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Puzzle Box
SKU ME-4704-E
$1,795.00
Unit: Each
IncludesStandard Care
Behavioral apparatus for assessing general cognition, executive function, and problem-solving in rodents through escape learning from a bright start zone to a dark goal compartment.
BAA available
Scientist guidance
Louise Corscadden, PhD
Director of Science · ConductScience
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Key Specifications
Full details →- Model fit
- Mouse, Rat
- SKU family
- ME-4703/4704
- Sizing
- Mouse: Length 58 cm · Width 28 cm; Rat: Length 87 cm · Width 42 cm
- Ordering
- Online checkout and quote request available
- Category
- Behavioral Mazes
- Build notes
- Confirm accessories, station layout, and support needs before purchase
The Puzzle Box is a behavioral apparatus designed to assess general cognition, executive function, and problem-solving abilities in rodents. This classic maze configuration evaluates an animal's capacity to navigate from a brightly illuminated start zone through an underpass to reach a darkened goal compartment. The paradigm measures escape latency, exploration patterns, and cognitive flexibility as animals learn to solve the spatial puzzle through trial-and-error learning.
Available in mouse and rat configurations with species-appropriate dimensional scaling, the apparatus features distinct environmental zones that leverage the natural preference of rodents for dark, enclosed spaces. The contrast between the aversive bright start zone and rewarding dark goal zone creates motivation for task completion while allowing researchers to quantify cognitive performance through latency measurements and behavioral observation.
How It Works
The Puzzle Box operates on the principle of escape learning, utilizing the natural aversion of rodents to brightly illuminated environments and their preference for dark, enclosed spaces. Animals are placed in the illuminated start zone and must discover the concealed underpass entrance to reach the rewarding dark goal compartment. This creates an innate motivation to solve the spatial puzzle without requiring food restriction or external reinforcement.
Cognitive assessment occurs through measurement of escape latency - the time required for an animal to locate and navigate through the underpass. Initial trials reflect problem-solving ability and exploration strategies, while repeated exposures reveal learning capacity, memory retention, and cognitive flexibility. The paradigm engages executive functions including spatial working memory, behavioral inhibition, and strategy switching as animals optimize their navigation approach across trials.
Features & Benefits
Species-specific dimensional scaling
Optimized underpass and compartment dimensions for mouse (4×2×15cm) and rat (6×3×22cm) ensure appropriate navigation challenges for each species
Contrasting environmental zones
Bright start zone and dark goal compartment create natural motivation for task completion without requiring food deprivation protocols
Concealed underpass design
Hidden entrance location requires active exploration and problem-solving rather than simple directional movement toward visible goal
Modular assembly construction
Component-based design allows for easy cleaning, storage, and potential configuration modifications for specialized protocols
Multiple color options available
Black, blue, clear, grey, and white color choices enable visual contrast optimization and integration with existing laboratory setups
Removable goal zone cover
Adjustable darkness levels in goal compartment allow for experimental manipulation of reward magnitude and visibility conditions
Integrated storage solution
Included storage components facilitate organized laboratory space management and apparatus protection between experimental sessions
Research identifiers
These IDs come from the Measurement Method Ontology (MMO) and NCBI Taxonomy. Use them in data records and methods sections.
