Acute effects of triazolam on false recognition

Neuropsychological, neuroimaging, and electrophysiological techniques have been applied to the study of false recognition; however, psychopharmacological techniques have not been applied. Benzodiazepine sedative/anxiolytic drugs produce memory deficits similar to those observed in organic amnesia and may be useful tools for studying normal and abnormal memory mechanisms. The present double-blind, placebo-controlled repeated measures study examined the acute effects of orally administered triazolam (Halcion; 0.125 and 0.25 mg/70 kg), a benzodiazepine hypnotic, on performance in the Deese (1959)/Roediger-McDermott (1995) false recognition paradigm in 24 healthy volunteers. Paralleling previous demonstrations in amnesic patients, triazolam produced significant dose-related reductions in false recognition rates to nonstudied words associatively related to studied words, suggesting that false recognition relies on normal memory mechanisms impaired in benzodiazepine-induced amnesia. The results also suggested that relative to placebo, triazolam reduced participants' reliance on memory for item-specific versus list-common semantic information and reduced participants' use of remember versus know responses.     

Familiarity Bias and Belief Reversal in Relative Likelihood Judgment

People are often called on to make an assessment of the relative likelihood of events (e.g., which of two investments is more likely to outperform the market?) and their complements (which of the two investments is more likely to perform no better than the market?). Probability theory assumes that belief orderings over events and their complements should mirror each other (i.e., P(A) >/= P(B) iff P (not-A) 相似文献   

Direct versus Indirect Well-Being Measures: Using Partially Structured Stimuli to Evaluate Well-Being

Given the important limitations of direct (explicit) measures, the study of indirect (implicit) measures of psychological constructs has received increased attention of social researchers. However, in the field of well-being the measures that have traditionally been used have tried to capture people’s well-being in an explicit and direct way, with some exceptions that are based mainly on adaptations of the Implicit Association Test (IAT). Given the critics that the IAT has received, the first aim of the present research was to develop a new life satisfaction measure using partially structured stimuli (PSWBS). The second goal was to examine the relation between direct and indirect well-being measures. In the first study, PSWBS showed good internal consistency, test–retest reliability and construct validity. Factorial analyses indicated that this measure acted as an indirect measure. In addition, direct and indirect well-being showed a significant but weak relation. To explain this result, in a second study we analyzed the moderating role of social comparison orientation on the relation between direct and indirect well-being measures. As expected, more social comparison tendency implied a stronger relation. In a third study we analyzed the criterion validity of both kind of measures. The PSWBS, the Personal Wellbeing Index-Adults and the Satisfaction With Life Scale significantly correlated with a criterion validity coefficient in terms of a semi-structured interview made by an external experimenter. Finally, in a fourth experiment we analyzed the influence of social desirability on direct and indirect measures of well-being. In contexts of high desirability, partially structured stimuli seemed to be more resistant to response factors (e.g., control of impressions) than traditional direct measures.

     

Value beyond truth-value: a practical response to skepticism

Synthese - I aim to offer a practical response to skepticism. I begin (in section one) by surveying a family of responses to skepticism that I term “dogmatic” and argue that they are...     

To Fail or Not to Fail? Implications of Extinction on Creativity and Problem-Solving Behavior

The Psychological Record - According to Epstein (1985), extinction is one of the main processes for creative problem solving. To test this assertion, we present an experiment in which we...     

Retracted: Unconscious arithmetic processing: A direct replication

Across two experiments involving four conditions, Sklar et al. (2012) found that complex subtraction equations can be solved without awareness of the equations. These findings challenge the current position that consciousness is necessary for performing abstract, rule‐following tasks. Given the important implications of their work, we directly replicate Sklar's findings using a larger sample (n = 94) from a different population. Using Continuous Flash Suppression, we investigated if people were able to solve an equation after subliminal (1300 ms) exposure to it. We found evidence for unconscious addition but not subtraction. The effect of unconscious addition was eliminated when participants reported subjective awareness of the primes. Critical review of our results and implications for further research are discussed.     

Conceptual Integration of Arithmetic Operations With Real‐World Knowledge: Evidence From Event‐Related Potentials

Research on language processing has shown that the disruption of conceptual integration gives rise to specific patterns of event‐related brain potentials (ERPs)—N400 and P600 effects. Here, we report similar ERP effects when adults performed cross‐domain conceptual integration of analogous semantic and mathematical relations. In a problem‐solving task, when participants generated labeled answers to semantically aligned and misaligned arithmetic problems (e.g., 6 roses + 2 tulips  = ? vs. 6 roses + 2 vases  = ?), the second object label in misaligned problems yielded an N400 effect for addition (but not division) problems. In a verification task, when participants judged arithmetically correct but semantically misaligned problem sentences to be “unacceptable,” the second object label in misaligned sentences elicited a P600 effect. Thus, depending on task constraints, misaligned problems can show either of two ERP signatures of conceptual disruption. These results show that well‐educated adults can integrate mathematical and semantic relations on the rapid timescale of within‐domain ERP effects by a process akin to analogical mapping.     

Children as Earwitnesses: Memory for Emotional Auditory Events

We examined the influence of age and emotionality of auditory stimuli on long‐term memory for environmental sound events. Sixty children aged 7–11 years were presented with two environmental sound events: an emotional car crash and a neutral event, someone brushing their teeth. The sound events comprised six individual environmental sounds, and the participants passively listened to the sound events through a headset. After a two‐week delay, participants performed a cued recall task and a recognition task. Independent of age, children were notably poor at recalling the sound events. Children recalled and recognized significantly more sounds from the emotional sound event than the neutral sound event. Additionally, the older children performed the recall task better than the younger children. The present findings confirm and expand the previously reported superiority of emotional material in memory.Copyright © 2016 John Wiley & Sons, Ltd.