Marble Burying Scorer

Score percent marbles buried, group SEM, and CSV export for repetitive and anxiety-like behavior batteries.

Percent BuriedGroup SEMCSV Export

Marble burying scoring table

Enter total marbles and the number scored as at least two-thirds buried at the end of the session. Group summaries report percent buried with SEM.

AnimalGroupTotal marblesBuriedSession (min)Buried %Remove
40.0%
45.0%
75.0%
70.0%
AnimalGroupBuriedTotalBuried %
WT-1WT82040.00
WT-2WT92045.00
Model-1Model152075.00
Model-2Model142070.00

Group percent buried

  • Calculate percent marbles buried from endpoint scoring
  • Compare genotype or treatment cohorts with group SEM
  • Standardize the at least two-thirds buried criterion
  • Export cage-level or animal-level marble burying results
  • Pair repetitive/anxiety-like endpoints with EPM and light-dark assays

Don't use for

  • Continuous digging duration from video ethograms
  • Nestlet shredding or nest quality scoring
  • Forced burying or defensive burying shock-probe protocols

Resources

  • Total marble count and layout fixed across cages
  • Bedding type, depth, and compaction documented
  • At least two-thirds buried criterion selected before scoring
  • Session duration fixed within cohort
  • Cage lighting and room conditions matched
  • Observer blinded to treatment or genotype when possible

Marble Burying Assay

The marble burying assay places a fixed grid of marbles on bedding and counts how many are covered after a set period. It is simple to run and sensitive to bedding, strain, and drug effects.

Metrics and Math

The scorer calculates percent buried as buried marbles / total marbles x 100. Group summaries are calculated from animal-level percentages and reported as mean plus SEM.

Design Notes

Keep marble count, layout, bedding depth, cage size, lighting, session duration, and scoring criterion fixed across groups. Score cages blind to treatment when possible.

Frequently Asked Questions