Fear and anxiety are experienced on a spectrum, stretching from basic ‘normal’ emotions to the categorical phenotypes of anxiety disorders.1 Whilst much progress has been made in studying anxiety, it has been proposed that the Research Domain Criteria (RDoC) – that attempt to develop an interdisciplinary science of psychopathology, creating a set of research principles to better investigate mental disorder – may be used to investigate the pathology underlying anxiety disorders, although there are challenges to doing to so.3

References:

1.American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders. Fifth Edition – text revision. © American Psychiatric Association, 2022.

2.Domschke K. Fear and anxiety – distinct or “kindred” phenomena? Biol Psychiatry Glob Open Sci 2022; 2 (4): 314–315.

3.Zoellner LA, Foa EB. Applying research domain criteria (RDoC) to the study of fear and anxiety: a critical comment. Psychophysiology 2016; 53 (3): 332–335.