Laterality differences and practice effects under central backward masking conditions

Two experiments were conducted to examine laterality differences and practice effects under various central backward masking conditions. Critical stimulus onset asynchrony (SOA) was determined for subjects on 3 consecutive days using single letters as target stimuli (TS) and a pattern masking stimulus (MS). There was a right visual field (RVF) advantage on Day 1 but no difference between the visual fields on following days. The decline in the RVF advantage appeared to be dependent upon prior experience with laterally located letters, to be independent of initial experience with a particular set of letters, and to be more pronounced for females than for males. In addition, large improvements in performance were found, particularly between the first and second testing sessions. These practice effects were discussed in terms of the possible development of strategies for enhancing TS features or attenuating MS features.     

Identity,Perceived Religious Discrimination,and Psychological Well‐Being in Muslim Immigrant Women

The study investigated perceived religious discrimination and three facets of Muslim identity (psychological, behavioural, and visible) as predictors of psychological well‐being (life satisfaction and psychological symptoms) of 153 Muslim women in New Zealand. The results indicated that although visibility (wearing hijab) was associated with greater perceived discrimination, it predicted positive psychological outcomes. Analysis further revealed that the psychological (pride, belongingness, and centrality) and behavioural (engaging in Islamic practices) facets of Muslim identity moderated the relationship between perceived religious discrimination and well‐being. A strong psychological affiliation with Islam exacerbated the negative relationship between perceived religious discrimination and well‐being. Conversely, engaging in Islamic practices buffered the negative impact of discrimination. The research highlights the complexity of Muslim identity in diasporic women.     

An Assessment of the Psychometric Adequacy of the British Adaptation of the Career Development Inventory

The concept of 'vocational maturity' is defined, and the development of methods for assessing it is briefly outlined. The adaptation of one such measure - Super's Career Development Inventory - is described, and some results are reported from a study designed to assess the psychometric adequacy of this adaptation. These showed the measure to be reliable enough for use with groups but not with individuals. Scores were found to be more highly related to concomitant variables than to direct measures of vocational maturity, though this may have been due to the poor quality of some of the latter. The convergent validity of the measure was supported, but the discriminant validity was not. The implications of these results for using the measure, and particularly the need for further development work, are briefly considered. It is suggested that such work will also need to address the utility of the construct itself for Britain in the 1980s.     

CONSEQUENCES OF SOCIAL LIVING, LANGUAGE, AND CULTURE FOR CONFLICT AND ITS MANAGEMENT

Abstract. Human language leads to an open-ended proliferation of human goals and purposes, which make for complex social relationships combining competition and dependence. The resulting ambivalence in social relationships makes the management of frustration and its attendant emotions a central concern of human socialization. The specific loading of emotional problems varies according to how societies are organized, but problems are inevitable. As relations of power and dependence become more complex, human efforts to manage these problems are liable to increasingly explosive and destructive expressions, apparently an inevitable consequence of social and sapient existence.     

Where Emerging Adults in the United States Find Meaning in Life

We explored the most important sources of meaning among emerging adults and whether time spent on social media had an effect on life meaning dimensions. Results showed that the majority of emerging adults mentioned family and friends when asked in an open‐ended question about things that make their life meaningful.     

Now you see me,now you don't: evidence that chimpanzees understand the role of the eyes in attention

Chimpanzees appear to understand something about the attentional states of others; in the present experiment, we investigated whether they understand that the attentional state of a human is based on eye gaze. In all, 116 adult chimpanzees were offered food by an experimenter who engaged in one of the four experimental manipulations: eyes closed, eyes open, hand over eyes, and hand over mouth. The communicative behavior of the chimpanzees was observed. More visible behaviors were produced when the experimenter's eyes were visible than when the experimenter's eyes were not visible. More vocalizations were produced when the experimenter's eyes were closed than when they were open, but there were no differences in other attention getting behaviors. There was no effect of age or rearing history. The results suggest that chimpanzees use the presence of the eyes as a cue that their visual gestures will be effective.     

Quantity-based judgments in the domestic dog (<Emphasis Type="Italic">Canis lupus familiaris</Emphasis>)

We examined the ability of domestic dogs to choose the larger versus smaller quantity of food in two experiments. In experiment 1, we investigated the ability of 29 dogs (results from 18 dogs were used in the data analysis) to discriminate between two quantities of food presented in eight different combinations. Choices were simultaneously presented and visually available at the time of choice. Overall, subjects chose the larger quantity more often than the smaller quantity, but they found numerically close comparisons more difficult. In experiment 2, we tested two dogs from experiment 1 under three conditions. In condition 1, we used similar methods from experiment 1 and tested the dogs multiple times on the eight combinations from experiment 1 plus one additional combination. In conditions 2 and 3, the food was visually unavailable to the subjects at the time of choice, but in condition 2, food choices were viewed simultaneously before being made visually unavailable, and in condition 3, they were viewed successively. In these last two conditions, and especially in condition 3, the dogs had to keep track of quantities mentally in order to choose optimally. Subjects still chose the larger quantity more often than the smaller quantity when the food was not simultaneously visible at the time of choice. Olfactory cues and inadvertent cuing by the experimenter were excluded as mechanisms for choosing larger quantities. The results suggest that, like apes tested on similar tasks, some dogs can form internal representations and make mental comparisons of quantity.