introduction to neurocircuitry and neurobiology of anxiety

Context: nowadays, experiencing occasional anxiety is a common part of each person’s life. the number of anxious people has increased in this modern life style. this study aimed to review some researches as to accelerate searching for new anxiolytic treatments. evidence acquisition: related articles were extracted from databases including pubmed, google scholar, springer, science direct and wiley. fortyeight articles were chosen. the articles were carefully considered, and after extracting information, they were categorized and integrated in the appropriate sequences to meet the needs of this study. results: this review mentions the important brain regions involved in anxiety; it then continues with encapsulating some of the neurotransmitters’ and neuropeptides’ functions that cope with anxiety-like behaviors. conclusion: with regard to the results, it is suggested that anxiety can be caused by change in the brains’ neurotransmitters level but more studies are needed to identify its exact mechanism.