BACKGROUND The two main constituents of cannabis, cannabidiol and Δ(9)-tetrahydrocannabinol (THC), have opposing effects both pharmacologically and behaviourally when administered in the laboratory. Street cannabis is known to contain varying levels of each cannabinoid. AIMS To study how the varying levels of cannabidiol and THC have an impact on the acute effects of the drug in naturalistic ...

Complex problem solving in naturalistic environments is fraught with uncertainty, which has significant impacts on problem-solving behavior. Thus, theories of human problem solving should include accounts of the cognitive strategies people bring to bear to deal with uncertainty during problem solving. In this article, we present evidence that analogy is one such strategy. Using statistical anal...

AIMS To investigate the relationship between objectively-assessed alcohol consumption and perception of attractiveness in naturalistic drinking environments, and to determine the feasibility and acceptability of conducting a large-scale study in these environments. METHODS Observational study conducted simultaneously across three public houses in Bristol, UK. Participants were required to rat...

Statistical learning, the ability to extract regularities from input (e.g., in language), is likely supported by learners’ prior expectations about how component units co-occur. In this study, we investigated adults’ experience with sublexical their native language influences performance on an empirical learning task. Forty German-speaking adults completed a speech repetition task which they re...

positive political metatheory based on the naturalistic ontology concerning unity of method in science, implies reducing social and political issues to naturalistic one and study the emperical regularities in a similar methodology. therfore, behaviors political fields conciderd to be subjected to a causal order that implies explanation and prediction according to deductive structure of scientif...

This paper reports on a review of a number of well-known naturalistic decision making. NDM, models (Zsambok & Klein, 1997). Key features of these models were identified and were found to represent different views of the same naturalistic decision making process. The key features of these different views were then integrated into a single model called the Integrated Decision Model. To validate t...