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Acta Physiologica Congress

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Acta Physiologica 2013; Volume 207, Supplement 694
92nd Annual Meeting of the German Physiological Society
3/2/2013-3/5/2013
Heidelberg, Germany


A TOOL FOR REACTION TIME STUDIES IN STUDENTS LABORATORY EXPERIMENTS
Abstract number: P205

Christ 1   *A.

1 Martin Luther University Halle, Institute of Physiology, Halle (Saale), Germany

Reaction time measurements in students lab courses can help to understand basic mechanisms of psychophysiology like influence of different stimuli or complexity of decision-making. We developed a device that can be used together with ADInstruments teaching system based on PowerLab 26T to implement such experiments. For optical stimuli safety goggles with mounted red and green LEDs are connected. A built in electronic circuit generates frequencies of 400 Hz and 4000 Hz which are applied as acoustical stimuli via headphones. The different optical or acoustical stimuli will be selected by buttons which trigger specific digital input signals to the PowerLab system. These events are used by the LabTutor software to control either the initiation of an experiment or to set comments during the measurements which are written (at the specific point of time) on the record channels.

Test subjects use the push-button switches from the LabTutor teaching system in order respond to the stimuli. By this either the reaction time or the correctness of the answer can be assessed. The analysis of the data is controlled by the LabTutor software.

At present the system is used for courses on central nervous system physiology. However, the concept of using an external event generator which is connected to the digital inputs of the PowerLab system to initiate and control the experiment can be used in a broad spectrum of lab courses.

To cite this abstract, please use the following information:
Acta Physiologica 2013; Volume 207, Supplement 694 :P205

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