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Hole Board
SKU CS-958386
$1,990.00
IncludesStandard care
Standardized behavioral testing apparatus for assessing exploratory behavior, neophobia, and anxiety responses in mice and rats through quantification of head-dipping activity.
CE MarkedBAA available
Scientist guidance
Louise Corscadden, PhD
Director of Science · ConductScience
Ask Louise about Hole Board fit, setup, configuration, or quote prep.
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Key Specifications
Full details →- Model fit
- Mouse, Rat
- SKU family
- CS-958386
- Sizing
- Mouse: Diameter holes 3 cm; Rat: Diameter holes 5 cm
- Ordering
- Online checkout and quote request available
- Category
- Behavioral Mazes
- Build notes
- Confirm accessories, station layout, and support needs before purchase
The Hole Board test apparatus is a standardized behavioral assessment tool used to evaluate exploratory behavior, neophobia, and anxiety-related responses in rodents. This apparatus consists of a testing chamber with multiple holes in the floor, allowing researchers to quantify head-dipping behavior as a measure of exploratory activity and emotional state.
Available in species-specific configurations with 3cm diameter holes for mice and 5cm diameter holes for rats, the apparatus features removable walls for flexible testing protocols and easy subject handling. The odor-free construction material enables reliable inter-session testing by preventing olfactory cues that could confound behavioral measurements. The design facilitates standard ethanol-based decontamination procedures between subjects to maintain experimental hygiene.
How It Works
The hole-board test relies on the natural exploratory tendencies of rodents to investigate novel environments and openings. When placed on the apparatus, subjects exhibit head-dipping behavior into the holes, which represents a conflict between approach motivation (exploration) and avoidance motivation (fear of the unknown). The frequency, duration, and pattern of head-dipping events provide quantitative measures of the subject's emotional state and exploratory drive.
Head-dipping behavior is operationally defined as the insertion of the head and shoulders into a hole to a depth where both eyes are below the plane of the board surface. This stereotyped behavior can be reliably scored either through direct observation or automated video analysis systems. The apparatus design standardizes the stimulus conditions, ensuring reproducible measurements across different laboratories and experimental sessions.
The removable wall configuration allows researchers to modify the testing environment complexity and implement various protocol modifications, such as partial barrier placement or multi-session habituation paradigms. The species-specific hole diameters ensure appropriate scaling for the natural head size and exploratory postures of mice versus rats.
Features & Benefits
Species-specific hole dimensions
Optimized 3cm holes for mice and 5cm holes for rats ensure appropriate scaling for natural head-dipping behaviors and reliable behavioral quantification.
Removable wall system
Enables flexible protocol modifications, easy subject placement and removal, and simplified cleaning procedures between testing sessions.
Odor-free construction material
Eliminates olfactory confounds that could influence exploratory behavior, ensuring that behavioral responses reflect genuine anxiety or exploration rather than scent-driven responses.
70% ethanol compatibility
Supports standard laboratory decontamination protocols to prevent cross-contamination between subjects and maintain experimental hygiene standards.
Storage-included design
Provides organized storage solution for apparatus components, protecting equipment integrity and facilitating laboratory space management.
Assembly-required configuration
Allows for compact shipping and customizable setup arrangements while ensuring researchers understand the apparatus construction for troubleshooting and maintenance.
Sizes by model
| Measurement | Mouse | Rat |
|---|---|---|
| Diameter holes | 3 cm | 5 cm |
- Removable Walls
- Easy clean with 70% Ethanol
- Mouse: 40cm x 40cm x 35cm (height)
- Mouse: Odor-Free
- Rat: 60cm x 60cm x 45 cm (height)
- Rat: Odor Free
Shipping weight
- 6.06 lb
Shipping box
- L: 65.0 cm
- W: 36.0 cm
- H: 27.0 cm
| Feature | This Product | Typical Alternative | Advantage |
|---|---|---|---|
| Hole Diameter Options | Species-specific sizing with 3cm holes for mice and 5cm holes for rats | Generic sizing that may not optimize for species-specific behaviors | Ensures appropriate scaling for natural head-dipping postures and reliable behavioral quantification across species. |
| Wall Configuration | Removable walls for flexible protocol modifications | Fixed wall designs limit experimental versatility | Enables custom protocol development and simplified subject handling procedures. |
| Material Properties | Odor-free construction compatible with 70% ethanol cleaning | Materials may retain odors or require specialized cleaning agents | Prevents olfactory confounds and supports standard laboratory decontamination protocols. |
| Storage Solution | Integrated storage components included | Basic apparatus without organization system | Protects equipment integrity and facilitates efficient laboratory space management. |
This hole board apparatus provides species-optimized hole dimensions, removable wall flexibility, and odor-free construction with integrated storage. The design prioritizes experimental reliability through standardized dimensions and decontamination compatibility while offering protocol flexibility through modular wall configuration.
