Students and professor working in neuroscience

Human Neurophysiology Laboratory

Human Neurophysiology Lab
The department of psychology utilizes BIOPAC technology to digitally collect human neurophysiological recordings.
Work Station in the lab As shown to the left, a dedicated room for human neurophysiological recordings is equipped with 2 recording PCs and BIOPAC equipement. This set-up allows for simulataneous recordings of up to 8 channels of data sampling with real-time display of the recordings monitored by the experimenter.  Data is digitally encoded and stored to allow detailed off-line analysis.
Shown to the right is the stimulation computer and bed for use during subject testing.  The stimulation computer can present digital audio samples or images to subjects or be used to test cognitive performance such as memory skills or reading tasks.  Subjects typically utilize the bed during EEG and sleep recordings.  Bio feedback room

Our equipment allows students to conduct the following human neurophysiological recordings:

  • EEG - electroencephalography - measurements of human brain activity using multi-electrode recording caps
Male participating in experiment in lab

Cap used in the lab

The department of psychology has 2 complete EEG cap recording set-ups.  The EEG cap allows recordings of human brain activity from 19 embedded electrodes.
  • GSR - galvanic skin resistance - measurements of human nervous system arousal using data samples from skin conductance, heart rate, and respiration also known as a polygraph test

This is an example of polygraph testing during a laboratory that stimulates arousal through olfactory odors.  The subject's heart rate, respiration, and skin conductance are measured while sampling pleasant, neutral, and unpleasant stimuli.

Person being blindfolded for an experiment
  • EOG - electrooculogram - measurements of human eye movements that allow eye-tracking and assessment of saccadic and smooth pursuit eye movements

Student getting electrodes put on her head

Student attaching electrodes to participant

  • EMG - electromyography - measurements of human muscle potentials allowing assessment of muscle fiber recruitment and load analysis
  • ECG - electrocardiography - measurements of heart rate and blood pressure
  • Cardiopulmonary Physiology - simulataneous measures of human cardiovascular and respiratory functions
  • Human Reflexes - measurements of reaction times to stimuli
  • Human Nerve Conduction - measurements of the speed of human neural signals through electrical stimulation of specific nerve pathways
  • Sleep Performance - simulataneous measurements of brain activity,  nervous system arousal, and cardiopulmonary functions during sleep

Biopac Units in the lab 

In addition, there are 4 DELL laptops with dedicated BIOPAC equipment to allow temporary recording stations to be placed through the neuroscience laboratory areas.