Product Details


from £827.02 / €980.00
Quick Overview

Scripting language used to define a wide range of experimental trial-based paradigms


ERTS (Experimental Run-Time System) is an experiment generator package running under MS-DOS.  Its scripting language can be used to define a wide range of experimental trial-based paradigms.

Brief description

ERTS is a flexible software tool for developing and running psychological experiments, including accurate event and reaction timing. ERTS supports non-adaptive trial-oriented tests and continuous tracking tasks. A range of sample applications are provided, including Sternberg memory search, visual search, Posner's  matching task, Stroop colour interference, mental rotation, continuous recognition and vigilance tasks.

Experiments are developed using a simple but powerful scripting language. For accurate timing, experiments should be run in MS-DOS mode.

Key features

  • Millisecond event timing accuracy, even across trials
  • Tachistoscopic colour image displays with minimum exposure time of one screen refresh
  • Registration of key press and release from keyboard, mouse or external keys
  • TTL sync signals of stimulus onsets and responses for EEG, PET or fMRI studies
  • All input and output files in readable ASCII format
  • High-level scripting language designed for experimental control
  • SoundBlaster support for auditory stimuli and voice-key
  • Direct support of a variety of graphics files (BMP, RLE, ICO)
  • Support for pursuit and compensatory tracking

Optional features

An additional module (ERP) supports the synchronisation of tasks with the collection of physiological data. ERP can send TTL-like signals via the data  lines of the PC’s parallel port for coding stimulus onsets and responses, and supports the integration of external TTL-signals (e.g.  ready-to-scan) for synchronizing trials.

EXKEY logic provides a facility to design and use your own response pads. External response keys are software configurable and provide enhanced accuracy of response registration.

Hardware and software requirements

  • PC with 386 processor or higher
  • VGA or SVGA video
  • SoundBlaster-compatible sound card (for audio I/O)
  • ERTS runtime engine requires DOS version 6 or higher, and for accurtate timing must be run in real-mode DOS rather than within a Windows DOS box
  • Development may be carried out under Windows (any version)


ERTS single licence £ 827.02 980.00

All prices exclude VAT and shipping

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