| Model | Size | SKU | Listed price | Status | Shipping box |
|---|---|---|---|---|---|
| Mouse | Diameter holes 3 cm | CS-958386 (+1) | $1,695.00 | Available | 65.0 x 36.0 x 27.0 cm |
| Rat | Diameter holes 5 cm | CS-958386 (+1) | $1,990.00 | Available | 65.0 x 36.0 x 27.0 cm |
Neuroscience
Assessing baseline exploratory behavior and anxiety-like responses in transgenic mouse models of neurological disorders through quantification of head-dipping frequency and duration.
Behavioral Pharmacology
Evaluating anxiolytic and anxiogenic drug effects by comparing pre- and post-treatment hole-board exploration patterns in rodent subjects.
Learning and Memory
Measuring neophobia responses and spatial recognition memory by analyzing changes in exploratory behavior across repeated hole-board exposures.
Anxiety and Depression
Screening for anxiety-like phenotypes in rodent models by quantifying head-dipping behavior, which correlates inversely with anxiety levels.
Addiction Research
Assessing withdrawal-induced anxiety and altered exploratory responses in substance dependence models through modified hole-board protocols.
Aging Research
Documenting age-related changes in exploratory behavior and risk assessment by comparing hole-board performance across different age cohorts.
Practical Tips
Calibration
Establish inter-rater reliability by having multiple observers score the same video recordings until achieving >90% agreement on head-dipping events.
Why: Consistent scoring criteria are essential for reproducible behavioral measurements across different experimenters and sessions.
Maintenance
Inspect hole edges regularly for chips or rough spots that could influence exploratory behavior or cause injury to subjects.
Why: Damaged holes can create inconsistent tactile stimuli that may bias behavioral responses or pose safety risks.
Best Practices
Allow subjects to acclimate to the testing room for 30-60 minutes before behavioral assessment to minimize handling stress effects.
Why: Acute stress from transport and handling can suppress exploratory behavior and confound anxiety-related measurements.
Troubleshooting
If subjects show excessive freezing behavior, verify that lighting levels are appropriate and external noise sources are minimized.
Why: Overly bright lighting or acoustic distractions can induce defensive behaviors that override normal exploratory responses.
Data Quality
Record both the total number of head dips and the number of different holes explored to capture both activity level and spatial distribution of exploration.
Why: These complementary measures provide richer behavioral profiles than simple dip counts and can reveal different aspects of exploratory strategies.
Safety
Ensure complete ethanol evaporation before introducing subjects to prevent respiratory irritation or altered behavior from residual vapors.
Why: Ethanol vapors can cause respiratory distress and may alter behavioral responses, compromising both animal welfare and data validity.
Best Practices
Consider counterbalancing hole positions in your experimental design if testing multiple groups to control for potential spatial preferences.
Why: Some hole locations may be inherently more or less attractive due to proximity to walls or corners, which could bias group comparisons.
Data Quality
Establish minimum head-dipping duration criteria (typically 1-2 seconds) to distinguish genuine exploratory behavior from brief head movements.
Why: Brief head orientations toward holes may not represent true investigative behavior and can inflate exploration scores artificially.
Setup Guide
Unpack and Inspect Components
Remove the hole board base, wall panels, and any included storage components from packaging. Verify all parts are present and undamaged.
Assemble Testing Chamber
Install the removable walls around the hole board base according to the provided assembly instructions, ensuring secure connections at all joints.
Position in Testing Environment
Place the assembled apparatus on a stable, level surface in a quiet testing room with consistent lighting conditions. Ensure the testing area is free from external distractions.
