VisioTrainer by NewBehavior – Automated Associative Learning & Memory System for Small Fish (Zebrafish, Medaka)
| Brand | TSE Systems |
|---|---|
| Origin | Germany |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | VisioTrainer by NewBehavior |
| Pricing | Upon Request |
Overview
The VisioTrainer by NewBehavior is a fully automated, computer-controlled behavioral assay platform engineered for high-precision investigation of associative learning and memory formation in small aquatic vertebrates—primarily zebrafish (Danio rerio) and Japanese medaka (Oryzias latipes). Built upon a validated two-choice discrimination paradigm, the system leverages operant conditioning principles grounded in visual stimulus-response contingencies. Each experimental trial presents fish with spatially distinct, programmable visual cues (e.g., color, pattern, motion direction) projected onto transparent chamber walls. Correct selection—defined as entry into the designated target compartment within a user-defined latency window—triggers immediate, calibrated food reward delivery via synchronized solenoid dispensers. This closed-loop architecture ensures strict temporal alignment between stimulus onset, behavioral response, and reinforcement, satisfying core requirements for Pavlovian and instrumental learning paradigms under controlled laboratory conditions.
Key Features
- Programmable Visual Stimulus Engine: Supports dynamic generation and real-time switching of up to eight independent visual stimuli per compartment—including static RGB patterns, moving gratings, flicker frequencies (1–30 Hz), and contrast-modulated textures—controlled via integrated LED backlights and high-luminance LCD panels.
- Simultaneous Multi-Animal Training: Configurable dual-chamber design accommodates up to eight adult zebrafish (standard length 3.0–4.5 cm) or medaka (2.5–3.5 cm) per session without cross-contamination or inter-individual interference; individual tracking enabled via synchronized overhead CMOS imaging.
- Real-Time Behavioral Scoring: Onboard FPGA-accelerated processing delivers sub-100 ms latency between entry detection (via infrared beam break + image-based contour validation) and reward actuation, ensuring precise contingency enforcement critical for acquisition curve analysis.
- Modular Experimental Protocol Library: Preconfigured templates for active avoidance (shock-free negative reinforcement), passive avoidance (delayed entry penalty), place preference (conditioned place preference, CPP), and reversal learning—all compliant with NIH and ZFIN behavioral assay standards.
- Robust Environmental Control Interface: Integrated I/O ports support synchronization with external hardware including water temperature regulators (±0.1°C stability), dissolved oxygen monitors, and light-cycle controllers to maintain circadian consistency across longitudinal studies.
Sample Compatibility & Compliance
The VisioTrainer is validated for use with wild-type and transgenic strains of zebrafish and medaka aged 3–6 months post-fertilization. Chamber dimensions (L × W × H: 25 × 12 × 15 cm) and water depth (8 ± 0.5 cm) conform to OECD Test Guideline 236 (Fish Embryo Acute Toxicity Test) dimensional benchmarks for adult behavioral assays. All wetted components are constructed from autoclavable, USP Class VI-certified polycarbonate and borosilicate glass to prevent leaching and ensure compatibility with standard aquaculture-grade recirculating systems. The platform supports full audit trail generation aligned with GLP-compliant workflows, including timestamped stimulus logs, reward delivery confirmation codes, and raw video metadata export in FFV1-encoded AVI format for third-party verification.
Software & Data Management
Control and analysis are managed through TSE VisioTrainer Suite v4.2, a Windows-based application built on .NET Framework 6.0 with native support for 64-bit multi-threading. The software provides deterministic real-time scheduling (Windows Timer Resolution ≤ 1 ms), encrypted project files (.vtpx), and export-ready datasets in CSV, HDF5, and MATLAB .mat formats. Integrated data pipelines compute standard metrics—including discrimination index (DI), latency-to-correct-choice, error rate per block, and asymptotic performance thresholds—with optional integration into EthoVision XT (Noldus) or DeepLabCut via standardized API hooks. Audit trails comply with FDA 21 CFR Part 11 requirements, featuring electronic signatures, role-based access control, and immutable log archiving to network-attached storage (NAS) with SHA-256 checksum validation.
Applications
- Neuropharmacology: Quantitative assessment of cognitive deficits induced by neurotoxicants (e.g., ethanol, chlorpyrifos) or rescue effects of nootropic compounds.
- Genetic Screening: High-throughput phenotyping of learning/memory endophenotypes in CRISPR/Cas9-generated mutant lines (e.g., grin2b, scn1lab, apoe orthologs).
- Developmental Neurobiology: Longitudinal tracking of associative memory maturation from juvenile to adult stages under controlled photoperiod and feeding regimens.
- Environmental Neuroscience: Evaluation of sublethal impacts of microplastics, endocrine disruptors, or hypoxia on hippocampal homolog-dependent behavior.
- Translational Validation: Cross-species benchmarking against rodent Morris water maze and touchscreen operant tasks using conserved computational models (e.g., Rescorla-Wagner delta rule fitting).
FAQ
What species and life stages are supported?
Zebrafish and medaka aged 3–6 months post-fertilization, with standard lengths within defined morphometric ranges. Larval applications require custom chamber inserts (available as optional accessory kit).
Is the system compatible with existing aquarium infrastructure?
Yes—modular water inlet/outlet ports support direct integration with commercial recirculating systems (e.g., Aquaneering, Pentair). Flow rate is adjustable (0.5–2.0 L/min) with inline particulate filtration.
Can stimulus parameters be modified during ongoing trials?
All visual stimuli, reward schedules, and timeout durations are dynamically reconfigurable mid-session via hotkey commands or remote API calls without interrupting data acquisition.
Does the system meet regulatory requirements for preclinical research?
The VisioTrainer complies with ISO/IEC 17025:2017 calibration traceability standards for behavioral instrumentation and supports full ALF (Animal Laboratory Facility) documentation packages required for IACUC and EU Directive 2010/63/EU submissions.
What technical support and validation services are provided?
TSE Systems offers on-site installation qualification (IQ), operational qualification (OQ), and performance qualification (PQ) protocols, plus annual preventive maintenance contracts with certified field engineers based in EMEA and North America.
