Cognitive Neuroscience (PsychoPhysiology)

PsychoPhysiology: Overview

Psychophysiological (PsychoPhysiology) measures are often used to study emotion and attention responses to stimuli, during exertion,and increasingly, to better understand cognitive processes. LabScribe Software includes a Experiment Builder Use the stimulus presentation capabilities of LabScribe software, to show an image, play a sound or a video file, while recording physiological parameters from the subject. 

Some of the physiological responses that can be measured include:

  • ERP: Event Related Potentials
  • EDA: Electrodermal Activity
  • EEG: Electroencephalography
  • EMG: Electromyography
  • ECG: Electrocardiogram
  • EOG: Electro-oculogram
  • Temperature
  • Heart Rate
  • Respiration
  • Eye Tracking

SRS-100 Stimulus Response System

Stimulus Response System allows the measurement of various physiological parameters in response to various stimuli.

IX-B3G Isolated ECG/EMG/GSR Biopotential Recorder

The IX-B3G recording module allows recording of up to three channels of ECG, EMG or EEG as well as GSR (galvanic skin response).

IX-EEG 10-20 system EEG Recorder

The iWorx EEG system consists of a standard 10-20 Electro-Cap with Ag/AgCl electrodes, integrated EEG amplifier/data recorder with inputs for 2 additional biopotential signals (ECG, EMG, EOG, etc.), a built in galvanic skin response (GSR) amplifier, an event marker channel (hand-held push button switch or foot reaction switch) and LabScribe acquisition and analysis software with dedicated EEG module.

A-iTRAX Eye Tracking Add-on Set

The A-iTRAX extends iWorx Psychology Systems, with Eye Tracking. Record eye tracking information, along with physiological data from any iWorx Recorder. Visualize and analyze subject reactions to various visual stimuli.

IX-GSR Isolated GSR Recorder

The IX-B3G recording module allows recording of one channel of GSR (galvanic skin response).

PsychoPhysiology: Psychological Test:

Stroop Test: The Stroop Effect demonstrates how interference causes the brain to experience a slower processing time because it is trying to sort through conflicting information it is receiving from outside sources

Eriksen Flanker Test : The flanker paradigm has been used to investigate what factors may affect selective attention and the extent to which processing of irrelevant information occurs.

The Gaze Cue Paradigm : Friesen and Kingstone (1998) showed that incongruent gaze cues, ones that show the gaze looking away from where you want the subject to look, could actually slow down responses to a task, suggesting that gaze cue stimuli could automatically shift attention away from the target object.

Prepulse Inhibition: Prepulse Inhibition (PPI) is a neurological phenomenon in which a weaker prestimulus (prepulse) inhibits the reaction of a subject to a subsequent strong startling stimulus (pulse). The stimuli are normally acoustic, but tactile stimuli, such as air puffs onto the skin and light stimuli, can also be used.

Posner Cueing Task :The Posner Cueing Task, also known as the Posner paradigm, is a psychological test used to assess attention and attention deficit.

Lexical Decision Task : The lexical decision task (LDT) is a procedure used in many psychology and psycholinguistics experiments. The basic procedure involves measuring how quickly people classify stimuli as words or non-words; the participant needs to decide about whether combinations of letters are words or non-words. As an example, “GIRL” is a real word, the response should be “yes, this is a real word”, but the letters “XLFFE” would have the correct response of “No, this is not a real word”.