两种自我保护机制：记忆忽视和自我免疫

当自我概念的稳定性受到威胁时,人们有时会采取自我保护手段来加以应对。在诸多自我保护方式中,记忆忽视加工是指个体在接触具威胁性的信息时进行选择性记忆,自然地忽视此类信息而不让其进入精加工,以消除该信息对自我概念的伤害;自我免疫加工是指个体通过对具威胁性信息的适宜操作界定来强调自己的优势能力,并重新评估自己的弱点,从而策略性地实现自我概念的稳定。文章从两种加工的认知机制角度来介绍和评述该领域的研究概况、研究方法与研究展望,借以引起对自我保护机制研究新进展的关注     

Neural correlates of visuospatial consciousness in 3D default space: Insights from contralateral neglect syndrome

One of the most compelling questions still unanswered in neuroscience is how consciousness arises. In this article, we examine visual processing, the parietal lobe, and contralateral neglect syndrome as a window into consciousness and how the brain functions as the mind and we introduce a mechanism for the processing of visual information and its role in consciousness. We propose that consciousness arises from integration of information from throughout the body and brain by the thalamus and that the thalamus reimages visual and other sensory information from throughout the cortex in a default three-dimensional space in the mind. We further suggest that the thalamus generates a dynamic default three-dimensional space by integrating processed information from corticothalamic feedback loops, creating an infrastructure that may form the basis of our consciousness. Further experimental evidence is needed to examine and support this hypothesis, the role of the thalamus, and to further elucidate the mechanism of consciousness.     

Evaluating performance in continuous experiments with feedback to subjects

Consider an experiment in which a subject guesses repeatedly at a randomly chosen target on a continuum. To guarantee a positive probability of success, the continuum is partitioned into a finite but large number of segments. The subject is given directional feedback. General guessing strategies are characterized, and an optimal strategy is identified. The hypothesis that the subject's performance can be explained by chance alone is of interest in such experiments. A test is developed based on comparing the subject's performance to expected performance using the optimal strategy. A skill-scoring procedure is developed for assessing a subject's performance in light of the strategy used, and a test based on skill-scoring is advanced.Research by the first author is supported in part by the Air Force Office of Scientific Research under grant AFOSR 77-3180.The authors wish to thank the referees for remarks that led to improvements in both content and clarity.     

The delay-reduction hypothesis of conditioned reinforcement and punishment: Observing behavior

Pigeons responded in an observing-response procedure in which three fixed-interval components alternated. Pecking one response key produced food reinforcement according to a mixed schedule. Pecking the second (observing) key occasionally replaced the mixed-schedule stimulus with the stimulus correlated with the fixed-interval component then in effect. In Experiment 1, observing was best maintained by stimuli correlated with a reduction in mean time to reinforcement. That finding was consistent with the conditioned-reinforcement hypothesis of observing behavior. However, low rates of observing were also maintained by stimuli not representing delay reduction. Experiment 2 assessed the role of sensory reinforcement. It showed that response rate was higher when maintained by stimuli uncorrelated with reinforcement delay than when the stimuli were correlated with a delay increase. This latter result supports a symmetrical version of the conditioned-reinforcement hypothesis that requires suppression by stimuli correlated with an increase in time to reinforcement. The results were inconsistent with hypotheses stressing the reinforcing potency of uncertainty reduction.     

The excitatory state in the triangular constant method

The Triangular Constant Method was designed for the measurement of discriminability between sensory stimuli. Its original model assumes a steady excitatory detection state. The purpose of this paper is to elaborate on the consequences of assuming a variable excitatory state and to formulate the concomitant model.     

Child victims: Searching for opportunities to break the cycle of violence

In 1986 I began research to address the relationship between early child abuse and neglect and later deliquent and violent criminal behavior using a prospective cohort design. The relationship is not inevitable, suggesting an opportunity for long-range violence prevention through appropriate early intervention. Here, I briefly describe how childhood victimization and violent criminal behavior are related and illustrate a number of promising strategies and opportunities to intervene. Finally, I offer five principles to guide interventions: (1) the earlier the intervention, the better; (2) don't neglect neglected children; (3) one size does not fit all; (4) surveillance—a double-edged sword; and (5) accessibility to resources. Rather than focusing on responses to child abuse or neglect in court proceedings that “treat” offenders, primary prevention efforts should target childhood victims to reduce their risk of becoming offenders in the future.     

Odor Semantics and Visual Cues: What We Smell Impacts Where We Look,What We Remember,and What We Want to Buy

The current research uses eye‐tracking technology in a consumer context to explore the interactive effects of olfactory and visual cues on consumers' eye gaze patterns. We manipulate the semantic correspondence between pictorial objects depicted in print advertisements and odors smelled (or not) while looking at the ads. The results indicate that smelling a scent that shares learned semantic associations with an object in the advertisement diverts consumers' eye gazes to the semantically related object in the ad, with positive downstream effects on advertising recall and purchase intent. This is the first study we are aware of demonstrating multisensory integration of odors and pictures on consumer eye gaze patterns with clear implications for consumer choice. Copyright © 2015 John Wiley & Sons, Ltd.     

Maternal Personality and Distress as Predictors of Child Neglect

Previous studies suggest that maternal personality problems predict child neglect. However, these studies have not distinguished between the common and unique contributions of various maternal personality dimensions, nor have they compared the contribution of maternal personality with maternal emotional distress. The current study addresses these issues using data collected by James Gaudin and distributed by the National Data Archive on Child Abuse and Neglect at Cornell University. Information was extracted on 94 neglectful and 101 comparison mothers. Logistic regression analyses revealed that a composite score reflecting maternal empathic capacity inversely predicted child neglect, whereas maternal depressive symptoms and loneliness did not. Results are discussed in terms of the importance of distinguishing between common and unique contributions of maternal personality dimensions to clinical and social outcomes and in terms of the relative contribution of maternal personality and emotional distress to child neglect.     

Child Maltreatment,Family Characteristics and Adult Adjustment

Abstract

Two alternate processes that may explain the relationship between child maltreatment, childhood family characteristics and adult adjustment (mediation and moderation) were tested using retrospective data from a community sample (N= 175). The levels of five different types of child maltreatment did not mediate the relationship between childhood family variables and adult adjustment. In contrast, family background played a mediating role in the relationship between mal-treatment and adjustment. Evidence of moderation was found in the interactions between different maltreatment types in predicting adjustment. Partial support was found for the moderating influence of family factors on the relationship of maltreatment to adjustment.     

The sensory‐cognition association in adulthood: Different magnitudes for processing speed,inhibition, episodic memory,and false memory?

One hundred and forty-six participants (age range = 20-80) completed a battery of tests designed to measure visual acuity, processing speed, inhibition, episodic memory and false memory. The relations between visual acuity and general cognitive ability, as well as between visual acuity and the indicators of this construct, were evaluated with structural equation modeling. The measurement model confirmed that the indicators of the individual cognitive abilities could be grouped into a general cognitive functioning factor. However, the relation between episodic and false memory was not completely explained by the shared association with this general factor. Furthermore, visual acuity predicted approximately half of the age-related variance in the general cognition factor. Also, the proportion of age-related variance shared with vision was highest in inhibition and lowest in false memory. The results are discussed in the light of common cause accounts of cognitive aging.