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61.
Péter Pongrácz Dorottya Hegedüs Beatriz Sanjurjo Adrienn Kővári Ádám Miklósi 《Learning and motivation》2013
The level of motivation (i.e. incentive power) is thought to be one of the most important factors affecting performance and learning in various tasks. We investigated whether reward quality has an effect on the performance of family dogs in a two-way object choice test in which they can find the hidden food by relying on distal momentary human pointing cues. In three experiments we varied (1) the type of food reward according to the subjects’ own preference; (2) the quality of the reward offered at the same time in the indicated and not-indicated locations; and (3) the order of the high or low quality rewards in consecutive sessions. In Experiment 1, we first tested whether dogs prefer one kind of reward over another. Then one group was tested with the ‘preferred’ food as reward in the indicated bowl, while dogs in the other group received the ‘non-preferred’ food as reward. We did not find any difference between the performance and choice latencies of the two groups. In Experiment 2 for the first group, the indicated bowl contained a piece of carrot and the not-indicated bowl was empty. In the second group the indicated bowl contained carrot, but the not-indicated bowl contained sausage. According to a preliminary preference test, most dogs prefer sausage over carrot invariably. After 20 trials, the two groups performed surprisingly similarly. There was no difference found between groups in the number of correct choices, incorrect choices and non-choices. However, the comparison between the first and last five trials revealed that subjects who found sausage when they chose the not-indicated bowl (did not follow the pointing) chose the non-indicated bowl significantly more often toward the end of their test session. In Experiment 3, each dog received two sessions with 12 pointing trials in each. For the first session, one group was rewarded with sausage and the other with carrot upon choosing the indicated bowl. In the second session, the indicated bowl contained dry dog food for both groups. We found that correct choices and response latencies did not change over two sessions in the ‘sausage’ group. In the ‘carrot’ group, the dogs chose faster in the second session, but their performance did not improve; in fact, they chose the not-indicated bowl more often than the indicated bowl. As a conclusion, we can say that reward quality had some effect on dogs’ choice behavior in these experiments. The drop in their performance was not drastic, taking into account the general refusal to eat one of the ‘rewards’ (carrot) during the preference tests and also during the test trials. It seems that incentive contrast may play a relatively minor role in dog-human social interactions. Appropriate reward quality can be very important in asocial problem solving tasks, but, when interacting with humans, following human signals may override the effect of changed incentive power. 相似文献
62.
Abstract In Part I of this article, background and rationale for the construction of a Selfhood model-derived visual-verbal Dyadic Relationships Test (DRT) is presented. Results from studies covering its reliability and verification of its psychometric properties are presented. Construct validity was evaluated through research with competing theoretical models. In Part II, results from studies are reported through discriminant and concurrent validity analyses in adoptive and traditional couples. A revision evaluated its construct validity with measures of negotiation, intimacy, and communication, and through relational and emotional life at different stages of the life cycle, including empty nest and retirement. Results from these studies tend to support the psychometric properties of this instrument and, indirectly, the validity of the Selfhood model underlying its construction. 相似文献
63.
Mario Rendón M.D 《International Forum of Psychoanalysis》2013,22(3):158-168
Abstract Karen Horney, a Neo-Freudian analyst who immigrated from Germany to the USA, undertook the difficult task of developing a theory that remained concrete psychology without resorting to biology or to metapsychological entelechies. Although her basic construct, as in Freud, is a conflict between nature and culture, nature for her is the naturally endowed real self, which the neurotic abandons bowing to cultural pressures. This process of desertion is teleological and based on imagination, and is also creative. It entails the pursuit of a god-like idealized image of the self shaped according to narrow and despoiled values. Being interpersonal, Horney's theory avoids third-person objectification which creates a false distance; it thus remains (inter)subjective. A theory of interpersonal affect, it is dramatic before being dynamic. It also abandons claims to universality as it does to the “objectivity” of the natural sciences. Horney's focus on alienation brings her close to Hegel and Marx, a neglected fact, and she pioneered feminist and self-help theories. The difficulty in reading Horney is not her abstruseness, since her theory refuses technicism. It resides rather in that resistance created by what Althusser called interpellation: one feels her finger pointed at oneself as one reads. 相似文献
64.
Angelica Hagsand Emma Roos Af Hjelmsäter Pär Anders Granhag Claudia Fahlke Anna Söderpalm‐Gordh 《Scandinavian journal of psychology》2013,54(3):188-195
This study investigated how different doses of alcohol affected eyewitness recall. Participants (N = 126) were randomly assigned to three groups with different blood alcohol concentration (BAC), either a control group (mean BAC 0.00%, N = 42), a lower alcohol dose group (mean BAC 0.04%, N = 40), or a higher alcohol dose group (mean BAC 0.06%, N = 44). After consumption, participants witnessed a movie of a mock crime and were interviewed one week later. The main results showed that witnesses with the higher intoxication level recalled fewer details compared to witnesses with the lower intoxication level. The amount of alcohol consumed did not have an impact on the accuracy rate. No sex differences were found. The results are discussed in the light of past research. We conclude that more studies are needed before recommendations can be made to an applied setting. 相似文献
65.
