Tail Suspension Test
Tail Suspension Test - Related Videos
10:17
The Tail Suspension Test
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Cited by 534 •
2012
The tail-suspension test is validated as an experimental procedure to assess antidepressant efficacy of drug treatments in mice. Mice are suspended by their tails for six minutes and escape-related behaviors are assessed. We describe procedures used in conducting the tail suspension test.
03:21
Murine Tail Lymphedema Model: An In Vivo Technique to Generate Sustained Lymphedema in Murine Tail
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2025
This video describes an in vivo technique to generate murine tail lymphedema, an abnormal fluid accumulation in the interstitial tissue space leading to swelling in the tail. The model is applied to study mechanisms and therapy for lymphedema.
07:26
Isolation of Genomic DNA from Mouse Tails
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Cited by 23 •
2007
07:11
Sampling Blood from the Lateral Tail Vein of the Rat
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Cited by 82 •
2015
Blood samples are useful for assessing biomarkers of physiological states or disease in vivo. Here we describe the methodology to sample blood from the lateral tail vein in the rat. This method provides rapid samples with minimal pain and invasiveness.
04:16
ECM Suspension Preparation: A Technique to Obtain Homogenous Suspension from Tissue-derived Extracellular Matrix
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2023
This video describes the preparation of a homogenized and digested extracellular matrix suspension from decellularized and lyophilized tissues. This technique helps in fabricating ECM-derived porous foams and microcarriers for use as substrates in advanced 3D cell culture models.
FAQs
Immobility may reflect several processes besides behavioral despair, including reduced locomotion or altered arousal. Strain-specific traits can also influence how mice respond to suspension. Consequently, a longer or shorter immobility period does not provide a complete psychological interpretation by itself. Researchers should treat the result as an indicator of stress-coping behavior that requires contextual interpretation.
The transition from active struggling to immobility provides a behavioral pattern for evaluating coping under acute stress. Researchers measure these periods rather than relying on a single qualitative impression. Changes in the balance or duration of these behaviors can suggest altered stress sensitivity or coping responses, but they do not identify one unique underlying mechanism without supporting evidence.
Locomotion, arousal, and strain-specific behavioral traits can all affect immobility. A treatment or biological difference that changes activity level may therefore alter the score without specifically affecting mood-related coping. Accounting for these influences is essential when interpreting drug effects, because an apparent reduction in immobility may reflect broader behavioral activation rather than antidepressant sensitivity alone.
When a compound changes immobility in the Tail Suspension Test, the result can help researchers examine pathways associated with mood-related behavior and stress coping. The assay does not identify those pathways independently; its value comes from relating behavioral changes to other behavioral or physiological findings. This combined approach supports a more cautious interpretation of neural mechanisms.
Researchers compare behavioral responses after exposure to antidepressant compounds and examine whether immobility changes. Such changes can indicate altered sensitivity to the treatment and help characterize its effects on stress-coping behavior. The test is therefore useful for screening or investigating treatment-related behavioral effects, while interpretation remains limited if locomotion, arousal, or strain differences are not considered.
The assay is most informative when paired with other behavioral and physiological measures. Additional behavioral data can help determine whether immobility reflects altered activity or arousal, while physiological findings may provide complementary evidence about stress-related processes. Using multiple measures reduces the risk of assigning a mood-specific meaning to a result that may have several possible explanations.