Large Costs, Small Benefits: Explaining Trade Dispute Outcomes

The United States frequently engages in negotiations with its trading partners over expanded market access for American firms. Although many of these negotiations involve markets worth millions or even billions of dollars, sometimes government officials bargain long and hard over issues that were never predicted to result in substantial benefits. For example, the United States held negotiations with Japan for more than 30 years over increased market access for American apples. These negotiations were ultimately carried to the highest levels of government, discussed at international conferences, and even ruled on by the World Trade Organization, yet estimates of the potential market for foreign apples never exceeded $15 million. Such protracted negotiations in this sector do not make sense from the perspective of expected utility theory but can be explained by prospect theory. Apple negotiations came to represent a spiral model for both the United States and Japan. As each side viewed its own losses as deepening over the course of negotiations, each became caught in a prospect theory spiral of actions and became willing to take even riskier actions in an attempt to recoup losses.     

日本的人类胚胎干细胞研究

干细胞研究的进展体现了人类智慧的一个胜利,但同时也对人类的生命提出了极大的挑战,因为这意味着无论是作为一个整体的社会还是个体,都将面临严肃的伦理、法律及社会问题.通过成人干细胞临床研究原则草案论纲,讨论日本的人类胚胎干细胞研究.     

Experimentally Detecting How Cultural Differences on Social Anxiety Measures Misrepresent Cultural Differences in Emotional Well-being

Previous research, statistically accounting for self-construal factors and thereby eliminating widely reported culture main effects in social anxiety scores between East Asians and European-Americans (Norasakkunkit and Kalick 2002 Culture, ethnicity, and emotional distress measures: The role of self-construal and self-enhancement. Journal of Cross-Cultural Psychology, 33(1), 56–70.) suggested that social anxiety measures penalize individuals for being low on independent self-construal; therefore, cultural differences in emotional distress according to social anxiety measures may possibly misrepresent cultural differences in emotional well-being. In the current experimental study, 127 Japanese and 126 American participants were either primed or not primed to access an independent mode of thought prior to filling out two commonly used measures of social anxiety and a measure of emotional well-being. Independent priming caused social anxiety scores to decrease. Yet, independent priming did not influence levels of self-reported emotional well-being. Furthermore, although the Japanese respondents were shown to be more distressed according to both of the standardized social anxiety measures, this finding was actually reversed with respect to self-reported emotional well-being. The evidence thus points to high scores on measurements of social anxiety being directly and causally linked to low levels of independence, while no link was found between independence and emotional well-being.

打麻将、吸烟、饮酒行为对震后灾区民众心理健康的影响

打麻将是四川地区普遍存在的社会消遣活动,其社会、心理功能一直颇受争议。本研究探讨了四川地震灾区民众打麻将、吸烟、饮酒的行为习惯和震后的行为变化,及其对抑郁、躯体化、睡眠问题等心理健康指标的影响。结果发现：1）有打麻将习惯的受访者远多于有吸烟或饮酒习惯者;有打麻将习惯的受访者的心理健康通过社会支持的完全中介作用得到改善,而吸烟、饮酒行为习惯对心理健康有消极影响。2）与震前相比,震后民众的打麻将、饮酒行为大多减少,吸烟行为有所增加,各种习惯行为增加的受访者心理健康和社会支持水平较低;社会支持对灾区民众打麻将、吸烟、饮酒行为增加与心理健康间的关系起完全或部分中介作用。总体而言,打麻将行为与吸烟、饮酒行为习惯有所不同,适度的麻将消遣对四川地震灾区的民众心理健康有积极的影响     

