Context-effect bias in capuchin monkeys (Sapajus spp.): exploring decoy influences in a value-based food choice task

Animal Cognition - Decision making is known to be liable to several context effects. In particular, adding a seemingly irrelevant alternative (decoy) to a set of options can modify preferences:...     

Gender Representation on Gender-Targeted Television Channels: A Comparison of Female- and Male-Targeted TV Channels in the Netherlands

The current study investigated the differences in the representation of gender on male- and female-targeted channels with regard to recognition (i.e., the actual presence of men and women) and respect (i.e., the nature of that representation or portrayal). To this end, the presence of men and women on two female- and two male-targeted Dutch channels (N = 115 programs, N = 1091 persons) were compared via content analysis. The expectation that men’s channels would portray a less equal and more traditional image of gender than women’s channels was generally supported by the results. Regardless of genre as well as country of origin of the program, women were underrepresented on men’s channels, while gender distribution on women’s channels was more equal. The representation of women in terms of age and occupation was more stereotypical on men’s channels than on women’s channels, whereas men were represented in more contra-stereotypical ways (e.g., performing household tasks) on women’s channels. Since television viewing contributes to the learning and maintenance of stereotyped perceptions, the results imply that it is important to strengthen viewers’ defenses against the effects of gender stereotyping when watching gendered television channels, for instance through media literacy programs in schools.     

Exploring the relationships among age,spiritual struggles,and health

The purpose of this study is to address two issues. First, an effort is made to see if there are age differences in the prevalence of spiritual struggles. Second, tests are performed to see if age differences exist in the relationship between spiritual struggles and physical health. Data from a recent nationwide survey reveal that younger adults report that they encounter more spiritual struggles than either middle-aged or older adults. The findings further indicate that the negative relationship between spiritual struggles and health tends to become more pronounced at successively older ages.     

Capturing attention when attention blinks

Four experiments addressed the question of whether attention may be captured when the visual system is in the midst of an attentional blink (AB). Participants identified 2 target letters embedded among distractor letters in a rapid serial visual presentation sequence. In some trials, a square frame was inserted between the targets; as the only geometric object in the sequence, it constituted a singleton. Capture effects obtained when the AB was most severe and when it was over were compared. There were 3 main results. First, capture occurred even when the AB was crippling, suggesting that a singleton exogenously engaged attention even when processing of a previous target was continuing apace. Second, when the singleton contained the key target feature, capture effects were clearly manifest. Third, even when the singleton did not possess the key target feature, it still succeeded in capturing attention, although the effects were both feeble and fleeting.     

NMDA receptors and voltage-dependent calcium channels mediate different aspects of acquisition and retention of a spatial memory task

Activity dependent calcium entry into neurons can initiate a form of synaptic plasticity called long-term potentiation (LTP). This phenomenon is considered by many to be one possible cellular mechanism underlying learning and memory. The calcium entry that induces this phenomenon can occur when N-methyl-D-aspartate receptors (NMDARs) and/or voltage-dependent calcium channels (VDCCs) are activated. While much is known about synaptic plasticity and the mechanisms that are triggered by activation of these two Ca(2+) channels, it is unclear what roles they play in learning. To better understand the role activation of these channels may play in learning we systemically administered pharmacological antagonists to block NMDARs, VDCCs, or both during training trials and retention tests in a radial arm maze task. Wistar rats injected with the NMDAR antagonist MK-801 (0.1mg/kg) were impaired in the acquisition of this task. In contrast, rats injected with verapamil (10mg/kg), an antagonist to VDCCs, acquired the task at the same rate as control animals, but were impaired on a 10-day retention test. A group of animals injected with both antagonists were unable to learn the task. The results suggest that each of the calcium channels and the processes they trigger are involved in a different stage of memory formation or expression.     

The relational self: an interpersonal social-cognitive theory

The authors propose an interpersonal social-cognitive theory of the self and personality, the relational self, in which knowledge about the self is linked with knowledge about significant others, and each linkage embodies a self-other relationship. Mental representations of significant others are activated and used in interpersonal encounters in the social-cognitive phenomenon of transference (S. M. Andersen & N. S. Glassman, 1996), and this evokes the relational self. Variability in relational selves depends on interpersonal contextual cues, whereas stability derives from the chronic accessibility of significant-other representations. Relational selves function in if-then terms (W. Mischel & Y. Shoda, 1995), in which ifs are situations triggering transference, and thens are relational selves. An individual's repertoire of relational selves is a source of interpersonal patterns involving affect, motivation, self-evaluation, and self-regulation.     

Self-verification motives at the collective level of self-definition

Three studies examined self-verification motives in relation to collective aspects of the self. Several moderators of collective self-verification were also examined--namely, the certainty with which collective self-views are held, the nature of one's ties to a source of self-verification, the salience of the collective self, and the importance of group identification. Evidence for collective self-verification emerged across all studies, particularly when collective self-views were held with high certainty (Studies 1 and 2), perceivers were somehow tied to the source of self-verification (Study 1), the collective self was salient (Study 2), and group identification was important (Study 3). To the authors' knowledge, these studies are the first to examine self-verification at the collective level of self-definition. The parallel and distinct ways in which self-verification processes may operate at different levels of self-definition are discussed.     

Magnitude and Order are Both Relevant in SNARC and SNARC-like Effects: A Commentary on Casasanto and Pitt (2019)

In a recent paper by Casasanto and Pitt (2019), the authors addressed a debate regarding the role of order and magnitude in SNARC and SNARC-like effects. Their position is that all these effects can be explained by order, while magnitude could only account for a subset of evidence. Although we agree that order can probably explain the majority of these effects, in this commentary we argue that magnitude is still relevant, since there is evidence that cannot be explained based on ordinality alone. We argue that SNARC-like effects can occur for magnitudes not clearly characterized by overlearned ordinality and that magnitude can prevail on order, when the two are pitted against each other. Finally, we propose that different interpretations of the role of order and magnitude depend on the interaction of stimulus properties and task demands.     

Prophetic performatives: the New Age’s pending efficacy through self-prophecy

This paper broadens the limited area of scholarship on New Age spiritualism by providing and explanation for the suasive force of one of its main themes, the ‘Law of Attraction’. Rhonda Byrne’s The Secret, is utilised as emblematic of the doctrine, where the individual is seen to engage in a dynamic similar to that of classical predictive prophecy, with the role of prophet being internalised. Three elements discussed are the positioning of the prophet, prophecy’s temporal ambiguity, and its linguistic tense. This paper suggests that the Law of Attraction re-imagines and employs the predictive prophetic structure and suggests that such a belief can act as a fetish.