Centre Zone Time
Duration in the central region indicating reduced anxiety
Track locomotion, anxiety, and exploration in a novel open arena.
Metrics automatically extracted by ConductVision.
Duration in the central region indicating reduced anxiety
Thigmotaxis — time near arena walls
Duration in corners reflecting heightened anxiety
Number of entries into the central zone
Cumulative path length as locomotion index
Total time spent immobile during the session
Frequency of upright exploratory postures (vertical activity)
Self-grooming episodes as displacement behavior
Mean movement speed across the session
Clockwise vs counterclockwise turning bias for lateralization
Number of discrete movement bouts separated by pauses
Decline in activity across time bins within the session
Frequency of crossings between center, intermediate, and wall zones
The Open Field test evaluates exploration, anxiety-like behavior, and general locomotor activity by placing a rodent in a novel open arena. Researchers observe the conflict between curiosity-driven exploration and anxiety-induced avoidance of exposed central areas — thigmotaxis.
ConductVision tracks over 60 measures including customizable zone definitions. The system detects immobility, movement transitions, directional orientation, and rearing via integrated photo-beam arrays. Multi-apparatus configurations enable simultaneous tracking of multiple subjects.
| Parameter | Description | Default |
|---|---|---|
| Arena Size (Mouse) | Square or circular arena dimensions | 40 × 40 cm |
| Arena Size (Rat) | Square or circular arena dimensions | 100 × 100 cm |
| Wall Height | Arena wall height preventing escape | 40 cm (mouse) / 50 cm (rat) |
| Test Duration | Standard session length | 5–10 min |
| Light Intensity | Overhead illumination level | 200–300 lux |
| Center Zone | Central region definition for thigmotaxis scoring | Inner 25% of area |
| Wall Zone | Peripheral zone width along arena walls | Outer 8 cm |
| Start Position | Animal placement at trial start | Arena center or corner |
| Habituation | Room acclimation before testing | 30–60 min |
| Cleaning | Surface cleaning between subjects | 70% ethanol |
| Time Bins | Temporal resolution for habituation analysis | 1 min bins |
Increased anxiety-like behavior — thigmotaxis elevated in BALB/c strain, chronic stress models, and after anxiogenic drugs (caffeine, FG-7142).
Hyperlocomotion — seen with psychostimulants (amphetamine, cocaine), dopamine agonists, or mania-like states in DAT knockouts.
Sedation or motor impairment — common with antipsychotics (haloperidol), high-dose benzodiazepines, or neurodegenerative motor deficits.
Enhanced vertical exploration — novelty-driven or psychostimulant effect; rearing is suppressed by sedatives and anxiogenics.
Impaired within-session habituation — failure to reduce exploration over time indicates cognitive or attentional deficit.
Depression-like or catatonic state — increased immobility may reflect behavioral despair or catalepsy from D2 receptor blockade.
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Assess anxiety through light vs. dark compartment preference with IR tracking.
Evaluate working memory and decision-making via spontaneous alternation.
Sensitive ethological readout for anxiety and risk assessment in rodents.
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