数字加工任务影响时距知觉的数字效应

本研究采用复制时距和数字加工双任务,探讨数字大小影响时距知觉的机制。实验首先呈现不同时距的圆点,然后让被试按键复制圆点呈现的时距,与此同时,对屏幕上出现的数字进行命名(实验1)、奇偶数判断(实验2)、大小判断(实验3)。实验结果发现对数字进行奇偶数判断时,数字大小对时距知觉没有影响;进行数字命名和大小判断任务时,数字大小对时距知觉都产生了影响,并且时距不同,数字大小对时距知觉的影响也不同。该结果表明时距知觉的数字效应与数字加工任务和时距长短有关,呈现出动态变化的过程。     

时间知觉与估计的认知理论综述

本文回顾时间知觉与估计的实验研究 ,总结该领域的国内外研究结果 ,对该领域的各主要认知模型作了较全面的考察和评述 ,并进一步探讨了时间认知领域研究的今后发展 ,尤其是时间知觉与估计研究的脑电研究思路。     

Plasma Catecholamine and Performance Associations During Psychological Stress: Evidence for Peripheral Noradrenergic Involvement With an Attention-Demanding Task

The purpose of this investigation was to examine the associations between plasma catecholaminc (CA) response and selected performance measures during psychological stress. Nineteen men (between the ages of 35 and 50) performed a double-conflict (DC) task for 12 min. Self-reported distress resulting from the stress protocol was assessed using the Profile of Mood States and the Spielberger State-Trait Anxiety Inventory. Performance of the DC task was measured by total reaction time (TRT). Cognitive aftereffects were assessed by the time it took to complete three sets of anagrams administered immediately after the DC task. Plasma CA measures were taken at three intervals during the rest period and the DC task. The stress protocol resulted in increased self-reported tension, p ≤ 0.01; confusion, p ≤ 0.01; and anxiety, p ≤ 0.01; with reduced vigor, p less than or equal to 0.01. The men displayed improved TRT, p less than or equal to 0.01, during the DC task, and they had significantly extended performance time, p less than or equal to 0.01, on anagram Set 1 compared to Sets 2 and 3. Although both plasma norepinephrine (NE) and plasma epinephrine (E) increased, only E achieved statistical significance, p less than or equal to 0.05. The only significant correlation between plasma CA and performance occurred with NE and anagram Set 1, p less than or equal to 0.05. The findings arc discussed in terms of a postulated link between circulating NE and cognitive effects of stress.     

Speech Perception Within an Auditory Cognitive Science Framework

ABSTRACT— The complexities of the acoustic speech signal pose many significant challenges for listeners. Although perceiving speech begins with auditory processing, investigation of speech perception has progressed mostly independently of study of the auditory system. Nevertheless, a growing body of evidence demonstrates that cross-fertilization between the two areas of research can be productive. We briefly describe research bridging the study of general auditory processing and speech perception, showing that the latter is constrained and influenced by operating characteristics of the auditory system and that our understanding of the processes involved in speech perception is enhanced by study within a more general framework. The disconnect between the two areas of research has stunted the development of a truly interdisciplinary science, but there is an opportunity for great strides in understanding with the development of an integrated field of auditory cognitive science.     

Set as an Instance of a Real‐World Visual‐Cognitive Task

Complex problem solving is often an integration of perceptual processing and deliberate planning. But what balances these two processes, and how do novices differ from experts? We investigate the interplay between these two in the game of SET. This article investigates how people combine bottom‐up visual processes and top‐down planning to succeed in this game. Using combinatorial and mixed‐effect regression analysis of eye‐movement protocols and a cognitive model of a human player, we show that SET players deploy both bottom‐up and top‐down processes in parallel to accomplish the same task. The combination of competition and cooperation of both types of processes is a major factor of success in the game. Finally, we explore strategies players use during the game. Our findings suggest that within‐trial strategy shifts can occur without the need of explicit meta‐cognitive control, but rather implicitly as a result of evolving memory activations.     

