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Chronos for BIOPAC

Precise timing for stimulus, response, sound output, and external device communication

USB-based solution eliminates the need for a parallel port

Easily connect and sync with BIOPAC devices

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Chronos  response marker
Part #: STM-CHRONOS-2, STM-CHRONOS-1, STM-CHRONOS-3

The Chronos®  USB-based response and stimulus device features millisecond accuracy in the areas of stimulus, response, sound output, and external device communication—this level of timing accuracy cannot be achieved using a keyboard, mouse, or onboard sound card. Chronos also gives users a solution for communicating with external devices (up to 16 digital inputs and outputs) without the need for a parallel port

Chronos includes 16 digital inputs and 16 digital outputs, eliminating the need for a parallel port. The Photo Sensor accessory (included) can be used on CRT, LCD, and projection displays to detect stimulus onset events, refreshes, and measure rise and fall times. All responses collected are synchronous to the E-Prime® time domain. Multiple Chronos devices can be connected to a single PC (E-Prime 2.0 Professional or E-Prime 3.0).

STM-CHRONOS Systems include

  • Chronos console (8″ x 6-1/2″ x 2-3/8″)
  • I/O Expander
  • BIOPAC Interface cable—choose for Smart Center, STP100C (to MP1X0, or MP36/36R
  • Microphone (4″ x 9-3/4″)
  • Photo Sensor
  • USB cable (6’)
  • Auxiliary I/O breakout cable assembly (2 digital inputs, 2 digital outputs, 1 power (5 V), 1 digital ground, 1 analog input, and 1 analog ground)
  • Demonstration experiment
  • Samples and Tutorials

System Options include appropriate interface cable to specified BIOPAC hardware

STM-CHRONOS-2 Chronos with MP36/36R cable
STM-CHRONOS-1 Chronos with Smart Center cable
STM-CHRONOS-3 Chronos with STP100C cable

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Precise Timing

Chronos delivers millisecond accuracy—this level of timing accuracy cannot be achieved using a keyboard, mouse, or onboard sound card.

Stimulus Presentation & Response Features

LEDs, Audio Output, Digital Output, Analog Output, Pulse Generator AND Keys, Audio Recording, Sound-activated response, Analog Input

BIOPAC Interface Cable Included

Chronos System options include your choice of interface cable for BioNomadix Smart Center, STP100c (for MP160/MP150), or MP36/36R

BIOPAC stimulus marker
View Spec PDF

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Part #: N/A
Categories: Stimulation - Research
Subcategories: Stimulus Presentation - Research

Details

Compatibility


Chronos outputs

Chronos Response Features

Keys

  • 5 buttons
  • 16 digital inputs*
  • Voice key
  • 2 foot pedals (accessories)
  • n-key rollover
  • Programmable debounce intervals

Audio Recording

  • Stream and save vocal responses
  • Start recording at object onset OR when speaking begins

Voice

  • Sound-activated response (voice key)
  • Condenser- or dynamic- microphone compatible
  • Configurable audio input gain
  • Configurable threshold settings for incoming audio responses and recording
  • Detect sound to silence (offset threshold/post-silence interval)

Analog Input*

  • 3 Analog Inputs (plus Photo Sensor) with configurable onset and offset thresholds

Chronos Stimulus Presentation Features

LEDs

  • 5 LEDs with programmable RGB color values (>4,000 colors per LED)
  • Assign color values as response mapping verification, stimuli, or as feedback based on accuracy

Audio Output

  • Present auditory stimuli with accurate and precise sound output latencies of 1 ms (Mix Mode 1) or a fixed latency of 6 ms (Mix Mode 2) across different machine hardware
  • Configurable onset and offset output thresholds per channel

Digital Output*

  • 16 Digital Outputs

Analog Output*

  • 4 Analog Outputs
  • Generate sine, saw tooth, square, triangle, and custom waveforms

Pulse Generator*

  • Generate square waveforms of configurable frequency

*Chronos I/O Expander required for full functionality and included in STM-CHRONOS 


Why use Chronos?

See this publication on reducing audio stimulus presentation latencies in Behavioral Research Method

Compatible with BIOPAC devices

  • STP100C  Isolated Digital Interface for MP160, MP150 or MP100 System
  • BioNomadix Smart Center portable, stand-alone wireless system
  • MP36R Research Systems
  • MP36 Biopac Student Lab Teaching Systems

Videos

E-Prime 3 Webinar | Create a BIOPAC Experiment

E-Prime Webinar | BIOPAC Experiment Part 2

Digital Input to Stim Events

Stim Response Analysis

Focus Areas | Use Find Cycle to Create around Digital Events

Support

Downloads/Resources

Knowledge Base

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