- Behavioral test
- Puzzle box
MMO:0000603 - Species
- Mouse
NCBITaxon:10090 - Rat
NCBITaxon:10116
- Mouse
Sizes by model
| Measurement | Mouse | Rat |
|---|---|---|
| Length | 58 cm | 87 cm |
| Width | 28 cm | 42 cm |
| Height | 27.5 cm | 41.5 cm |
Notes
- Default Color: White. Additional Colors: Black/Clear/Grey/Blue
- Start Zone (brightly lit)
- Dark Zone: . . . With Cover
- Mouse: Access to the goal box is normally via an underpass 4 cm wide, 2 cm deep and 15 cm long
- Mouse: Length 15 cm
- Rat: Access to the goal box is normally via an underpass 6 cm wide, 3 cm deep and 22 cm long
- Rat: Length 22 cm
Shipping weight
- 21.0 lb
Shipping box
- L: 43.2 cm
- W: 38.0 cm
- H: 27.9 cm
| Feature | This Product | Typical Alternative | Advantage |
|---|---|---|---|
| Environmental Motivation | Natural light-dark preference with bright start zone and dark goal compartment | Many cognitive tests require food restriction or external reinforcement schedules | Eliminates confounding effects of nutritional status and reduces animal welfare concerns associated with food deprivation protocols |
| Species Configuration Options | Dedicated mouse and rat dimensional scaling with appropriate underpass sizes | Generic sizing requires manual adjustments or custom modifications | Ensures optimal difficulty level and prevents size-related confounding factors that could affect cognitive assessment validity |
| Assembly Design | Modular components with integrated storage solutions and multiple color options | Fixed configurations with limited customization options | Provides experimental flexibility and efficient laboratory space management while accommodating diverse protocol requirements |
| Task Complexity | Hidden underpass entrance requiring spatial exploration and discovery learning | Simpler preference tests may lack cognitive challenge for comprehensive assessment | Engages multiple cognitive domains including executive function, spatial working memory, and problem-solving strategies |
This puzzle box apparatus offers species-optimized dimensions, natural behavioral motivation through light-dark preference, and modular design flexibility. The hidden underpass configuration provides cognitive challenge appropriate for executive function assessment while maintaining standardized testing conditions across research applications.
| Model | Size | SKU | Listed price | Status | Shipping box |
|---|---|---|---|---|---|
| Mouse | Length 58 cm · Width 28 cm · Height 27.5 cm | ME-4703-G (+4) | $1,695.00 | Available | 43.2 × 38.0 × 27.9 cm |
| Rat | Length 87 cm · Width 42 cm · Height 41.5 cm | ME-4704-E (+4) | $1,795.00 | Available | 43.2 × 38.0 × 27.9 cm |
Neuroscience
Evaluating cognitive deficits in transgenic mouse models of neurodegenerative diseases by measuring problem-solving latency and learning curves over repeated trials.
Behavioral Pharmacology
Assessing cognitive enhancement or impairment effects of novel compounds by comparing escape latencies before and after drug administration.
Learning and Memory
Investigating executive function and cognitive flexibility by analyzing trial-to-trial performance improvements and strategy adaptation in maze navigation.
Anxiety and Depression
Measuring cognitive symptoms associated with depression models through assessment of problem-solving motivation and task persistence.
Aging Research
Characterizing age-related cognitive decline by comparing puzzle-solving performance between young and aged animal cohorts.
Neurodegeneration
Monitoring progressive cognitive impairment in disease progression studies through longitudinal puzzle box performance assessment.
Practical Tips
Calibration
Verify underpass dimensions allow comfortable animal passage without becoming trapped by testing with representative animals before beginning experiments.
Why: Inappropriate sizing can create welfare issues or confound cognitive measurements with physical limitations.
Maintenance
Clean apparatus thoroughly with ethanol between subjects and allow complete drying to eliminate olfactory cues.
Why: Residual scent marks can provide navigation cues that compromise cognitive assessment validity.
Best Practices
Standardize lighting intensity and room conditions across all testing sessions using light meter measurements.
Why: Consistent environmental conditions ensure reliable escape motivation and enable valid comparison across animals and time points.
Data Quality
Record both successful and failed trials with predetermined maximum latency cutoffs to prevent indefinite testing periods.
Why: Ceiling effects provide important information about cognitive limitations while maintaining standardized protocols.
Troubleshooting
If animals show no exploration behavior, verify start zone lighting intensity and check for external distractions that might override natural motivation.
Why: Insufficient environmental contrast or competing stimuli can eliminate the escape motivation necessary for task engagement.
Safety
Monitor animals continuously during trials to ensure they do not become trapped or show signs of excessive stress.
