Transfer and the organization of Perceptual-Motor space

Summary Three experiments are reported involving transfer of effects of different types of visual distortion: lateral displacement, linear extent, and visual rotation. Transfer between different body parts and between different dimensions of space occur but to varying degrees. These are interpreted in terms of their implications for understanding the organization of perceptual and perceptual-motor space.This research was supported by the Center for Research in Human Learning of the University of Minnesota, and by grants 1-K3-HD 12,396, HD 03082 to the University of Minnesota. The authors are indebted to Dr. Albert Yonas for helpful discussions of the results.     

Conditioned suppression of bar-pressing behavior by stimuli associated with drugs

Ten naive male albino rats were trained to press a bar under a variable-interval 30-sec schedule with water as the reinforcer in two experiments. This behavior was disrupted by chlorpromazine in Experiment I (two rats) and by lysergic acid diethylamide (LSD) in both Experiment I (two rats) and Experiment II (six rats). The administration of the drug was paired with an originally neutral white light. After several pairings with either drug, the light also depressed behavior. When the light was no longer paired with drug, the depression effect extinguished much faster than is usually observed in conditioned suppression studies.     

Binocular disparity as a discriminable stimulus parameter for young infants

The ability of 8-week-old infants to discriminate between projected stereograms with and without retinal disparity was tested with an habituation-dishabituation paradigm. Infants in two experimental groups received six trials with either the disparity or the nondisparity stimulus and then were given two trials with the other display. Infants in two control groups viewed the same stimulus, either disparity or nondisparity, on all eight trials. There was a suggestion of some response decrement over time in both cardiac deceleration and sucking suppression, although this effect was not significant. However, significant increment was obtained on the dishabituation trials for heart rate in the group that was shifted from the nondisparity to the disparity stimulus. These results were interpreted as indicating that the infants could discriminate between stimuli when the only difference between them was binocular disparity.     

Immigrant students’ educational trajectories: The influence of cultural identity and stereotype threat

Research has shown that stereotype threat can inhibit immigrant students to unlock their full potential. Individual differences in cultural identity could be associated with immigrants’ stereotype vulnerability. This longitudinal study (n = 516) investigates the influence of recurring experiences of stereotype threat at school, and how adolescent immigrants’ cultural identity and stereotype vulnerability affect their educational achievement. The results show a stronger decline of immigrants’ (vs. non-immigrants’) GPA, domain identification, and sense of academic belonging, as well as higher dropout rates. Higher stereotype vulnerability predicted a stronger decline in GPA, and lower levels of academic belonging. Stronger ethnic identity was related to higher stereotype vulnerability. An experimental belonging treatment failed to improve students’ educational achievement. This research combines stereotype threat and acculturation research within the educational context.     

The Influence of Paratext on Narrative Persuasion: Fact,Fiction, or Fake?

The present research examined the role of personality factors and paratextual information about the reliability of a story on its persuasiveness. Study 1 (N = 135) was focused on recipients' explicit expectations about the trustworthiness/usefulness and the immersiveness/entertainment value of stories introduced as nonfiction, fiction, or fake. Study 2 (experimental, N = 186) demonstrated that a story was persuasive in all three paratext conditions (nonfiction, fiction, or fake versus belief‐unrelated control story) and that its influence increased with the recipients' need for affect. Participants' need for cognition increased the difference in persuasiveness of a nonfictional versus a fake story. Additional mediation analyses suggest that fiction is more persuasive than fake because readers of fiction get more deeply transported into the story world.     

Anti‐Immigrant Propaganda by Radical Right Parties and the Intellectual Performance of Adolescents

In recent years radical right political parties have become a substantial electoral force in many countries around the world. Based on the vision of a mono‐ethnic state, anti‐immigration is these parties' core message. Connecting research on discrimination, social exclusion, and social identity threat, it was assumed that this anti‐immigrant propaganda undermines the intellectual performance of immigrant adolescents. In an experiment conducted at Austrian schools, the intelligence test performance of adolescents with an immigration background decreased after they were exposed to radical right election posters whereas ethnic majority adolescents remained unaffected. The results further suggest that individuals with a strong ethnic minority identity are less vulnerable to the detrimental impact of the radical right propaganda.     

Persuasive Effects of Fictional Narratives Increase Over Time

Fact-related information contained in fictional narratives may induce substantial changes in readers' real-world beliefs. Current models of persuasion through fiction assume that these effects occur because readers are psychologically transported into the fictional world of the narrative. Contrary to general dual-process models of persuasion, models of persuasion through fiction also imply that persuasive effects of fictional narratives are persistent and even increase over time (absolute sleeper effect). In an experiment designed to test this prediction, 81 participants read either a fictional story that contained true as well as false assertions about real-world topics or a control story. There were large short-term persuasive effects of false information, and these effects were even larger for a group with a 2-week assessment delay. Belief certainty was weakened immediately after reading but returned to baseline level after 2 weeks, indicating that beliefs acquired by reading fictional narratives are integrated into real-world knowledge.