“P300” and memory: Individual differences in the von Restorff effect

Event-related brain potentials (ERPs) were elicited by words in a free recall paradigm that included a novel item. The P300 component of the ERP is elicited by novel, task-relevant events, and we tested the hypothesis that P300 is a manifestation of the cognitive processing invoked during “context updating.” If the degree to which current representations in working memory need revision is related to P300 amplitude, then the P300 elicited by a given item should be related to the ability to recall that item on a subsequent test. Forty lists were presented to 12 subjects in each of two sessions. The lists were 15 words long, and 1 word, in position 6 through 10, was “isolated” by changing its size. Most subjects recalled these isolated words more often than other words in the same positions (von Restorff effect), and these words also elicited larger P300s than other words. Analysis of variance on the component scores from a principal components analysis revealed that words recalled had a larger amplitude P300 (on initial presentation) than words not recalled. Striking individual differences emerged, and there were strong relationships between the von Restorff effect, overall recall performance, mnemonic strategies, and the association between components of the ERP and recall performance. The overall recall performance of subjects who reported simple (rote) mnemonic strategies was low, but they showed a high von Restorff effect. For these subjects the amplitude of the P300 elicited by words during initial presentation predicted later recall. In contrast, subjects who reported complex mnemonic strategies remembered a high percentage of words and did not show a von Restorff effect. For these subjects P300 did not predict later recall, although a later “slow wave” component of the ERP did. The initial response to isolated items was the same for all subjects (a large P300), and all subjects recognized the isolates faster than other words in a recognition test given at the end of each session. The subjects in whom P300 did not predict recall reported mnemonic strategies that involved organizing the material. These strategies continue long after the time period reflected by P300 (600 msec). Because they were so effective they may have overshadowed the relationship between P300 and recall, which is based on the initial encoding of an event. Our interpretations were further confirmed and clarified from data obtained in a final grand recall and in the recognition test.     

Interruption of phonological coding in conduction aphasia

A case study of conduction aphasia, investigating single word repetition, phonological coding, and short-term memory, is reported. Evidence from intact adults suggests that repetition can occur through either a lexical route or a direct auditory-articulatory link. For this conduction aphasic, E.A., the direct link was impaired, although the lexical route could be used to produce accurate single word repetition. Several experiments demonstrated a significant impairment in the generation and maintenance of an abstract phonological code. The consequences of a disruption of phonological coding on speech perception and on verbal short-term memory are discussed.     

Student characteristics and motivational and process factors in relation to styles of career development

In this study student background characteristics and certain personological characteristics, including motivations for schooling and types of learning strategies employed, are investigated in relation to affective and cognitive aspects of adolescent career development. A Career Development Inventory, Learning Process Questionnaire, Word Knowledge test and General Information Questionnaire (addressing demographic and career decision-making topics) were administered to national random samples of 14-year-old and grade 11 students. Canonical correlation analyses distinguished at least three styles of career development (possibly four), and associations with student characteristics suggested the motives and strategies that might plausibly enter into the various modes.     

Anticipation of reward omission as a cue for choice behavior

A within-subject partial reinforcement extinction effect was obtained in a conditional discriminative choice task. In choice acquisition, one group had learned a task in which one choice alternative was continuously reinforced (CRF) and the other alternative was partially reinforced (PRF). Most errors in the acquisition phase were the choosing of the CRF lever when the conditional stimulus signaled the PRF lever; in extinction this pattern of choice errors reversed. In extinction, most errors were choosing of the PRF lever when the conditional stimulus signaled the CRF lever. The predictions of frustration theory and sequential theory were compared with the choice data. The results were interpreted as consistent with the anticipatory frustration construct within an associative mediational theory.     

Existential measurement: A factor analytic study of some current psychometric instruments

The foray of quantification research into the arena of existentialism and ontology has given rise to several psychometric instruments pertinent to the area. Both exploratory and Confirmatory principal-factor analyses were used to study the relationships among 16 existential scales currently in use in the research literature. Participants were 133 individuals comprised of 74 females and 59 males with a median age of approximately 30.5 years. Approximately one half of the sample was in attendance at the University of Regina and Saskatchewan during the 1976–1977 fall term, while the remainder was drawn from the respective communities. Confirmatory factor analysis supported both the prediction of substantial condensation of existential scales and the presence of an avoidance of ontological confrontation factor. Exploratory factor analysis provided some support of the theory that the avoidance of existential confrontation is a central function of neurosis. Extracted factors were interpreted and examined with respect to implications for existential-ontological theory and research.     

The composite measure of the defense mechanism inventory

A reanalysis of previously published data suggests that the Defense Mechanism Inventory can be utilized to yield a composite measure of reaction to frustration by contrasting linearly the defenses of Turning-against-object and Projection against those of Principalization and Reversal-of-affect. Factor-analytic and correlational data support the exclusion of Turning-against-self from the composite measure. Studies of content validity are presented for the combination of the four defenses into one dimension. Patterns of interitem reliability are charted for the five defenses and the composite measure for both men and women. Internal consistency data are also presented for the standard scoring as well as for a modified method to explore the feasibility of simplifying and shortening the test-taking procedure.