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Main Panels

GeorgeGiannopoulos edited this page May 19, 2019 · 7 revisions

Table of contents

Main Panels Emotiv Status Stimuli Files Stimuli Control Record Options Hidden Menu

Main Panels

Panel Action
Emotiv Status Displays Connectivity/Battery/Signal status
Stimuli Files Select/Reorder the Stimuli Files or Control the experiment
Record Options Select the recording option of the experiment
Hidden Menu Select between Different Screens, Set Attributes to audiovisual files

Emotiv Status

Icons Action
Emotiv Channel Status Displays the status of each of the 14 channels
Emotiv Connectivity Displays Connectivity Status
Emotiv Battery Percentage Displays Battery Percentage
Emotiv Signal Strength Displays Signal Strength

Stimuli Files

Button Action
Add Add media files in the list for presentation
Delete Delete selected media files from the list
Clear Clear media files from the list
Up Move one row to the top the selected files
Down Move one row to the bottom the selected files
Attribute Assign attribute values to the audiovisual files
Clear Attribs Clear all attribute values

Stimuli Control

Button Action
Start Start media presentation and emotiv recording
Pause Pause media presentation and emotiv recording
Continue Continue media presentation and emotiv recording
Stop Stop media presentation and emotiv recording

Warning: It is not recommended to pause the experiment because the program continues to record the EEG data and append them to the final file

Note: The user can use the mouse or keyboard to change the audiovisual file list (e.g. Drag n Drop, Delete Button) Also, the user can pause or continue the experiment using the space bar or the Esc key respectively

Record Options

Variables Action
Display time Set presentation time for images*
Time between files Set the waiting time between the audiovisual files
Counter Set the counter down time (plus 1 second for loading)
# of elements before evaluation Set the # of files between evaluation images*
Evaluation time Set the duration of every evaluation image
Background color Set the color of the presentation’s background
Fixation Cross Displays a "fixation cross" before each stimulus
Display method Select aspect radio
Keystroke log Logs keystrokes in a csv file*
Random sequence Displays the audiovisual files with a random order
Output path Output path for recorded EEG and keystrokes' csv files
Output name Set the name of the output files*

Notes:

  1. The Duration of videos and sounds equals to the original duration of each file
  2. The evaluation images reside under .\Resources\Images\Evaluation_Images
  3. The subject can use Keystrokes to describe the emotional arousal & valence in real time (A mouse or a digitizer can be used too)
  4. Date and time of the experiment are appended to the output file

Hidden Menu:

The main window contains the necessary elements and options that help the user to conduct an experiment. However, there are some hidden options that the user can select in order prior to running the experiment. The user can navigate to tools -> different screen or tools -> attributes, which respectively display two new element in the main window:

Panel Action
Screen Selection Select between Different Screens
Attributes Set Attributes to audiovisual files

Screen Selection

This option is only available on multi-monitor systems and helps the user to improve the experience of the experiments. The user can select the screen in which the StimuliXpert main window is located and then from the hidden menu Screen Selection to select the secondary screen in which the audiovisual files will be presented. This option is useful in cases where the user wants to control the experiment so he/she can Start, Stop, Pause or Continue the audiovisual Stimulus or check the status of the Emotic headset

Button Action
Identify Displays a unique number on each monitor
Drop-Down menu Select the secondary screen

Attributes

This element is related to the attributes that the user can assign to the audiovisual files.

Button Action
Add Add a new attribute by name and values (comma separated list)
Delete Delete an attribute
Clear Clear all attributes
Up Move one row to the top the selected attribute
Down Move one row to the bottom the selected attribute

Note: For more information about attributes go here