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Summary of ACT-R model parameters
| Process | Parameter | Value | Description |
|---|---|---|---|
| Encoding | tstim | * | Stimulus encoding time |
| tsignal | 50 ms | Response signal encoding time | |
| Retrieval | W | 1.0 | Total source activation |
| S | 1.5 | Maximum associative strength | |
| F | * | Scales retrieval time | |
| s | * | Controls the variability of activation noise | |
| τ | * or –∞ | Activation threshold | |
| Guessing | tguess | 50 ms | Guessing time |
| bias | 0.5 | Bias to guess “yes” | |
| Responding | trespx | * | Response execution time |
denotes free parameters
