Related Experiment Video
Updated: Jul 21, 2026

The Successive Alleys Test of Anxiety in Mice and Rats
Published on: June 17, 2013
Choice of rating form for evaluating anxiolytics
The Hamilton Anxiety Rating Scale (HAM-A) has limitations for studying anxiolytics due to its length and inconsistency. The Wilcoxon Anxiety Rating Scale (WARS) offers a simpler, more sensitive alternative for assessing anxiety symptoms in clinical trials.
Area of Science:
- Psychiatry
- Clinical Pharmacology
- Psychometrics
Background:
- The Hamilton Anxiety Rating Scale (HAM-A) is widely used for anxiety assessment.
- HAM-A's structure, with 89 symptoms across 14 items, presents challenges in anxiolytic studies, including redundancy and inconsistent ratings.
- The lengthy evaluation process of HAM-A is time-consuming for frequent patient monitoring during pharmacotherapy.
Purpose of the Study:
- To introduce and evaluate the Wilcoxon Anxiety Rating Scale (WARS) as a tool for assessing anxiety symptoms in anxiolytic research.
- To highlight WARS's advantages over HAM-A in terms of simplicity, sensitivity, and efficiency for clinical trials.
Main Methods:
- The WARS was specifically designed to quantify anxiety symptoms relevant to anxiolytic studies.
- WARS comprises 12 one-word items covering key psychic and somatic anxiety symptoms.
- Medication side effects are rated separately, enhancing focus on therapeutic changes.
Main Results:
- WARS is designed to be more sensitive in detecting therapeutic changes in anxiety.
- Its simple, unambiguous format allows for accurate and effortless completion.
- WARS streamlines the assessment process compared to the more cumbersome HAM-A.
Conclusions:
- The WARS is a practical and effective instrument for evaluating anxiety in the context of anxiolytic drug studies.
- WARS offers a more efficient and sensitive alternative to the HAM-A for clinical research on anxiety pharmacotherapy.
More Related Videos
07:54Testing Animal Anxiety in Rats: Effects of Open Arm Ledges and Closed Arm Wall Transparency in Elevated Plus Maze Test
Published on: June 29, 2018
05:42Elevated Plus Maze Test Combined with Video Tracking Software to Investigate the Anxiolytic Effect of Exogenous Ketogenic Supplements
Published on: January 7, 2019
Related Concept Videos
CNS Depressants: Barbiturates and Benzodiazepines
Anxiolytic Drugs: Overview
Primary Types of Anxiolytic Drugs
1. Benzodiazepines:
Benzodiazepines bind to the GABA-A receptor in the brain, enhancing GABA's interaction. This action reduces neurotransmission, effectively blocking anxiety-associated limbic circuitry.
Anxiolytic Drugs: Benzodiazepines and Buspirone
Sedatives and Hypnotics: Overview
Sedative-hypnotics are categorized into barbiturates, benzodiazepines (BZDs), and non-benzodiazepines or Z-drugs. These drugs work by suppressing central nervous system activity, and this suppression is dose-dependent. Older sedative medications, like barbiturates, follow a linear curve in...
Sedatives and Hypnotics Drugs: Benzodiazepines
Benzodiazepines work by enhancing the effects of the inhibitory neurotransmitter GABA. They bind to the GABAA receptor, increasing its affinity for GABA, which opens chloride...
Sedatives and Hypnotics Drugs: Miscellaneous Agents
Melatonin congeners like ramelteon (Rozerem) and tasimelteon (Hetlioz) selectively bind to melatonin receptors (MT1 and MT2) and thus mimic the actions of melatonin, a hormone that regulates sleep-wake cycles. Tasimelteon is primarily used for non-24-hour sleep-wake disorder, common in blind patients. They are also used to treat conditions like insomnia...