Chronos by PST (Psychology Software Tools) is a powerful and versatile USB-based hardware device designed to deliver millisecond-accurate audio output, response capture, and event timing for behavioral and neuroscience experiments. Whether used in the lab, sound booth, or mobile testing environments, Chronos ensures precise stimulus presentation and input synchronization, making it an ideal companion for E-Prime users and other experimental software.
Chronos allows researchers to easily incorporate auditory stimuli, multiple participant responses, external device control, and accurate TTL trigger outputs in one compact unit - eliminating the complexity of cobbled-together solutions.
What’s Included
Each Chronos package includes everything you need to get started:
Chronos is more than just a response box. It is a fully integrated, all-in-one solution for millisecond-accurate stimulus presentation, response collection, and hardware synchronization. Here’s why it stands out:
Precision You Can Trust
Millisecond-accurate audio output and response timing validated with E-Prime, the gold standard in behavioral research.
Built-in microphone enables voice onset detection with sub-millisecond accuracy.
All-in-One Hardware Hub
Combines response inputs, audio output, microphone input, digital I/O, and analog input—replacing multiple devices with one compact, USB-powered unit.
Simplifies experiment setup and ensures synchronized timing across all channels.
Seamless Integration
Plug-and-play integration with E-Prime 3.0+, with no complex programming required.
Also supports custom development via API and SDK for advanced users.
Reliable Synchronization with External Devices
Ideal for EEG/ERP, eye tracking, and neuroimaging setups, thanks to 8 TTL digital I/O lines.
Synchronize precisely with BioSemi, Brain Products, NIRx, fNIRS, and more.
Designed for Human Research
Perfect for cognitive, auditory, psychophysiological, and behavioral experiments.
Supports multimodal paradigms requiring coordinated audio, visual, and physiological measurements.
Ready Out of the Box
Includes everything you need: 4-button response pads, cables, USB interface, and setup guides.
No external power supply, rack, or converters needed—just plug it into your computer.
Key Features
Millisecond-accurate audio output with low latency
Up to 16 button inputs across 4 customizable 4-button response pads
Integrated microphone for recording or measuring audio response latency
8 analog input channels and 8 digital I/O lines for synchronizing with EEG, eye trackers, stimulators, and more
Visual feedback via 8 software-controllable LEDs
Seamless integration with E-Prime 3.0+, enabling simple drag-and-drop implementation
Applications
Chronos is ideal for research in:
Cognitive psychology and reaction time studies
Auditory processing and language research
EEG/ERP experiments (via TTL triggers)
Neuroscience and psychophysiology
Behavioral experiments requiring precise timing
Multimodal studies involving synchronization with external hardware
Important Note: This product is for research applications only. Not a medical device as defined in Regulation (EU) 2017/745 (EU MDR), Swiss Medical Devices Ordinance (MedDO, SR 812.213), or FDA 21 CFR Part 860. Not designed or intended to be used for diagnosis, treatment of disease or any other medical purposes.
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