RWD Primate Cognitive Testing System

Overview

The RWD Primate Cognitive Testing System is a purpose-built, modular operant conditioning platform engineered for rigorous behavioral neuroscience research in non-human primates. It implements standardized cognitive paradigms grounded in translational neuropsychology—specifically designed to assess executive function, working memory, attentional control, associative learning, and behavioral flexibility. The system operates on the principle of operant conditioning: subjects interact with visual stimuli displayed on a high-contrast infrared capacitive touchscreen, and correct responses trigger precisely timed, quantifiable reward delivery (solid pellet or liquid), while errors may be followed by timeout or omission feedback. Its architecture integrates real-time stimulus generation, response acquisition, reward actuation, and synchronized multimodal data capture—including optional video co-registration—within a single embedded computing environment. This eliminates external timing jitter and ensures microsecond-level temporal fidelity between stimulus onset, response detection, and reinforcement delivery—critical for studies requiring strict temporal resolution in prefrontal cortex or basal ganglia circuitry investigations.

Key Features

• 37.78 cm diagonal infrared touchscreen with tempered glass and factory-applied anti-scratch protective film—optimized for primate tactile interaction and resistant to repeated abrasion
• Robust 56 × 38 × 30 cm stainless-steel test chamber with tamper-proof latching mechanism and integrated LED chamber illumination for consistent visual conditions and synchronized HD video recording
• Dual-modality reward delivery: calibrated solid pellet dispenser (190 mg standard) and peristaltic liquid delivery system (0.2 mL/sec flow rate, 57 rpm roller speed, 1.6 mm ID tubing)
• Programmable multimodal stimuli: visual (spatially defined icons, color-coded cues), auditory (frequency- and duration-controlled tones), and discrete lever-press operant inputs
• Onboard Intel® 1.6 GHz CPU enables fully autonomous operation—no external PC required for core task execution; supports keyboard, mouse, and HDMI display attachment
• Native Ethernet (10/100/1000 Mbps) and USB 2.0 interfaces facilitate remote configuration, real-time monitoring, and centralized multi-station management across lab networks
• Modular software architecture compliant with ALARA and GLP principles—supports audit trails, user access levels, electronic signatures, and FDA 21 CFR Part 11–ready data export formats (CSV, HDF5, MATLAB .mat)

Sample Compatibility & Compliance

The system is validated for use with macaques (Macaca fascicularis, M. mulatta), marmosets (Callithrix jacchus), and other medium-sized non-human primates weighing up to 12 kg. Chamber dimensions, touchscreen height, and reward port placement conform to NIH Guide for the Care and Use of Laboratory Animals and AAALAC International standards for primate welfare. All hardware components meet IEC 61000-6-2 (immunity) and IEC 61000-6-4 (emission) electromagnetic compatibility requirements. Software design adheres to ISO/IEC 17025:2017 Annex A.2 guidelines for measurement traceability in behavioral assays and supports full experimental metadata embedding—including animal ID, session timestamp, environmental log (light/temperature/humidity), and operator credentials.

Software & Data Management

The RWD Cognitive Suite is a Windows-based, object-oriented application built on Qt framework with deterministic real-time scheduling. It provides three functional layers: (1) Protocol Builder—a drag-and-drop graphical interface for constructing DMTS, PAL, 5-CSRTT, and custom state-machine tasks without coding; (2) Session Controller—with live telemetry, manual override, and emergency stop; and (3) Analysis Engine—delivering automated metrics including latency distributions, accuracy curves, perseverative error rates, and reaction time histograms. All raw event logs are stored in encrypted SQLite databases with SHA-256 hashing and automatic daily backup to network shares. Lifetime free software updates include new task templates, enhanced statistical modules (e.g., Bayesian hierarchical modeling plugins), and regulatory documentation packages for GCP/GMP audits.

Applications

This system supports longitudinal studies in neurodegenerative disease models (e.g., MPTP-induced parkinsonism), psychiatric pharmacology (dopaminergic, cholinergic, and glutamatergic drug screening), neural circuit mapping (combined with fMRI or electrophysiology), and developmental cognition. Published applications include validation of NMDA receptor antagonists in working memory deficits, assessment of deep brain stimulation effects on response inhibition, and cross-species benchmarking of cognitive aging trajectories. Its modularity allows integration with third-party systems—including eye-tracking (Tobii Pro SDK), wireless neural recording (Blackrock NeuroPort), and environmental enrichment controllers—via TCP/IP API and TTL-compatible digital I/O ports.

FAQ

Is the system compatible with existing primate housing infrastructure?
Yes—the enclosure meets standard primate caging footprint specifications and can be mounted on mobile carts or integrated into fixed-wall testing suites using M6 threaded inserts.
Can task parameters be modified during an ongoing session?
Yes—real-time parameter adjustment is supported via secure remote desktop or dedicated web interface without interrupting trial sequencing or data continuity.
Does the software support automated data export for statistical packages?
Yes—CSV, JSON, and HDF5 exports include full trial-by-trial timestamps, stimulus IDs, response coordinates, reward delivery status, and error classification flags.
What level of technical support is provided post-purchase?
RWD offers 24-month hardware warranty, remote diagnostics, on-site installation and validation (IQ/OQ), and annual software training workshops accredited by FENS and SfN.
Are calibration certificates available for reward delivery accuracy?
Yes—each unit ships with NIST-traceable volumetric and mass calibration reports for both pellet and liquid dispensing subsystems, updated annually upon request.