Calibrate Recording Equipment
Set up video recording equipment or position observation stations to provide clear visualization of all holes for accurate behavioral scoring.
Establish Baseline Conditions
Allow the apparatus to equilibrate to room temperature and conduct a trial run without subjects to verify proper assembly and recording setup.
Implement Cleaning Protocol
Clean all surfaces with 70% ethanol and allow to air dry completely before introducing the first subject to establish odor-neutral conditions.
Begin Testing Sessions
Introduce subjects gently to the center of the apparatus and initiate timing and recording procedures according to your experimental protocol.
What’s in the Box
- Hole board base platform with species-appropriate holes
- Removable wall panels (typical)
- Assembly hardware and connectors (typical)
- Storage components
- Assembly instructions and user manual (typical)
Warranty
ConductScience provides a comprehensive one-year manufacturer warranty covering defects in materials and workmanship, with technical support available for setup and protocol optimization questions.
Compliance
ARRIVE Guidelines 2.0Commonly used in behavioral research studies that must document experimental design and animal handling procedures according to these reporting standards.
NIH Guide for Care and Use of Laboratory AnimalsSupports behavioral assessment protocols conducted under institutional animal care and use committee oversight in research facilities.
OECD Test GuidelinesUsed in neurotoxicity and behavioral toxicity assessments that may be conducted according to OECD testing framework requirements.
References
Background reading relevant to this product:
1.Sandra E. File et al. (1975) “Validity of head-dipping as a measure of exploration in a modified hole-board” Psychopharmacology doi:10.1007/bf00421184
2.Hiroshi Takeda et al. (1998) “Changes in head-dipping behavior in the hole-board test reflect the anxiogenic and/or anxiolytic state in mice” European Journal of Pharmacology doi:10.1016/s0014-2999(98)00223-4
3.Sandra E. File et al. (1975) “The reliability of the hole-board apparatus” Psychopharmacology doi:10.1007/bf00421183
4.Frauke Ohl et al. (2001) “The modified hole board as a differential screen for behavior in rodents” Behavior Research Methods, Instruments, & Computers doi:10.3758/bf03195393
5.Gillian R. Brown et al. (2008) “The exploratory behaviour of rats in the hole-board apparatus: Is head-dipping a valid measure of neophilia?” Behavioural Processes doi:10.1016/j.beproc.2008.02.019
Q
What is the operational definition of head-dipping behavior for scoring?
A
Head-dipping is typically defined as insertion of the head and shoulders into a hole to a depth where both eyes are below the plane of the board surface. Duration, frequency, and latency to first dip are commonly measured parameters.
Q
How do I determine the appropriate testing duration for my experimental protocol?
A
Standard testing sessions range from 5-15 minutes, with 10 minutes being most common. Pilot studies should establish when exploratory activity plateaus in your specific animal population and housing conditions.
Q
Can the apparatus accommodate both automated and manual behavioral scoring?
A
Yes, the open design allows for both direct observation scoring and overhead video recording for automated analysis. Ensure adequate lighting and camera positioning for reliable automated detection of head-dipping events.
Q
What cleaning protocol is recommended between subjects?
A
Clean all surfaces with 70% ethanol between subjects and allow complete air drying. This eliminates olfactory cues that could influence subsequent subjects' exploratory behavior patterns.
Q
How does hole-board data correlate with other anxiety measures?
A
Head-dipping frequency typically correlates negatively with anxiety measures from elevated plus maze and open field tests. Reduced exploration in the hole board often parallels increased anxiety-like behavior in other assays.
Q
What environmental factors should be controlled during testing?
A
Maintain consistent lighting (typically 30-40 lux), temperature (20-22°C), humidity, and minimize external noise. Test at the same time of day to control for circadian effects on exploratory behavior.
Q
Can the apparatus be used for repeated testing of the same subjects?
A
Yes, but be aware that repeated exposure reduces novelty and may alter exploratory responses. Consider habituation protocols and inter-session intervals based on your research questions and expected memory effects.
Q
What statistical considerations apply to hole-board data analysis?
A
Data often requires transformation due to non-normal distributions. Consider Poisson regression for count data, and account for multiple comparisons if analyzing individual holes. Include sufficient sample sizes for adequate statistical power.
