objective: substance abuse is a socio-psychological disorder. the aim of this study was to compare the effectiveness of acceptance and commitment therapy with 12-steps narcotics anonymous on psychological well-being of opiate dependent individuals in addiction treatment centers in shiraz, iran. method: this was a randomized controlled trial. data were collected at entry into the study and at po...

Recent work in psychology and linguistics has shown that frequency of occurrence is an important determinant of language acquisition, language use, and diachronic change. This paper surveys the effects of frequency on the use and development of language and considers the psychological mechanisms that underlie the various frequency effects. The paper shows that frequency has an impact on the eme...

In this paper we explore the utility of topicmodeling techniques (LDA, sLDA, SNLDA) in computational linguistic analysis of text for the purpose of psychological evaluation. Specifically we hope to be able to identify and provide insight regarding clinical depression.

Listeners identify talkers more accurately in their na­ tive language than an unknown, foreign language in a phenomenon called the language-familiarity effect. However, the psychological basis for this effect re­ mains unknown. Some have suggested that the linguistic processes involved in speech perception and comprehension facilitate native­language talker identification. Others have argued th...

This paper investigates whether an abstract linguistic construction shows the kind of prototype effects characteristic of non-linguistic categories, in both adults and young children. Adapting the prototype-plus-distortion methodology of Franks and Bransford (1971), we found that whereas adults were lured toward false-positive recognition of sentences with prototypical transitive semantics, you...

This paper discusses the task of formulating a model of linguistic performance and proposes an approach toward this goal that is oriented toward an embodiment of the model as a digital-computer program. The methodology of current linguistic theory is criticized for several of its features that render it inapplicable to a realistic model of performance, and remedies for these deficiencies are pr...