Current status of research on Lang s three-dimensional theory of anxiety

This study presents a review of the three-dimensional theory proposed by Lang (1968), who maintains that anxiety is manifested through a triple response system (cognitive, physiological and motor or behavioral) that may lack concordance. These three systems, governed by different rules, result in differential response profiles that must be assessed separately in order to choose the most appropriate treatment method. In this line, we present a systematic review of investigations that have supported Lang s theory to this date. Finally, this study analyses different questionnaires, inventories and scales developed since the publication of Lang s theory, revealing that at present the three-dimensional theory of anxiety is still applied in clinical, health and school settings, reflecting its currency, relevance and practicality.