Dissociative effects of phonological vs. semantic associates on recognition memory in the Deese/Roediger-McDermott paradigm

Using a variation of the Deese/Roediger–McDermott paradigm in four experiments, we examined hit rate, false alarm rate, and memory discriminability (d′) for critical items (e.g., sleep) after their semantic associates (e.g., dream, rest, and awake), phonological associates (e.g., bleep, sheep, and cheap) or unrelated items were studied. Replicating previous research (e.g., Neely & Tse, 2007), d′ was lower for critical items than for yoked associates in semantic lists. However, d′ was higher for critical items than for yoked associates in phonological lists, even when the same critical items were used for these two list types. The memory discriminability of critical items was enhanced by phonological lists via a larger increase in their hit rates than in their false alarm rates, relative to the same critical items in lists of unrelated words. These findings (a) could not be fully accounted for by the activation-based theories proposed in the false memory literature, and (b) may suggest that the memory discriminabilities of semantic and phonological lists are modulated by two distinct activation mechanisms.     

Race effects in modifying cognitive impulsivity through self-instruction and modeling.

Seven-year-old children, identified as impulsive on the basis of MFF performance, were given a training program intended to modify their impulsivity through modeling and self-instruction. All the subjects were of comparable intelligence, social class, geographic residence, and were matched on sex. The 40 experimental subjects were paired on the basis of race. Half the pairs were trained by white models and half by black models. While the results do not provide unequivocal support for the effectiveness of such training, they do demonstrate selective changes in impulsivity based upon racial similarities of models and subjects. The construct validity of the MFF as a measure of reflection-impulsivity and the relevance of social class membership is discussed.     

民族接触减弱民族本质论：文化认同与文化相似性的中介作用

采用问卷法,以911名少数民族和汉族大学生为被试,探讨了民族接触减弱民族本质论及其机制问题。研究1检验了民族接触与民族本质论、民族交往态度的关系,结果表明,少数民族被试的民族接触与民族本质论存在显著负相关,汉族被试存在负相关但不显著;研究2检验了少数民族被试的本民族文化认同和与汉族文化的相似性感知在民族接触和民族本质论之间的中介作用。结果表明,文化认同和文化相似性完全中介了民族接触和民族本质论之间的负相关。文章认为民族接触可以通过增加民族之间文化相似性感知、降低内群体的文化认同而减弱民族本质论信念。最后讨论了本研究在理论和实践方面的贡献,以及存在的局限性。     

Exploring Temporal Progression of Events Using Eye Tracking

This study investigates the representation of the temporal progression of events by means of the causal change in a patient. Subjects were asked to verify the relationship between adjectives denoting a source and resulting feature of a patient. The features were presented either chronologically or inversely to a primed event context given by a verb (to cut: long–short vs. short–long). Effects on response time and on eye movement data show that the relationship between features presented chronologically is verified more easily than that between features presented inversely. Post hoc, however, we found that the effects of temporal order occurred only when subjects read the features more than once. Then, the relationship between the features is matched with the causal change implied by the event context (contextual strategy). When subjects read the features only once, subjects respond to the relationship between the features without taking into account the event context.     

The Best Friendships of Shy/Withdrawn Children: Prevalence, Stability, and Relationship Quality

The mutual best friendships of shy/withdrawn and control children were examined for prevalence, stability, best friend's characteristics, and friendship quality. Using peer nominations of shy/socially withdrawn and aggressive behaviors, two groups of children were identified from a normative sample of fifth-grade children: shy/withdrawn (n = 169) and control (nonaggressive/nonwithdrawn; n = 163). Friendship nominations, teacher reports, and friendship quality data were gathered. Results revealed that shy/withdrawn children were as likely as control children to have mutual stable best friendships. Withdrawn children's friends were more withdrawn and victimized than were the control children's best friends; further, similarities in social withdrawal and peer victimization were revealed for withdrawn children and their friends. Withdrawn children and their friends reported lower friendship quality than did control children. Results highlight the importance of both quantitative and qualitative measures of friendship when considering relationships as risk and/or protective factors.     

The inversion effect reveals species differences in face processing

Face recognition is a complex skill that requires the integration of facial features across the whole face, e.g., holistic processing. It is unclear whether, and to what extent, other species process faces in a manner that is similar to humans. Previous studies on the inversion effect, a marker of holistic processing, in nonhuman primates have revealed mixed results in part because many studies have failed to include alternative image categories necessary to understand whether the effects are truly face-specific. The present study re-examined the inversion effect in rhesus monkeys and chimpanzees using comparable testing methods and a variety of high quality stimuli including faces and nonfaces. The data support an inversion effect in chimpanzees only for conspecifics' faces (expert category), suggesting face-specific holistic processing similar to humans. Rhesus monkeys showed inversion effects for conspecifics, but also for heterospecifics' faces (chimpanzees), and nonfaces images (houses), supporting important species differences in this simple test of holistic face processing.     

Judging the 'passability' of dynamic gaps in a virtual rugby environment

Affordances have recently been proposed as a guiding principle in perception–action research in sport (Fajen, Riley, & Turvey, 2009). In the present study, perception of the ’passability’ affordance of a gap between two approaching defenders in rugby is explored. A simplified rugby gap closure scenario was created using immersive, interactive virtual reality technology where 14 novice participants (attacker) judged the passability of the gap between two virtual defenders via a perceptual judgment (button press) task. The scenario was modeled according to tau theory (Lee, 1976) and a psychophysical function was fitted to the response data. Results revealed that a tau-based informational quantity could account for 82% of the variance in the data. Findings suggest that the passability affordance in this case, is defined by this variable and participants were able to use it in order to inform prospective judgments as to passability. These findings contribute to our understanding of affordances and how they may be defined in this particular sporting scenario; however, some limitations regarding methodology, such as decoupling perception and action are also acknowledged.     

Flashbulb memories of the Paris attacks

Flashbulb memories are vivid autobiographical memories of the circumstances where an individual first learns about emotionally significant public events. Our paper assesses whether these memories were triggered by the attacks of Friday 13 November 2015 in Paris. Two hundred and ninety‐one participants answered a web‐based questionnaire that assessed their memory of the circumstances in which they first learned of the attacks. The questionnaire also assessed vividness, rehearsal, emotion, surprise and novelty. The results showed substantial and vivid recall of the context in which the participants first learned of the event. This recall was associated with fair rehearsal, negative emotional valence, surprise, and novelty. Regression analysis showed that the flashbulb recall was predicted by negative emotion. Negative emotion seems to play a key role in the formation of flashbulb memories, at least those associated with the Paris attacks.     

Dimensions of stuttering and relationship to psychopathology

This article reports two studies. The first attempted to define stable dimensions within the Stuttering Severity (SS) scale. A factor analysis of correlations among its 64 items defined four factor-based subscales, and three additional subscales were developed rationally. Relationships among these seven subscales suggested the existence of two major dimensions. The second study investigated the relationship of the seven subscales to psychopathology. Correlations were obtained among the subscales and MMPI scales for 69 subjects, and were subjected to a second factor analysis. The MMPI scales and the SS subscales clearly loaded on separate factors, indicating little relationship between dimensions of stuttering and psychopathology as defined by MMPI scores. The second analysis also supported the previous identification of two general dimensions for stuttering. Items were selected for two final scales to represent these dimensions, labeled behavior (22 items) and sensitivity (20 items). Norms were developed for them and also for the full 64-item SS scale.