The silent period of decision making

Event details
Date | 22.09.2011 |
Hour | 18:00 |
Speaker | Prof. Michael HERZOG |
Location | |
Category | Miscellaneous |
In a typical experiment on decision making one out of two possible stimuli is presented per trial. Observers decide which one was presented. The underlying decision making process is commonly viewed as a one-stage process in which sensory evidence for both stimulus alternatives is accumulated until evidence for one of the stimuli crosses a threshold ("race-to-threshold process"). Using a two-stimulus presentation paradigm we found that decision making is a two-stage process in which evidence integration precedes a race-to-threshold process. This evidence integration stage is "invisible" in one-stimulus presentation paradigms which thus underestimate the duration of the entire decision making process.
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Practical information
- General public
- Free
Contact
- Prof. W. GERSTNER