Male alcohol‐related aggression as a function of type of drink

The present study tested the so‐called type‐of‐drink effect on aggression, that is, the idea that moderate acute alcohol intoxication elicits more aggression when the alcohol is drunk in the form of spirits than in the form of beer or wine. A computerized version of the Taylor “aggression machine” was used. Spirits‐drinking subjects drank 1.0 ml of 100% alcohol per kg body weight. To compensate for the lower alcohol concentration, beer‐ and wine‐drinking subjects drank 20% more. No significant differences were found between drinkers of different beverages in terms of blood alcohol levels. Results indicated that spirits elicited more direct physical aggression than either beer or wine. Three different possible explanations for this finding were discussed. Aggr. Behav. 25:401–408, 1999. © 1999 Wiley‐Liss, Inc.     

Elderhood: Aging's new frontier

Drawing on folk wisdom and the social sciences, the surge in older adulthood is re‐framed as a new frontier of individual and societal opportunity.     

Expertise in Deception Detection Involves Actively Prompting Diagnostic Information Rather Than Passive Behavioral Observation

In a proof‐of‐concept study, an expert obtained 100% deception‐detection accuracy over 33 interviews. Tapes of the interactions were shown to N = 136 students who obtained 79.1% accuracy (Mdn = 83.3%, mode = 100%). The findings were replicated in a second experiment with 5 different experts who collectively conducted 89 interviews. The new experts were 97.8% accurate in cheating detection and 95.5% accurate at detecting who cheated. A sample of N = 34 students watched a random sample of 36 expert interviews and obtained 93.6% accuracy. The data suggest that experts can accurately distinguish truths from lies when they are allowed to actively question a potential liar, and nonexperts can obtain high accuracy when viewing expertly questioned senders.     

关于理论的访谈

能否将结构分析建构为理论?或者那只是一个体系或机械结构的集合,由我们按照文本的意向加以应用?     

Walking in an environment of moving ground texture

The visual control of global body movements has mainly been studied in terms of the maintenance of balance. The present experiment examined the effect of moving visual surroundings on the speed of locomotion. A virtually boundless optical environment was generated by the projection of a dotted texture on the ground that was reflected on large vertical mirrors fixed along the walls of the room. Subjects' head velocity was recorded over a walking path of about 10 m along the projection surface. In the experimental sessions, the texture was animated and moved at different speeds in the same direction as the subject or in the opposite direction. In the control condition, the projected texture remained motionless and therefore appeared to pass by at the subjects' walking speed. The subjects' task was to maintain a constant walking speed as far as possible over the different conditions. Changes in walking speed give indications of how the processing of optical flow modulates locomotor activity.