Conditioned Place Preference Kelsey 1994
Behavioral testing apparatus for assessing drug reward and place conditioning in rodents using established Kelsey 1994 methodology.
Louise Corscadden, PhD
Director of Science · ConductScience
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Key Specifications
Full details →- Model fit
- Mouse, Rat
- SKU family
- CS-958284
- Sizing
- 65.0 x 36.0 x 27.0 cm
- Ordering
- Online checkout and quote request available
- Category
- Behavioral Mazes
- Build notes
- Confirm accessories, station layout, and support needs before purchase
The Conditioned Place Preference (CPP) apparatus based on Kelsey 1994 methodology is a behavioral testing system designed to assess place conditioning and drug reward mechanisms in rodents. This apparatus allows researchers to evaluate the reinforcing properties of pharmacological agents by measuring an animal's preference for environments previously paired with drug administration.
The system enables systematic investigation of addiction potential, reward pathways, and conditioned learning behaviors through controlled environmental conditioning protocols. Researchers can quantify place preference changes to assess both rewarding and aversive properties of test compounds in preclinical studies.
How It Works
The conditioned place preference paradigm operates on classical conditioning principles, where animals learn to associate specific environmental cues with drug effects. During conditioning sessions, subjects receive drug injections in one chamber and vehicle injections in the alternate chamber, creating distinct contextual associations.
The apparatus typically consists of two or three distinct chambers with different visual, tactile, or olfactory cues to facilitate discrimination learning. Animals initially show no preference between chambers during baseline testing. Following repeated drug-environment pairings, subjects develop measurable preferences for drug-associated contexts when tested in a drug-free state.
Preference is quantified by measuring time spent in each chamber during test sessions, with increased time in the drug-paired environment indicating positive reinforcing effects. Conversely, avoidance of the drug-paired chamber suggests aversive properties of the test compound.
Features & Benefits
Behavioral Construct
- Place Preference
- Conditioned Learning
- Drug Reward
- Environmental Association
- Spatial Memory
Automation Level
- semi-automated
Research Domain
- Addiction Research
- Anxiety and Depression
- Behavioral Pharmacology
- Learning and Memory
- Neuroscience
Species
- Mouse
- Rat
Compatible Tracking Software
- ConductVision
Weight
- 6.06 kg
Dimensions
- L: 65.0 mm
- W: 36.0 mm
- H: 27.0 mm
| Feature | This Product | Typical Alternative | Advantage |
|---|---|---|---|
| Protocol Standardization | Based on established Kelsey 1994 methodology | Many systems use non-standardized or modified protocols | Ensures reproducible results and facilitates comparison with published literature |
| Chamber Design | Multi-chamber configuration with distinct environmental cues | Basic two-chamber designs may lack sufficient environmental differentiation | Enhanced discrimination learning leads to more robust conditioning responses |
| Construction Quality | Durable materials suitable for repeated cleaning | Entry-level models may use materials that degrade with sanitization | Maintains experimental integrity through extended use in research facilities |
| Tracking Compatibility | Compatible with automated tracking systems | Some models require manual observation and timing | Reduces observer bias and provides precise behavioral quantification |
This apparatus provides standardized methodology implementation with robust construction for reliable conditioned place preference studies. The system supports both manual and automated data collection approaches for flexible experimental design.
Practical Tips
Conduct all conditioning and test sessions at the same time of day to control for circadian rhythm effects.
Why: Temporal consistency reduces behavioral variability and improves experimental reliability.
Verify that naive animals show no initial chamber preference during baseline sessions before beginning conditioning.
Why: Pre-existing preferences can confound conditioning effects and lead to misinterpretation of results.
Replace chamber inserts or apply new environmental cues periodically to maintain stimulus salience.
Why: Worn or faded cues may reduce discrimination ability and weaken conditioning responses.
Record both time spent and number of entries into each chamber to assess exploration patterns.
Why: Entry frequency provides additional information about behavioral patterns beyond simple time measurements.
If animals show no conditioning response, increase the drug dose or extend the conditioning period.
Why: Insufficient conditioning parameters may prevent the development of measurable place preferences.
Ensure proper ventilation in the testing room when using volatile test compounds.
Why: Adequate air circulation prevents researcher exposure and maintains consistent drug delivery to subjects.
Setup Guide
What’s in the Box
- Multi-chamber testing apparatus (typical)
- Removable chamber inserts (typical)
- Connecting hardware and doors (typical)
- Assembly instructions (typical)
- User manual with Kelsey 1994 protocols (typical)
Warranty
ConductScience provides a standard one-year manufacturer warranty covering defects in materials and workmanship, with technical support for setup and operation questions.
Compliance
What conditioning schedule should be used for reliable CPP development?
The Kelsey 1994 protocol typically employs an 8-day conditioning paradigm with alternating drug and vehicle sessions. Consult the methodology paper for specific timing and dosing parameters.
How long should test sessions be conducted to measure place preference?
Standard test sessions are typically 15-20 minutes in duration, allowing sufficient time for animals to explore both chambers and demonstrate preference behaviors.
Can the apparatus accommodate different rodent species?
The system is designed for standard laboratory rodents including mice and rats. Chamber dimensions should be verified for compatibility with your specific animal model.
What data parameters are typically measured in CPP studies?
Primary measures include time spent in each chamber, number of chamber entries, and preference scores calculated as time in drug-paired minus vehicle-paired chambers.
How should chambers be cleaned between subjects?
Thorough cleaning with appropriate disinfectants is essential to eliminate scent cues. Allow complete drying before introducing new subjects to prevent olfactory confounds.
What environmental factors can influence CPP results?
Lighting conditions, ambient noise, temperature, and time of day can affect results. Maintain consistent environmental conditions throughout all phases of testing.
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