数量加工单方向干扰时间知觉的认知与神经机制

近年来,数量加工对时间知觉的单方向干扰效应受到广泛关注,然而关于该效应的认知和神经机制的研究却缺乏深度的文献梳理和理论分析。本文从抽象数量、数字符号等认知加工如何干扰时间知觉的角度,系统总结了近期数量加工单方向影响时间知觉的研究进展;并在对相关文献加以梳理的基础上,详细分析了该效应可能的认知和神经机制,并提出若干未来研究的设想。     

阅读和场景知觉中认知与文化对眼动的影响(中文)

Research on eye movements during reading and scene perception is briefly reviewed. It is quite clear that cognitive variables influence how long readers look at words and where they look next. There are also clearly some differences in eye movements between Chinese and Western readers. However, for the most part it appears that there are more similarities than differences and that what differences do occur are due more to differences in the nature of the written orthography than due to cultural differences. There are also clearly cognitive influences on eye movements during scene viewing. Research from my lab is reviewed which challenges the view that culture influences eye movements during scene viewing. While we do not deny that there are cultural influences on cognition and thinking, it seems to be the case that cultural differences do not influence properties of the oculomotor system resulting in differences in where subjects look early in scenes.     

Third-Person Perception as an Impression Management Tactic

The current research aims at broadening the motivational explanations for the third-person perception (TPP) by documenting the role of impression management motives in this perception. In two experiments that were devised to explore this possibility, participants were asked to report in public or in private on their perceptions of how various advertisements affected them and others. In addition, their level of self-monitoring was measured, and they were divided into two categories—high and low. In line with the hypotheses, participants showed a larger TPP in public than in private. Moreover, while the public nature of the situation did not affect low self-monitors, high self-monitors reported a large TPP in public but no TPP at all in private. The article concludes with a discussion of the implications of the current findings for research on the causes and consequences of the TPP.     

Affect and Performance on Cognitive Task as a Function of Crowding and Noise1

Sixty undergraduate males participated in an experiment with a 2 × 3 factorial design involving two levels of density and three levels of noise to demonstrate effects of the independent variables (density, noise) on cognitive task performance and affect. As predicted, it was found that crowding and noise lead to deterioration of subject's performance on cognitively complex tasks but not on simple (cognitive) task. Also, density and noise generated a negative feeling in the subjects. Significant two-way interaction for complex task, showed variation in performance of Ss of high and low density under low and high noise conditions. In addition, crowded-condition subjects reported more dissatisfaction about their performance and evaluated the presence of the experimenter as significantly less pleasant than their noncrowded-condition counterparts.     

Background Television as an Inhibitor of Cognitive Processing

Proposed and tested is a causal process that could account for empirical relationships between television viewing and academic achievement. It is argued that television, when used as a secondary activity, interferes with performance on otherwise intellectually demanding tasks. Performance on seven different cognitive processing tests were examined for respondents in four television-viewing conditions and a no-TV control group. Dependent variables included measures of short-term memory, linguistic processing speed, reading comprehension, complex problem-solving abilities, and mental flexibility. Predictions based on four mechanisms were tested. Significant performance decrements in television conditions occurred for measures of reading comprehension, spatial problem solving, and cognitive flexibility. Results were most consistent with the idea that background television influences performance by causing cognitive processing capacity limits to be exceeded on difficult and complex tasks.     

知觉时长对恢复性环境的恢复性效果的影响

基于注意恢复理论探讨恢复性环境的即时恢复效果、知觉时间对恢复性环境的恢复性效果的影响、以及恢复性环境恢复效果的意识加工机制等问题。实验1对恢复性环境图片的恢复性效果进行评估,筛选恢复性环境的刺激材料;实验2基于前后测范式采用视觉搜索任务作为实验任务,以进一步验证图片的恢复性效果和实验任务的有效性;实验3采用实验组和对照组的实验范式选取三种不同知觉时长,以验证知觉时间对恢复性环境恢复性效果的影响。研究结果发现:呈现恢复性环境图片组成绩好于不呈现恢复性环境图片组;对恢复性环境图片的知觉时间越长恢复性效果越好。     

知觉组织影响时序知觉的认知机制:ERP研究的证据

以往研究显示,知觉组织影响时序知觉,采用ERP技术拟探讨知觉组织影响时序知觉的认知机制。采集23名被试完成同时判断任务的脑电数据。行为结果发现,知觉组织影响时序知觉,具体表现为知觉组织条件的同时判断频率显著高于非知觉组织条件。ERPs结果发现,在P1和P2成分上,知觉组织条件与非知觉组织条件引发的波幅没有显著差异; 而在N1成分上,知觉组织条件诱发的N1波幅显著大于非知觉组织条件。这表明,知觉组织对时序知觉的影响可能发生在视觉刺激加工的早期阶段,视觉刺激的知觉组织先于时序信息加工。     

