It has recently been argued that post-decision wagering provides an objective measure of awareness. We critically evaluate this claim, emphasizing the distinction between performance without awareness and a reluctance to gamble in full awareness of weak sensory evidence. We address two key methodological issues. The first is the design of the pay-off matrix to reward a strategy of wagering that reflects the strength of sensory evidence. The second is the use of signal detection theory to analyze the resulting data. We argue that proper treatment of these issues is essential if post-decision wagering is to prove valuable in validating claims of perception without awareness in normal subjects and neuropsychological patients. 相似文献
Psychonomic Bulletin & Review - Most data analyses rely on models. To complement statistical models, psychologists have developed cognitive models, which translate observed variables into... 相似文献
Using the tenets of Affection Exchange Theory, the study predicted longitudinal effects of alexithymia on both romantic relational outcomes (satisfaction and commitment) and relational communication (affectionate communication and relational maintenance behaviors). The study also predicted that Time 2 levels of relational communication would mediate the longitudinal effects of alexithymia on the relational outcomes. The results largely supported the predictions, with Time 1 alexithymia significantly negatively related to both relational outcome measures, affectionate communication, and two types of relational maintenance behaviors (understanding and assurances) at Time 2. Alternate models predicting alexithymia at Time 2 using the relational variables were nonsignificant. Finally, mediation was shown for both affectionate communication and understanding. Implications and possible directions for future research are explored. 相似文献
This paper scrutinizes the debate over logical pluralism. I hope to make this debate more tractable by addressing the question of motivating data: what would count as strong evidence in favor of logical pluralism? Any research program should be able to answer this question, but when faced with this task, many logical pluralists fall back on brute intuitions. This sets logical pluralism on a weak foundation and makes it seem as if nothing pressing is at stake in the debate. The present paper aims to improve this situation by looking at a promising case study and drawing general lessons about the kind of evidence that would support logical pluralism. I argue that the best motivation for logical pluralism will ultimately be rooted in certain kinds of performative data.
Motivation and Emotion - Two studies (ns?=?422, 263) examined individual differences in repair styles, in which strategies habitually used to repair negative affect depend on shared... 相似文献
Previous research has generated examples of how genetic and environmental factors can interact to create risk for psychopathology. Using a gene-by-environment (G x E) interaction design, we tested whether three polymorphisms in the dopamine transporter gene (DAT1, also referred to as SLC6A3, located at 5p15.33) interacted with maternal parenting style to predict first-onset episodes of depression. Participants were male adolescents (N= 176) recruited from a juvenile detention center in northern Russia. As hypothesized, one of the polymorphisms (rs40184) moderated the effect of perceived maternal rejection on the onset of major depressive disorder, as well as on suicidal ideation. Further, this G x E interaction was specific to depression; it did not predict clinically significant anxiety. These results highlight the need for further research investigating the moderating effects of dopaminergic genes on depression. 相似文献
Lower delay discounting (better self-control) is linked to higher intelligence, but the basis of this relation is uncertain. To investigate the potential role of working memory (WM) processes, we assessed delay discounting, intelligence (g), WM (span tasks, 3-back task), and WM-related neural activity (using functional magnetic resonance imaging) in 103 healthy adults. Delay discounting was negatively correlated with g and WM. WM explained no variance in delay discounting beyond that explained by g, which suggests that processes through which WM relates to delay discounting are shared by g. WM-related neural activity in left anterior prefrontal cortex (Brodmann's area 10) covaried with g, r= .26, and delay discounting, r=-.40, and partially mediated the relation between g and delay discounting. Overall, the results suggest that delay discounting is associated with intelligence in part because of processes instantiated in anterior prefrontal cortex, a region known to support the integration of diverse information. 相似文献
Many people regard utility theory as the only rigorous foundation for subjective probability, and even de Finetti thought
the betting approach supplemented by Dutch Book arguments only good as an approximation to a utility-theoretic account. I
think that there are good reasons to doubt this judgment, and I propose an alternative, in which the probability axioms are
consistency constraints on distributions of fair betting quotients. The idea itself is hardly new: it is in de Finetti and
also Ramsey. What is new is that it is shown that probabilistic consistency and consequence can be defined in a way formally
analogous to the way these notions are defined in deductive (propositional) logic. The result is a free-standing logic which
does not pretend to be a theory of rationality and is therefore immune to, among other charges, that of “logical omniscience”. 相似文献
Conceptual implicit memory is demonstrated when, in the absence of explicit retrieval, performance on a task requiring conceptual processing benefits more from prior conceptual encoding than from prior nonconceptual encoding. In the present study, we sought to provide an improved measure of conceptual implicit memory by minimizing contamination from explicit retrieval. On a modified word association test, participants free-associated to the actually studied items, with response time to produce any associate serving as the dependent measure. Experiment 1 varied whether words were read or generated at study and showed that generated words were associated to more quickly than were read words. Experiment 2 varied level of processing at study and showed that words processed semantically were associated to more quickly than were words processed nonsemantically. With modifications to ensure its implicit nature, a conceptual implicit test can be consistently affected by the same encoding manipulations as those that affect conceptual explicit memory tests. 相似文献