Why: Real-time observation allows immediate intervention if navigation difficulties arise or welfare concerns develop.
Best Practices
Conduct habituation sessions to familiarize animals with apparatus handling and environmental conditions before data collection.
Why: Reduced stress from handling and novel environment exposure improves cognitive performance measurement accuracy.
Data Quality
Video record trials for later analysis of exploration patterns and behavioral strategies beyond simple latency measurement.
Why: Detailed behavioral analysis provides insight into cognitive processes and problem-solving approaches that supplement latency data.
Setup Guide
Unpack and Inspect Components
Remove all apparatus components from packaging and verify presence of start zone, goal compartment, underpass section, and covers. Check for damage during shipping.
Assemble Apparatus Structure
Connect the start zone, underpass, and goal compartment according to assembly instructions. Ensure all joints are secure and the underpass entrance is properly concealed from the start position.
Install Lighting System
Position bright illumination over the start zone to create aversive lighting conditions. Verify the goal compartment remains dark when covered.
Configure Recording Setup
Position video camera or timing equipment to monitor the start zone and track animal movement. Test visibility of the underpass entrance location.
Calibrate Dimensions
Verify underpass dimensions match species requirements and confirm animals can comfortably navigate the passage without becoming trapped.
Conduct Habituation Trial
Place a test animal in the apparatus to verify proper escape route function and timing measurement accuracy before beginning experimental protocols.
Establish Cleaning Protocol
Clean apparatus with appropriate disinfectant between subjects to eliminate olfactory cues that could influence subsequent animal performance.
What’s in the Box
- Start zone compartment (typical)
- Goal zone compartment with removable cover (typical)
- Underpass section (typical)
- Assembly hardware and connectors (typical)
- Storage components (confirmed)
- Assembly instructions (typical)
Warranty
ConductScience provides a 1-year manufacturer warranty covering defects in materials and workmanship, with technical support for setup and operational questions.
Compliance
IACUC Protocol RequirementsSupports behavioral testing protocols requiring institutional review for animal welfare and experimental design approval
NIH Guide for Care and Use of Laboratory AnimalsCommonly used in research environments governed by federal guidelines for humane animal research practices
ARRIVE GuidelinesFacilitates standardized reporting of animal research methodology and behavioral outcome measures
References
Background reading relevant to this product:
1.Nada M.‐B. Ben Abdallah et al. (2010) “The puzzle box as a simple and efficient behavioral test for exploring impairments of general cognition and executive functions in mouse models of schizophrenia” Experimental Neurology doi:10.1016/j.expneurol.2010.09.008
2.Angela M. O'Connor et al. (2014) “The Use of the Puzzle Box as a Means of Assessing the Efficacy of Environmental Enrichment” Journal of Visualized Experiments doi:10.3791/52225
3.Paul Chance (1999) “THORNDIKE'S PUZZLE BOXES AND THE ORIGINS OF THE EXPERIMENTAL ANALYSIS OF BEHAVIOR” Journal of the Experimental Analysis of Behavior doi:10.1901/jeab.1999.72-433
4.John C. Burnham (1972) “Thorndike's puzzle boxes” Journal of the History of the Behavioral Sciences doi:10.1002/1520-6696(197204)8:2<159::aid-jhbs2300080202>3.0.co;2-p
Q
What is the Puzzle Box?
A
The Puzzle Box is a behavioral paradigm that assesses problem-solving ability, cognitive flexibility, and executive function in rodents through a series of progressively more difficult obstacles.
Q
How does the Puzzle Box work?
A
Animals must navigate through a series of barriers of increasing complexity to reach a goal compartment. Obstacles progress from simple doorways to blocked passages requiring digging, plug removal, or object manipulation.
Q
What research applications use the Puzzle Box?
A
The Puzzle Box is used to study executive function, cognitive flexibility, and problem-solving in autism, schizophrenia, and traumatic brain injury models. It provides unique insight into higher-order cognitive abilities beyond spatial memory.
Have a question about this product?