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Score this test with ConductVision
ConductVision is our video-tracking software. Record your sessions on video, and it reports the measures listed below.
What it measures
Hole Board Maze
- Total Head Dips
- Head Dip Duration
- Latency to First Dip
- Unique Holes Visited
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Use this apparatus with
The complete Hole Board workflow
Track behavior
Automate head dips, latency, zone occupancy, path order, and event timing for Hole Board studies.
ConductVision Hole Board ->Run protocol
Stepwise exploratory head-dip setup, trial timing, exclusion rules, and reporting checkpoints.
ConductMaze Hole Board Protocol ->Analyze output
No exact calculator page is currently published for Hole Board; keep this as a roadmap gap rather than linking to a guessed URL.
Supporting page not yet builtConfiguration considerations
Common Hole Board setup decisions
Use these notes to scope species, cohort, tracking, and automation needs. Only verified product or support routes are linked from this section.
This productStandard
Hole Board
Open arena floor with evenly spaced exploratory holes
head-dip exploration, neophobia, directed search, and habituation profiling.
Quote
Request QuoteBuyableScaled option
Hole Board Species Variant
Mouse, rat, aquatic, insect, or large-animal scaling as appropriate
Use species-specific dimensions and lighting so the apparatus tests the intended construct instead of body size, visibility, or handling tolerance.
Quote
View options ->SpecialtyAutomation
Hole Board With Tracking
Camera, gates, sensors, cue control, or event logging as required
Best when the protocol needs reproducible timing, high-throughput scoring, or defensible endpoint extraction across cohorts.
Quote
Configure tracking ->§ 1
Introduction
The Hole Board is a choice and decision assay built around head-dip exploration, neophobia, directed search, and habituation profiling. Interpretable data depend on matching the apparatus geometry, subject species, trial structure, and scoring rules to the behavioral construct under study. 1
Exploratory head-dip protocols depend on stable geometry, consistent trial timing, and pre-defined scoring rules. Without those controls, head dips 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 Hole Board results alongside the product specifications. 1
§ 2
Methods
2.1 Procedure
Exploratory head-dip with standardized setup, trial timing, and endpoint extraction.
Pre-test setup
- 1.Define construct: Pre-register whether the study uses Hole Board for choice and decision behavior, screening, cohort comparison, or apparatus validation.
- 2.Calibrate apparatus: Verify open arena floor with evenly spaced exploratory holes, visibility, lighting, surface condition, cue placement, and camera field of view before animals enter the room.
- 3.Set scoring rules: Define head dips, 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 head dips, 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
- Hole odor. Document hole odor because it can shift head dips independent of the intended construct.
- Illumination. Keep illumination stable across cohorts and sessions.
- Anxiety-like suppression. Audit anxiety-like suppression before interpreting group differences.
- Locomotor activity. Report locomotor activity when it changes engagement, exploration, or measurable trial completion.
- Camera angle. Flag camera angle during QA because it often explains apparent assay failure.2
2.2 Measurement & Analysis
Core Hole Board endpoints for behavioral interpretation and apparatus quality control.
Head dips
Exploration endpoint
Head dips is the primary endpoint for this page and should be paired with latency and quality-control flags.1
First-dip latency
Latency and initiation
First-dip latency helps distinguish task performance from motivation, freezing, fatigue, or handling effects.
Hole sequence
Spatial or zone strategy
Hole sequence captures how the subject solved the task, not only whether it reached the endpoint.
Rearing count
Engagement control
Rearing count identifies omissions, low exploration, sensor dropouts, or species-specific non-response.
Missed hole detections
Quality-control flag
Missed hole detections 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 head dips ratio (analysis)
A compact percentage summary for Hole Board output.
§ 3
Results
PubMed publication counts, sample apparatus output, and recent papers from a dated PubMed snapshot.
3.1 Publication trends
PubMed volume and co-occurring behavioral methods for Hole Board studies.
3.2 Sample apparatus output
Representative Hole Board output for methods review and endpoint interpretation.
3.3 Recent findings (PubMed)
- Sep 2026PMID: 42734841
HPLC-characterized phenolics from Acer oblongifolium attenuate inflammation, pain, and CNS-related disturbances: docking, edema, nociception, and behavioural studies.
