Efficiency of visual selection in duplex and conjunction conditions in partial report

Factors that determine the efficiency of visual selection were investigated in two precued partial-report experiments. There were four selection conditions: acolor condition (e.g., selecting purple letters among blue letters), aclass condition (e.g., selecting letters among digits), aduplex condition (e.g., selecting purple letters among blue digits; that is, the targets differed from the distractors both in color and in alphanumeric class), and aconjunction condition (e.g., selecting purple letters among blue letters and purple digits; that is, the targets differed from the distractors either in color or in alphanumeric class). The efficiency of visual selection was highest in the duplex condition and lowest in the conjunction condition. Thedifference in performance across the different selection conditions within subjects was accounted for by variation in the value of a single parameter of the fixed-capacity independent race model (FIRM) proposed by Shibuya and Bundesen (1988), which assumes independent parallel processing, limitations in both processing capacity and storage capacity, and time-invariant selectivity. By assuming that the factors that determine the efficiency of selection in the color and class conditions also underlie the efficiency of selection in the duplex and conjunction conditions, an extension of FIRM, FIRM⁺, accounted for therelationship with respect to efficiency of selection among the different conditions.     

Repeated short presentations of morphed facial expressions change recognition and evaluation of facial expressions

This study investigated whether sensitivity to and evaluation of facial expressions varied with repeated exposure to non-prototypical facial expressions for a short presentation time. A morphed facial expression was presented for 500 ms repeatedly, and participants were required to indicate whether each facial expression was happy or angry. We manipulated the distribution of presentations of the morphed facial expressions for each facial stimulus. Some of the individuals depicted in the facial stimuli expressed anger frequently (i.e., anger-prone individuals), while the others expressed happiness frequently (i.e., happiness-prone individuals). After being exposed to the faces of anger-prone individuals, the participants became less sensitive to those individuals’ angry faces. Further, after being exposed to the faces of happiness-prone individuals, the participants became less sensitive to those individuals’ happy faces. We also found a relative increase in the social desirability of happiness-prone individuals after exposure to the facial stimuli.     

A Taste for Justice: Unpacking Identity Politics in a Nascent Democracy

This article examines attention to justice cues in the novel context of the nascent democracy of Tanzania. Using secondary national survey data, we illustrate Tanzanian citizens' attention to justice cues. We then test two competing hypotheses about the impact of religious identity on attention to justice cues. The first hypothesized model, based on System Justification Theory, predicts that subordinate group members (Muslims) will stay more loyal than dominant group members (Christians) to their government due to a decreased attention to justice cues. The second hypothesized model, based on the relational model of procedural justice, predicts that subordinate group members (Muslims) will dissent more than dominant group members (Christians) from their government due to an increased attention to justice cues. Multiple regression and mediational analyses indicate support for the procedural justice framework, with trust in the dominant political party mediating the relationship between process satisfaction and party identification. Implications for political and psychological theorizing about democratic processes will be discussed.     

Using an Individual Differences Approach to Examine Two Distinct Types of Suggestibility Effects

Two studies were conducted to examine relations between suggestibility effects studied in two commonly used research paradigms and a group of individual difference factors that have been theoretically linked to eyewitness suggestibility. In Study 1, we examined relations between the immediate acceptance of misinformation as measured by errors on misleading questions and individual differences in conformity, agreeableness, imagery ability, and memory. As predicted, the immediate acceptance of misinformation was associated with conformity but was not related to imagery ability. In Study 2, we examined relations between delayed retrieval errors produced during a classic misinformation paradigm and the same set of individual difference factors. Consistent with our predictions, delayed misinformation retrieval errors were related to imagery ability but were not related to conformity or agreeableness. Taken together, this predicted pattern of results across the two studies provides some preliminary evidence for an emerging distinction between these two types of suggestibility effects. Underlying theoretical, methodological, and practical issues related to the assessment of suggestibility effects are discussed. Copyright © 2012 John Wiley & Sons, Ltd.     

The Mediating Effects of Benefit Finding on the Relationship Between the Identity Centrality of Negative Stressful Events and Identity Achievement

Which types of benefit finding in negative events central to identity lead to higher identity achievement? This study examined the relationships between the identity centrality of negative events, benefit finding, and identity achievement, with consideration of differences between benefit-finding domains. Participants included 245 undergraduates, who recalled a previous negative event and completed the Identity Scale, Centrality of Event Scale, and items regarding benefit finding. Path analysis showed that benefit finding regarding personal growth consistently correlated with identity achievement, while the effects of recognizing warmth in others were unstable depending on event category. The findings demonstrated the role of benefit finding regarding personal growth in promoting identity achievement and buffering the original adverse impact of negative events on identity.     

There’s no ball without noise: cats’ prediction of an object from noise

We used an expectancy violation procedure to ask whether cats could use a causal rule to infer the presence of an unseen object on hearing the noise it made inside a container and predict its appearance when the container was turned over. We presented cats with either an object dropping out of an opaque container or no object dropping out (turning-over phase) after producing either a rattling sound by shaking the container with the object inside, or no sound (shaking phase). The cats were then allowed to freely explore the experimental environment (exploration phase). The relation between the sound and the object matched with physical laws in half of the trials (congruent condition) and mismatched in the other half (incongruent condition). Inferring the presence of an unseen object from the noise was predicted to result in longer looking time in the incongruent condition. The prediction was supported by the cats’ behavior during the turning-over phase. The results suggest that cats used a causal-logical understanding of auditory stimuli to predict the appearance of invisible objects. The ecology of cats’ natural hunting style may favor the ability for inference on the basis of sounds.