Template:StimulusTaskParams: Difference between revisions
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====DisplayResults==== | ====DisplayResults==== | ||
Switches result display of copy/free spelling on or off. | Switches result display of copy/free spelling on or off. | ||
In the P3Speller, setting ''DisplayResults'' to 'off' will disable execution of all speller commands (such as switching matrices) as well. |
Revision as of 13:56, 23 October 2009
WindowBackgroundColor
The window's background color, given as an RGB value. For convenience, RGB values may be entered in hexadecimal notation, e.g. 0xff0000 for red.
PreRunDuration
The duration of the pause preceding the first sequence. Given in sample blocks, or in time units when immediately followed with 's', 'ms', or similar.
PostRunDuration
Duration of the pause following last sequence. Given in sample blocks, or in time units when immediately followed with 's', 'ms', or similar.
PreSequenceDuration
Duration of the pause preceding sequences (or sets of intensifications). Given in sample blocks, or in time units when immediately followed with 's', 'ms', or similar.
In free or copy mode, the PreSequenceDuration and PostSequenceDuration parameters may not go below twice the value of the StimulusDuration parameters, in order to allow for presentation of FocusOn and Result announcement stimuli.
PostSequenceDuration
Duration of the pause following sequences (or sets of intensifications). Given in sample blocks, or in time units when immediately followed with 's', 'ms', or similar.
When used in conjunction with the P3TemporalFilter, this value needs to be larger than the EpochLength parameter. This allows classification to complete before the next sequence of stimuli is presented.
StimulusDuration
For visual stimuli, the duration of stimulus presentation. For auditory stimuli, the maximum duration, i.e. playback of audio extending above the specified duration will be muted. Given in sample blocks, or in time units when immediately followed with 's', 'ms', or similar.
ISIMinDuration, ISIMaxDuration
Minimum and maximum duration of the inter-stimulus interval. During the inter-stimulus interval, the screen is blank, and audio is muted.
Actual inter-stimulus intervals vary randomly between minimum and maximum value, with uniform probability for all intermediate values. Given in sample blocks, or in time units when immediately followed with 's', 'ms', or similar. Note that temporal resolution is limited to a single sample block.
InterpretMode
An enumerated value selecting on-line classification of evoked responses:
- 0: no target is announced "attended", and no classification is performed;
- 1: online or free mode: classification is performed, but no "attended target" is defined;
- 2: copy mode: "attended" targets are defined, classification is performed.
DisplayResults
Switches result display of copy/free spelling on or off. In the P3Speller, setting DisplayResults to 'off' will disable execution of all speller commands (such as switching matrices) as well.