Track rodents with ConductVision
ConductVision is our video-tracking software. Record your sessions on video, and it scores standard rodent tests, such as those listed below.
Examples of tests it scores
To check whether ConductVision scores your protocol in this apparatus, ask in your quote request.
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Accessories
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§ 1
Introduction
The Puzzle Box is a choice and decision assay built around problem solving, executive function, and rule-shift performance across escalating task demands. Interpretable data depend on matching the apparatus geometry, subject species, trial structure, and scoring rules to the behavioral construct under study. 1
Obstacle-solving protocols depend on stable geometry, consistent trial timing, and pre-defined scoring rules. Without those controls, successful trials can be shifted by motivation, locomotion, light level, odor, cue salience, or handling rather than the intended behavioral construct. 1
This methods section summarizes setup, endpoint definitions, common confounds, sample output, adjacent assays, and reporting details needed to evaluate Puzzle Box results alongside the product specifications. 1
§ 2
Methods
2.1 Procedure
Obstacle-solving with standardized setup, trial timing, and endpoint extraction.
Pre-test setup
- 1.Define construct: Pre-register whether the study uses Puzzle Box for choice and decision behavior, screening, cohort comparison, or apparatus validation.
- 2.Calibrate apparatus: Verify goal-directed chamber with removable obstacles and escape compartment, visibility, lighting, surface condition, cue placement, and camera field of view before animals enter the room.
- 3.Set scoring rules: Define successful trials, omissions, exclusions, latency cutoffs, and event thresholds before acquisition starts.
- 4.Control carryover: Use consistent cleaning, handling, acclimation, and inter-trial timing so odor, stress, and fatigue do not become hidden treatment variables.
Trial sequence
- 1.Start trial: Place the subject at the protocol-defined start location and begin synchronized video or event logging.
- 2.Record behavior: Capture successful trials, path order, latency, dwell time, and relevant zone or arm events throughout the trial.1
- 3.Apply endpoint rules: Score only committed entries or events that meet the pre-defined body-position and timing criteria.
- 4.End and reset: Stop at the maximum duration, completion criterion, or humane endpoint, then clean and reset the apparatus.
- 5.Export QC: Review tracking loss, outlier latency, immobility, omissions, and apparatus notes before group-level analysis.
Critical methodological constraints
- Motivation. Document motivation because it can shift successful trials independent of the intended construct.
- Motor impairment. Keep motor impairment stable across cohorts and sessions.
- Prior exposure. Audit prior exposure before interpreting group differences.
- Obstacle difficulty. Report obstacle difficulty when it changes engagement, exploration, or measurable trial completion.
- Stress response. Flag stress response during QA because it often explains apparent assay failure.2
2.2 Measurement & Analysis
Core Puzzle Box endpoints for behavioral interpretation and apparatus quality control.
Successful trials
Executive task performance
Successful trials is the primary endpoint for this page and should be paired with latency and quality-control flags.1
Escape latency
Latency and initiation
Escape latency helps distinguish task performance from motivation, freezing, fatigue, or handling effects.
Obstacle strategy
Spatial or zone strategy
Obstacle strategy captures how the subject solved the task, not only whether it reached the endpoint.
Omissions
Engagement control
Omissions identifies omissions, low exploration, sensor dropouts, or species-specific non-response.
Experimenter interventions
Quality-control flag
Experimenter interventions should be reviewed before exporting final group summaries.
+ Additional metrics: trial duration, zone dwell, event count, path efficiency, tracking confidence, exclusions, and session-level notes.
2.3 successful trials ratio (analysis)
A compact percentage summary for Puzzle Box output.
§ 3
Results
3.1 Sample apparatus output
Representative Puzzle Box output for methods review and endpoint interpretation.
§ 4
Discussion
Limitations of the paradigm, methodological caveats, and current directions.
4.1 Common confounds
Variables that can shift Puzzle Box results apart from the effect under study.
Motivation
Motivation can change apparent Puzzle Box performance without reflecting the intended behavioral construct.
