Glossary¶
- calibratable object¶
Component that provides the “true” values associated with a calibration sample
- codec¶
- variable codec¶
One-to-one mapping between event codes and their associated variables
- component codec¶
One-to-one mapping between numeric component identifiers and component names
- default stimulus display¶
The stimulus display created automatically by an experiment. An experiment will create a default stimulus display only if (1) it requires one and (2) it contains no stimulus display devices with non-empty
display_info
parameters.- event¶
Trio consisting of an event code, time, and value. Primarily used to announce changes to variable values in the event stream.
- event code¶
Integer code associated with an event. Typically identifies the variable whose value has changed, although some system event codes have no associated variable.
- event file¶
On-disk copy of the event stream. Contains a record of everything that happened in an experiment, as indicated by changes to variable values.
- event stream¶
Stream of events generated by a running experiment. Provides continuous updates on the state of the experiment to MWClient and other online observers. Stored in the event file for offline analysis.
- selectable object¶
Component that supports selection-related actions (e.g. Accept Selections). Protocol, Block, Trial, List, and Selection Variable are all selectable objects.
- stimulus display¶
A computer monitor or other physical screen (or portion of such a screen) on which visual stimuli are displayed