Reduction in Memory Specificity Following an Approach/Avoidance Scrambled Sentences Task Relates to Cognitive Avoidant Coping

Overgeneral autobiographical memory (OGM) refers to the tendency to retrieve less specific personal memories. According to the functional avoidance hypothesis, OGM might act as a cognitive strategy to avoid emotionally distressing details of negative memories. In the present study, we investigated the effect of an experimentally induced avoidant state on memory specificity. We primed an avoidant state in half of the participants and an approaching state in the other half by means of a Scrambled Sentences Task (SST). Memory specificity was measured before and after priming. Trait cognitive avoidant coping was assessed prior to the experiment. Analyses indicated that higher trait avoidance was significantly associated with lower memory specificity after the SST and stronger reductions in memory specificity from pre- to post-SST, irrespective of the priming condition. The latter suggests that the SST triggered high avoiders’ avoidance schema in both conditions, possibly because it was experienced as a stressor.

     

Cognitive Lie Detection: Response Time and Consistency of Answers as Cues to Deception

Purpose  The purpose of this study was to test a new cognitive lie detection method, time restricted integrity confirmation (Tri-Con), which uses response time and inconsistencies across answers as cues to deception. Design/methodology/approach   Data were obtained from two samples of students enrolled in psychology classes (n = 96 for Experiment 1, n = 99 for Experiment 2). The experimental task required students to lie or tell the truth to questions probing biodata under time restriction. The foci of questions (such as Academics or Employment History) were chosen because of their relevance to participants’ lives. Findings  Tri-Con was able to distinguish between truth tellers and liars after controlling for individual differences. In one experiment, liar-truth teller classification accuracies reached 89%. Mean response times and answer consistency can be used to distinguish those who lie from those who tell the truth. Implications  Research on cognitive-based lie detectors, such as Tri-Con, hold the potential for developing reliable and valid methods of screening out employees likely to engage in misconduct and providing deceptive answers to screening questions. A cognitive lie detector would constitute a paradigm shift away from the polygraph, and could be used in tandem with integrity tests. Originality/value   This study was a preliminary test of a cognitive lie detection method based on a model of cognitive events (the Activation-Decision-Construction model) when people answer questions deceptively. It constitutes a step in translating laboratory-based cognitive research into applied technologies for the real world detection of lying, including lying that occurs during pre-employment screening. Received and reviewed by former editor, George Neuman.     

Conditional Discriminations by Preverbal Children in an Identity Matching-to-Sample Task

This study sought to develop methodology for assessing whether children aged 16-21 months could learn to match stimuli on the basis of physical identity in conditional discrimination procedures of the type routinely used in stimulus equivalence research with older participants. The study was conducted in a private room at a daycare center for children and toddlers. The child and the research sat together on the floor facing an apparatus with two windows. Stimuli to be discriminated were toys especially designed to attract the child's attention and maintain continued interest. On simple discrimination and discrimination reversal trials that were programmed in initial training, S+ and S- toys were displayed within the two windows. When the child touched the window containing the toy defined as S+ on a given trial, s/he was allowed to manipulate/play with that toy. Selections of the S- toy ended the trial without a play opportunity. On subsequent identity matching-to-sample trials, the child was first allowed to manipulate a sample toy. Then, S+ (matching) and S- (nonmatching) comparison toys were displayed within the windows, and the selection consequences were the same as on simple discrimination trials. The study provides evidence that preverbal children can master simple and conditional discrimination performances via such procedures, perhaps setting the stage for subsequent studies aimed at establishing procedural control of the discrimination baselines needed to assess the stimulus equivalence potential of children in this age range.     

Time,structure, and teaching as an adjunct

Contingent teaching has become the norm in most institutions. While the use of adjuncts and other non‐tenure track professors shows no sign of slowing down, the nature of contingent teaching is less known. This article examines how contingent teaching directly impacts the professor's teaching. My experience teaching religious studies courses from 2014 to the present has shown how contingent status affects significant issues such as the time and structure of teaching. Time is an essential component in teaching well. How the course is structured is equally important, or perhaps even more so, and has significant ramifications for a course. However, the nature of contingent labor impacts how time and structure is implemented in a course. This influences how I interact with the course material, the students, the department, and my ability to teach. See companion essays published in this issue of the journal by Adam Wirrig, Bradley Burroughs, Kyle Schenkewitz, and Charles Harrell.