Motor impairment
Motor impairment can change apparent Puzzle Box performance without reflecting the intended behavioral construct.
Prior exposure
Prior exposure can change apparent Puzzle Box performance without reflecting the intended behavioral construct.
Obstacle difficulty
Obstacle difficulty can change apparent Puzzle Box performance without reflecting the intended behavioral construct.
Stress response
Stress response can change apparent Puzzle Box performance without reflecting the intended behavioral construct.
4.2 Construct validity caveats
Puzzle Box is strongest when endpoint definitions, apparatus settings, and exclusion rules are specified before testing. Treat a single summary metric as a screening signal, then confirm interpretation with latency, engagement, comparator assays, and quality-control review. 1
4.3 Special considerations
When should I choose Puzzle Box?
Choose Puzzle Box when the research question matches problem solving, executive function, and rule-shift performance across escalating task demands. and the lab can control motivation, motor impairment, and trial timing.
What setup variables should be specified before testing?
Specify species, cohort size, apparatus dimensions, lighting, tracking method, automation level, cleaning workflow, endpoint definitions, and exclusion criteria before data collection begins.
What makes the data interpretable?
Interpretation is strongest when the apparatus configuration, trial timing, scoring thresholds, confound controls, and comparator assays are documented together with the primary endpoint.
4.4 Current directions
Quarterly editorial review of emerging Puzzle Box methodology. Q2 2026
Methods
Endpoint standardization
Define successful trials, latency, exclusions, and engagement flags before comparing cohorts.
Emerging
Automated scoring
Camera and event-log workflows can reduce observer burden and improve consistency when zone definitions and event thresholds are validated.
Methods
Comparator batteries
Puzzle Box should link to adjacent maze, motor, or motivation assays when interpretation depends on controls.
Emerging
Integrated method reporting
Apparatus dimensions, protocol fit, tracking compatibility, and endpoint definitions should be reported together so results are easier to reproduce.
§ 5
Background references
10 selected methods and validation studies of the Puzzle Box, from any lab.
- Dudchenko PA. An overview of the tasks used to test working memory in rodents. Neurosci Biobehav Rev. 2004;28(7):699-709. doi:10.1016/j.neubiorev.2004.09.002
- Shoji H, et al. Comprehensive behavioral test battery for mice. Curr Protoc Mouse Biol. 2012;2:153-187. Find source
- Vorhees CV, Williams MT. Assessing spatial learning and memory in rodents. ILAR J. 2014;55(2):310-332. Find source
- Lalonde R. The neurobiological basis of spontaneous alternation. Neurosci Biobehav Rev. 2002;26(1):91-104. doi:10.1016/S0149-7634(01)00041-0
- Walf AA, Frye CA. The use of the elevated plus maze as an assay of anxiety-related behavior in rodents. Nat Protoc. 2007;2(2):322-328. doi:10.1038/nprot.2007.44
- Pellow S, Chopin P, File SE, Briley M. Validation of open:closed arm entries in an elevated plus-maze as a measure of anxiety in the rat. J Neurosci Methods. 1985;14(3):149-167. doi:10.1016/0165-0270(85)90031-7
- Crawley JN, Goodwin FK. Preliminary report of a simple animal behavior model for the anxiolytic effects of benzodiazepines. Pharmacol Biochem Behav. 1980;13(2):167-170. doi:10.1016/0091-3057(80)90067-2
- File SE, Wardill AG. Validity of head-dipping as a measure of exploration in a modified hole-board. Psychopharmacologia. 1975;44(1):53-59. Find source
- Walsh RN, Cummins RA. The Open-Field Test: a critical review. Psychol Bull. 1976;83(3):482-504. doi:10.1037/0033-2909.83.3.482
- Brown RE, Corey SC, Moore AK. Differences in measures of exploration and fear in MHC-congenic C57BL/6J and B6-H-2K mice. Behav Genet. 1999;29(4):263-271. Find source
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