Mirko Pesce Lorenza Speranza Sara Franceschelli Valentina Ialenti Irene Iezzi Antonia Patruno Alessia Rizzuto Claudio Robazza Maria Anna De Lutiis Mario Felaco Alfredo Grilli 《Aggressive behavior》2013,39(2):141-148
Recently, several studies reported a relationship between immune system activation and anger expression. Consequently, the aim of this study was to explore immunitary molecular mechanisms that potentially underlie anger expression. To this end, we applied the Frustration—Aggression Theory in a contact sport model, utilizing the nearing of sporting events to trigger anger feelings. In parallel, we evaluated the activation of immune system at mRNA levels. We enrolled 20 amateur rugby players (age ± SD, 27.2 ± 4.5) who underwent psychological assessment to evaluate anger, with the State‐Trait Anger Expression Inventory‐2 (STAXI‐2), before rugby matches; at the same time blood samples were taken to analyze the variations of gene expression by microarray. During the 2 hr before each game, a significant increase was verified in the Rage State (RS) score compared to the score ascertained 72 hr before. At the same time, we found modulation in expression profile, in particular increased expression of gene that encodes interleukin l‐β (IL‐1β). In a regression analysis, RS score was related to IL‐1β, and the potential risk factors age, body mass index, smoking, and drinking. The levels of cytokine were positively and independently related to RS score. Our results suggest that the nearing of sporting event can trigger anger state feelings and activate immune system in rugby players. We propose the IL‐1β as a potential biological marker of anger. However, further research is necessary to clarify the correlation between cytokine and anger. Aggr. Behav. 39 :141‐148, 2013. © 2012 Wiley Periodicals, Inc. 相似文献
66.
Abstract The aim of the present study was to investigate whether the intraocular pressure (IOP) responses in myopes and normally-sighted controls differ when the subjects are exposed to a short-term achievement related stressor. A second aim was to examine to what extent IOP would decrease through relaxation in myopes as compared with the controls. Nineteen short-sighted and 19 normally-sighted adults were subjected to four conditions: (1) baseline I, (2) arithmetical mental operations under time pressure and noise, (3) baseline II, and (4) relaxation. IOP was assessed before and after each experimental condition. Heart rate was measured, and subjective ratings were obtained regarding the level of stress and relaxation subjects experienced. The stressing achievement situation led to significant increases in IOP and to significantly higher increases in myopes than in controls. Relaxation led to significant decreases of IOP in both groups. Heart rate and subjective ratings did not differ between groups under any condition. The present results point to specific intraocular reaction patterns to stress in myopic persons. The potential impact of this finding for a behavioral approach to shortsightedness is high since IOP is considered one of the main variables in the development of myopia. 相似文献
67.
Abstract This current study investigated a link between stress and coping with some male infertility problems via psychoneuroimmunological theories. The study was carried out on 77 males who came to a fertility clinic for sperm diagnosis. Appraisal and coping with stress reaction to negative life events and to infertility were related to non-sperm cells within the seminal plasma. Those men who had felt strained from external events and from problems of infertility, and had used emotional escape coping strategies, were more prone to have an immunosuppressed reaction, indicated by bacteria within their plasma. Those using task focused control strategies were more prone to have an immunostimulatory reaction, indicated by white blood cells, including in some cases, sperm destroying phagocytes suggesting a possible auto-immunity reaction. When the analyses were done separately on patients with known male fertility problems in comparison with those with unexplained infertility, the two opposing psychoneuroimmunological processes became more pronounced. 相似文献
68.
Mario I. Aguilar 《文化与宗教》2013,14(2):233-245
This paper examines some of the current ideas and methods that have problematised the study of religion within a globalised community. Religion and culture cannot be considered bounded entities, to be described as unchangeable. However, their constant process of change is not something new. It becomes new due to writing patterns and contemporary ideas on the relevance of religion or the creativity of culture. By analysing some discussions on possession cults, the paper suggests that ritual and performance constitute the moments when culture and religion are mediated. It is through ritual that religious practices are adapted, and it is in a ritual performance where culture is contested and challenged. Religion becomes ‘confused culture’, that once again is re‐organised and made orderly by reflection on ritual practices. Finally, the paper suggests that the agenda for an anthropology of religion for this new century is two‐fold. Firstly, to try to become more conversant with ever changing localised practices of ritual, and secondly, to try to converse about those practices with other practitioners and scholars from different fields and in different fields. 相似文献
69.
Snezhanka Kazakova Veroline Cauberghe Mario Pandelaere Patrick De Pelsmacker 《Media Psychology》2013,16(4):425-450
Media multitasking represents an important aspect of the recent evolution in media consumption habits. While some experimental research exists, it has primarily focused on the detrimental effects of multitasking on task performance. We go a step further by examining the impact of media multitasking on information processing style. Study I demonstrates that media multitasking, compared to sequential media consumption, leads to a more local perceptual processing style. Furthermore, the frequency of media switching predicts the level of perceptual processing. Study II extends these findings by showing that media multitasking also affects conceptual processing style. Specifically, media multitasking leads to lower-level (or more concrete) construal of behaviors in a subsequent task. It further shows that conceptual rather than visual switching between media drives the observed differences in conceptual processing. These findings suggest that, as a growing phenomenon, media multitasking behavior may substantially alter the way media viewers process media content. 相似文献
70.
Decades of research on the concreteness effect, namely better memory for concrete as compared with abstract words, suggest it is a fairly robust phenomenon. Nevertheless, little attention has been given to limiting retrieval contexts. Two experiments evaluated intentional memory for concrete and abstract word lists in three retrieval contexts: free recall, explicit word-stem completion, and implicit word-stem completion. Concreteness effects were observed in free recall and in explicit word-stem completion, but not in implicit word-stem completion. These findings are consistent with both a bidirectional version of the relational-distinctiveness processing framework (Ruiz-Vargas, Cuevas, & Marschark, 1996) and a second framework combining insights from dual coding theory (Paivio, 1971, 1986) and the transfer appropriate processing framework (Roediger, Weldon, & Challis, 1989). Also, consistent with the relational-distinctiveness framework, the second experiment suggested that concreteness effects might depend on relational processing at encoding: Concreteness effects were observed in explicit memory for related word lists but not for unrelated word lists. 相似文献