编码和检索阶段的异质情境流畅性对再认的影响

研究采用经典的R/K范式，通过两个实验分别探讨编码阶段和检索阶段的异质情境流畅性对再认的影响。实验1为2（异质情境：高流畅性预期情境和低流畅性预期情境）×2（测试词类型：目标词和分心词）的混合实验设计，异质情境发生在编码阶段；实验2与实验1设计相同，不同之处在于异质情境发生在检索阶段。结果发现：异质情境发生在检索阶段时只对K反应产生影响，目标词在高流畅性情境中比低流畅性情境中的K反应率更高，而分心词在低流畅性情境中比高流畅性情境中的K反应率更高。研究表明，检索阶段的异质情境流畅性只影响熟悉性再认，支持双系统加工理论。     

X good things in life: Processing fluency effects in the “Three good things in life” exercise

The present study examined whether difficulty of recollection may influence the effectiveness of the “Three good things in life” exercise that has previously been shown to increase happiness. Participants were randomly assigned to write 1–10 good things that happened to them during the day in the course of two weeks. We measured life satisfaction, positive and negative affect before the exercise and three times after the exercise. We found no effect of the number of good things participants wrote each day. Life satisfaction and positive affect of participants did not increase after the two weeks of the exercise, but we found a reduction in negative affect. We further investigated various aspects of the exercise in exploratory analyses.     

Gesture Helps,Only If You Need It: Inhibiting Gesture Reduces Tip-of-the-Tongue Resolution for Those With Weak Short-Term Memory

People frequently gesture when a word is on the tip of their tongue (TOT), yet research is mixed as to whether and why gesture aids lexical retrieval. We tested three accounts: the lexical retrieval hypothesis, which predicts that semantically related gestures facilitate successful lexical retrieval; the cognitive load account, which predicts that matching gestures facilitate lexical retrieval only when retrieval is hard, as in the case of a TOT; and the motor movement account, which predicts that any motor movements should support lexical retrieval. In Experiment 1 (a between-subjects study; N = 90), gesture inhibition, but not neck inhibition, affected TOT resolution but not overall lexical retrieval; participants in the gesture-inhibited condition resolved fewer TOTs than participants who were allowed to gesture. When participants could gesture, they produced more representational gestures during resolved than unresolved TOTs, a pattern not observed for meaningless motor movements (e.g., beats). However, the effect of gesture inhibition on TOT resolution was not uniform; some participants resolved many TOTs, while others struggled. In Experiment 2 (a within-subjects study; N = 34), the effect of gesture inhibition was traced to individual differences in verbal, not spatial short-term memory (STM) span; those with weaker verbal STM resolved fewer TOTs when unable to gesture. This relationship between verbal STM and TOT resolution was not observed when participants were allowed to gesture. Taken together, these results fit the cognitive load account; when lexical retrieval is hard, gesture effectively reduces the cognitive load of TOT resolution for those who find the task especially taxing.     

Perceptual fluency effects in judgments of creativity and beauty: creative objects are perceived fluently yet they are visually complex

ABSTRACT

Perceptual fluency typically has a positive influence on aesthetic evaluations of beauty, but few studies have examined its influence on creativity evaluations. Creativity has two facets, originality and quality. If creativity judgments involve estimating product originality, such judgments may be associated with perceptual disfluency, while product quality may be associated with perceptual fluency. We examined the relationship between perceptual fluency and judgments of creativity and beauty across seven experiments. Creativity judgments were affected by most perceptual fluencysources. We observed a highly-fluent-is-beautiful-and-creative relation when testing repeated exposure and figure-ground contrast. Prototypicality displayed a high-fluency–is-beautiful relation, with creativity judgments unaffected. Visual complexity displayed a consistent disfluent-is-creative effect, with mixed results for beauty. For creativity (but not beauty) evaluations, increased saliency of visual complexity led to discounting fluent-is-creative effects, supporting the hypothesis that there are at least two fluency pathways to creativity judgments that take both originality and quality into account.