaît après une courte période consacrée au shadowing de chiffres (i.e., 8 secondes) et un effet bénéfique de la similarité est observé pour un intervalle de rétention de 24 secondes. En rappel libre, la similarité phonologique provoque une amélioration des performances quel que soit le délai entre présentation et rappel. Ces résultats sont discutés à la lumière du modèle des traits de Nairne (1990a). Ils confirment le rôle des traitements spécifiques à L'item et des traitements inter‐items lors de tâches telles que la reconstruction de L'ordre, le rappel sériel et libre. El efecto de la similitud fonológica (o efecto de confusión acústica) se manifiesta en fallas en el recuerdo de series para las listas compuestas por palabras que tienen sonidos similares en comparación con aquéllas que poseen elementos distintos. Con base en el trabajo de Nairne en Kelley (1999), se investigó la medida en la que este efecto clásico de memoria reciente cambia a lo largo del curso de un intervalo de retención. El impacto de la similitud fonológica sobre el desempeño de la memoria a lo largo del tiempo se comparó en tres paradigmas, reconstrucción del orden, recuerdo de series y recuerdo libre. Se presentó a los participantes dos bloques de 15 listas compuestas por 5 palabras monosilábicas, un bloque contenía palabras fonológicamente similares y, el otro, palabras fonológicamente distintas. El recuerdo ocurrió después de un intervalo de retención de 2, 8 ó 24 segundos lleno de una tarea digital de sombreado. Los resultados confirmaron y extendieron los de Nairne en Kelley. En las tareas de reconstrucción del orden y en la recuerdo de series, se observó un efecto clásico de similitud fonológica para el intervalo de retención de 2 segundos (es decir, disminución de la ejecución con listas similares). Este efecto desapareció después de un breve periodo de sombreado digital (es decir, un retraso de 8 segundos) y se observó un efecto benéfico de similitud para el intervalo de retención de 24 segundos. En la tarea de recuerdo libre, la similitud fonológica produjo mejor ejecución independientemente del retraso entre la presentación y el recuerdo. Tales resultados se discuten a la luz del modelo de Nairne (1990a) y confirman el papel que desempeñan los procesos de reactivo específico e interreactivo en la reconstrucción del orden, y en el recuerdo de series y libre.     

A quantitative review of overjustification effects in persons with intellectual and developmental disabilities

The overjustification hypothesis suggests that extrinsic rewards undermine intrinsic motivation. Extrinsic rewards are common in strengthening behavior in persons with intellectual and developmental disabilities; we examined overjustification effects in this context. A literature search yielded 65 data sets permitting comparison of responding during an initial no‐reinforcement phase to a subsequent no‐reinforcement phase, separated by a reinforcement phase. We used effect sizes to compare response levels in these two no‐reinforcement phases. Overall, the mean effect size did not differ from zero; levels in the second no‐reinforcement phase were equally likely to be higher or lower than in the first. However, in contrast to the overjustification hypothesis, levels were higher in the second no‐reinforcement phase when comparing the single no‐reinforcement sessions immediately before and after reinforcement. Outcomes consistent with the overjustification hypothesis were somewhat more likely when the target behavior occurred at relatively higher levels prior to reinforcement.