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Updated: Jan 27, 2026

Social Isolation Model: A Noninvasive Rodent Model of Stress and Anxiety
Published on: November 11, 2022
Establishment of a rodent cooperation assay as a model of social cognition
Kata Kozma1, Ferenc Kassai1, Aliz J Ernyey1
1MTA-SE NAP B Cognitive Translational Behavioural Pharmacology Group, Department of Pharmacology and Pharmacotherapy, Faculty of Medicine, Semmelweis University, Nagyvárad tér 4, Budapest, 1089, Hungary; Institute of Cognitive Neuroscience and Psychology, Research Center for Natural Sciences, Hungarian Academy of Sciences, Magyar tudósok körútja 2, Budapest, 1117, Hungary.
Introduction:
Impaired cooperative skills form a characteristic symptom in autism, which lacks adequate treatment. The objective of this study was to establish a rat cooperation assay which fits the feasibility and capacity requirements of drug development.
Methods:
Long-Evans and Lister Hooded rats were trained in pairs to simultaneously perform nose-pokes (within 1 s) for reward in a Skinner box equipped with two nose-poke modules. Conditioning took place first with naive-naive pairs, then with naive-experienced and finally with experienced-experienced pairs, when the task was familiar for both rats. In a control experiment, experienced Lister-hooded pairs were tested under the learnt schedule but without the possibility to communicate with each other.
Results:
Rats were able to learn the task in 8-15 sessions. Experienced-experienced Long-Evans pairs completed the training significantly faster than the other pairs Analysis of the nose-poke latency data, sample video-recordings and the significantly decreased performance of rats in the control experiment suggested that the animals solved the task via real cooperation.
Discussion:
The newly developed rat cooperation model is quick and has sufficiently high throughput, therefore it may be used in the drug development of putative social cognitive enhancer compounds.
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