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A convenient and accurate parallel Input/Output USB device for E-Prime.

Rosario Canto¹, Ilaria Bufalari, Alessandro D'Ausilio

¹DSBTA-Section of Human Physiology, University of Ferrara, Ferrara, Italy. rosario.canto@unife.it

Behavior Research Methods

|February 3, 2011

Summary

A new USB device offers accurate timing and synchrony for psychological and neurophysiological experiments, replacing the outdated Parallel Port. This system provides a reliable alternative for stimulus delivery synchronization in studies like Event-Related Potential (ERP) research.

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Area of Science:

Neuroscience
Psychology
Computer Science

Background:

Accurate timing and synchrony of input/output signals are crucial for psychological and neurophysiological experiments.
Event-Related Potential (ERP) studies require precise synchronization of stimulus delivery and recordings.
The traditional Parallel Port (PP) is becoming obsolete, especially on modern portable computers.

Purpose of the Study:

To introduce and evaluate a novel USB device that provides parallel Input/Output (I/O) capabilities.
To assess the suitability of this USB device as a replacement for the Parallel Port in experimental settings.
To ensure accurate timing and synchrony for stimulus delivery and data acquisition.

Main Methods:

Development of a USB device for parallel I/O.
Comparative testing of the USB device against the traditional Parallel Port.
Performance evaluation using stress tests on both desktop and laptop computers.
Validation of synchronization accuracy in experimental setups.

Main Results:

The developed USB device demonstrated accurate performance in timing and synchrony.
The system proved to be a viable substitute for the Parallel Port in stress tests.
No significant loss of accuracy was observed when compared to the Parallel Port.

Conclusions:

The proposed USB device offers a convenient and accurate solution for parallel I/O in experimental research.
This USB system can effectively replace the aging Parallel Port, particularly with software like E-Prime.
It provides a modern and reliable alternative for researchers needing precise signal synchronization.