Identity motives and cultural priming: Cultural (dis)identification in assimilative and contrastive responses

The present article explores whether effects of cultural primes are influenced by identity motives as well as by construct accessibility. The authors hypothesized that assimilative responses (shifting one’s judgments toward the norm of the primed culture) are driven by identification motives, whereas contrastive responses (shifting away from this norm) are driven by disidentification motives. Evidence for this claim was attained in reanalyzes of past data sets and a new study of Chinese American biculturals, using improved measures of identification and disidentification motives. Consistent with the identity-motive hypotheses, assimilative responses to American-culture primes occurred for high (but not low) identifiers with American culture, and contrastive responses to Chinese-culture primes occurred for high (but not low) disidentifiers with Chinese culture. Results disconfirmed an alternative account predicting that contrast effects hinge on trait self-consciousness. Consistent with an accessibility saturation account, judgment patterns already heightened in accessibility by the task structure were not made more likely by priming.     

Postscript: A good psychological theory of reasoning must predict behavior and explain the data

In their stimulating comment on Barrouillet, Gauffroy, and Lecas Oberauer and Oaksford argued that we gave no rationale for the assumption that the mental models of false-antecedent cases have a different epistemic status from the p q model and that no new computational level account of the conditional was provided to justify this move. The resulting lack of coherent principles would undermine the heuristic power of the mental model theory and lead to unacceptable consequences. Though our theory probably presents many weaknesses, it is false to assume that we did not give any rationale for the truth value gap of conditionals. Our proposal elaborates the distinction between initial and fleshed-out models that is at the core of the theory from its very beginning (Johnson-Laird & Byrne, 1991), and assumes that people consider those cases that match the initial model as making the conditional true whereas the cases that match the models added through fleshing out are judged as leaving its truth value indeterminate. (PsycINFO Database Record (c) 2008 APA, all rights reserved).     

Mental models and the suppositional account of conditionals

The mental model theory of conditional reasoning presented by P. N. Johnson-Laird and R. M. J. Byrne (2002) has recently been the subject of criticisms (e.g., J. St. B. T. Evans, D. E. Over, & S. J. Handley, 2005). The authors argue that the theoretical conflict can be resolved by differentiating 2 kinds of reasoning, reasoning about possibilities given the truth of assertions and reasoning about the truth of assertions given possibilities. The standard mental model theory accounts for the former kind of reasoning but does not adequately account for the latter, contrary to the suppositional approach favored by J. St. B. T. Evans et al. (2005). The authors thus propose a modified mental model theory of conditionals that reconciles the 2 theoretical approaches. It is demonstrated that this theory is able to explain the key findings that have been opposed to the standard theory by J. St. B. T. Evans et al. and makes new predictions that are empirically verified.     

The NO-cGMP-PKG signaling pathway regulates synaptic plasticity and fear memory consolidation in the lateral amygdala via activation of ERK/MAP kinase

Recent studies have shown that nitric oxide (NO) signaling plays a crucial role in memory consolidation of Pavlovian fear conditioning and in synaptic plasticity in the lateral amygdala (LA). In the present experiments, we examined the role of the cGMP-dependent protein kinase (PKG), a downstream effector of NO, in fear memory consolidation and long-term potentiation (LTP) at thalamic and cortical input pathways to the LA. In behavioral experiments, rats given intra-LA infusions of either the PKG inhibitor Rp-8-Br-PET-cGMPS or the PKG activator 8-Br-cGMP exhibited dose-dependent impairments or enhancements of fear memory consolidation, respectively. In slice electrophysiology experiments, bath application of Rp-8-Br-PET-cGMPS or the guanylyl cyclase inhibitor LY83583 impaired LTP at thalamic, but not cortical inputs to the LA, while bath application of 8-Br-cGMP or the guanylyl cyclase activator YC-1 resulted in enhanced LTP at thalamic inputs to the LA. Interestingly, YC-1-induced enhancement of LTP in the LA was reversed by concurrent application of the MEK inhibitor U0126, suggesting that the NO-cGMP-PKG signaling pathway may promote synaptic plasticity and fear memory formation in the LA, in part by activating the ERK/MAPK signaling cascade. As a test of this hypothesis, we next showed that rats given intra-LA infusion of the PKG inhibitor Rp-8-Br-PET-cGMPS or the PKG activator 8-Br-cGMP exhibit impaired or enhanced activation, respectively, of ERK/MAPK in the LA after fear conditioning. Collectively, our findings suggest that an NO-cGMP-PKG-dependent form of synaptic plasticity at thalamic input synapses to the LA may underlie memory consolidation of Pavlovian fear conditioning, in part, via activation of the ERK/MAPK signaling cascade.     

Contributing to world development: Research activities of the International Union of Psychological Science

Research activities of the International Union of Psychological Science are reviewed from the perspective of their broader contribution to world development. Characterized by diversity, they are also engendered by the Union's collaboration with major international organizations. Several recent projects are elaborated. The challenges of facilitating research and research networks on a global scale are also noted.     

Dimensions of the Mysticism Scale: Confirming the Three-Factor Structure in the United States and Iran

In a mostly Christian American sample (N = 1,379), confirmatory factor analysis of Hood's (1975) Mysticism Scale verified the existence of Stace's (1960) introvertive and extrovertive dimensions of mystical phenomenology along with a separate interpretation factor. A second study confirmed the presence of these three factors in not only another group of Americans (N = 188), but also in a sample of Iranian Muslims (N = 185). Relationships of the introvertive and extrovertive factors with the interpretation factor were essentially identical across these two cultures, but the Americans displayed a stronger association between the two phenomenology factors. In both samples, the interpretation factor correlated positively with an intrinsic and negatively with an extrinsic religious orientation, and the introvertive factor predicted psychological dysfunction. Associations of the interpretation factor with relative mental health appeared only in the Iranians. These data offered general support for Stace's phenomenology of mysticism, although the ineffability he linked with interpretation proved to be as much or even more a feature of the introvertive experience, as hypothesized by Hood.