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Behav Res Methods. 2016 Jun;48(2):503-9. doi: 10.3758/s13428-015-0603-2.

ROBucket: A low cost operant chamber based on the Arduino microcontroller.

Author information

1
Diabetes, Endocrinology, and Obesity Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Building 10-CRC, Room 5-5932, 10 Center Drive, Bethesda, MD, 20892, USA.
2
Diabetes, Endocrinology, and Obesity Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Building 10-CRC, Room 5-5932, 10 Center Drive, Bethesda, MD, 20892, USA. lex.kravitz@nih.gov.

Abstract

The operant conditioning chamber is a cornerstone of animal behavioral research. Operant boxes are used to assess learning and motivational behavior in animals, particularly for food and drug reinforcers. However, commercial operant chambers cost several thousands of dollars. We have constructed the Rodent Operant Bucket (ROBucket), an inexpensive and easily assembled open-source operant chamber based on the Arduino microcontroller platform, which can be used to train mice to respond for sucrose solution or other liquid reinforcers. The apparatus contains two nose pokes, a drinking well, and a solenoid-controlled liquid delivery system. ROBucket can run fixed ratio and progressive ratio training schedules, and can be programmed to run more complicated behavioral paradigms. Additional features such as motion sensing and video tracking can be added to the operant chamber through the array of widely available Arduino-compatible sensors. The design files and programming code are open source and available online for others to use.

KEYWORDS:

Arduino; Instrumental conditioning; Open source; Operant chamber; Operant conditioning

PMID:
26019006
DOI:
10.3758/s13428-015-0603-2
[Indexed for MEDLINE]

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