Ismail H, Hadri SH, Rashid U, et al.. Inflammopharmacology. 2026 Sep 14.
Phenolic compounds of plant origin are promising alternatives, but the potential of Acer oblongifolium and its components has not been studied.
- Sep 2026PMID: 42727725
Gi-DREADD-mediated modulation of astrocyte in the dorsal hippocampus improves working and hippocampus-dependent memory in the unilateral 6-hydroxydopamine lesioned rats.
Zhang Z, Chen Y, Liang Y, et al.. Brain Res. 2026 Sep 11.
Cognitive impairment is one of the common non-motor symptoms of Parkinson's disease (PD). Although the mechanism is still unclear, emerging research suggests that the dorsal hippocampus (dHIPP) and astrocyte (AS) may be involved in the cognitive dysfunction in PD.
- Sep 2026PMID: 42684002
Neurobehavioral Evaluation of Renin-Angiotensin System Modulators in an MPTP-Induced Model of Parkinson's Disease in Swiss Albino Mice.
Prakash KG, Saniya K, Jaju S, et al.. Ann Afr Med. 2026 Sep 2.
Parkinson's disease (PD) is a progressive neurodegenerative disorder characterized by motor and nonmotor deficits. Emerging evidence suggests a role of the renin-angiotensin system (RAS) in neurodegeneration, making it a potential therapeutic target.
- Sep 2026PMID: 42631823
In vivo and In Silico Assessment of Acampe papillosa (Lindl.) Lindl. Seed Extract: A Multi-Pharmacological Approach.
Nujhat N, Meem JN, Tasmia S, et al.. Cell Biochem Biophys. 2026 Sep.
Acampe papillosa (Lindl.) Lindl., an epiphytic orchid, has been traditionally utilized in ethnomedicine for the management of pyrexia, otalgia, rheumatism, and neuralgia. This work intends to figure out the in vivo neuropharmacological, antinociceptive, and antipyretic potentials of the methanolic extract of A.
- Aug 2026PMID: 42534351
Pharmacological Assessment of Calamus guruba Methanolic Extract: Multitarget Effects on Diabetes, Inflammation, Anxiety, and Depression.
Uddin M, Shorna TA, Suma KJ, et al.. Food Sci Nutr. 2026 Aug.
Calamus guruba Buch.-Ham. (Family: Arecaceae) is a traditionally valued medicinal plant recognized for its wide range of therapeutic applications. This study was designed to evaluate the antidiabetic, anti-inflammatory, anxiolytic, and antidepressant properties of the methanolic extract of C. guruba (MECG).
- Aug 2026PMID: 42002185
L-NAME bidirectionally modulates the behavioral consequences of acute sleep restriction in chronically stressed mice: A hole-board analysis.
Ebrahimi-Ghiri M, Pirouti P, Zarrindast MR. Physiol Behav. 2026 Aug 1.
This study investigated the mediating role of the nitric oxide (NO) system in the behavioral interplay between chronic stress and acute sleep restriction.
§ 4
Discussion
Limitations of the paradigm, methodological caveats, and current directions.
4.1 Common confounds
Variables that can shift Hole Board results apart from the effect under study.
Hole odor
Hole odor can change apparent Hole Board performance without reflecting the intended behavioral construct. Control it in setup and report it in methods.
Illumination
Illumination can change apparent Hole Board performance without reflecting the intended behavioral construct. Control it in setup and report it in methods.
Anxiety-like suppression
Anxiety-like suppression can change apparent Hole Board performance without reflecting the intended behavioral construct. Control it in setup and report it in methods.
Locomotor activity
Locomotor activity can change apparent Hole Board performance without reflecting the intended behavioral construct. Control it in setup and report it in methods.
Camera angle
Camera angle can change apparent Hole Board performance without reflecting the intended behavioral construct. Control it in setup and report it in methods.
4.2 Construct validity caveats
Hole Board 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 Hole Board?
Choose Hole Board when the research question matches head-dip exploration, neophobia, directed search, and habituation profiling. and the lab can control hole odor, illumination, 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 Hole Board methodology. Q2 2026
Methods
Endpoint standardization
Define head dips, 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
Hole Board 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
References
10 selected methods and validation references for Hole Board.
- 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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