analysis.random-dot-motion.descriptive-psychometric
Random-Dot Motion Report
Roitman-Shadlen random-dot motion slice generated from the processed PyDDM trial table, with target-coded psychometric and chronometric summaries.
Trials6,149
Response trials6,149
Subjects2
Coherence levels6
Psychometric rows11
Prior blocks1
Source
- Dataset
- dataset.roitman-shadlen-rdm-pyddm
- Protocol
- protocol.random-dot-motion-classic-macaque
- Source commit
- cf161c11e8f99f18cf805a7ae1da8623faddad86
- Source files
- 7ac2daa16e9631aa189ae146a89f9f29cc6fccd6c0f31b4d5849990a6cebbd4b
- Subjects
- monkey-1, monkey-2
Provenance
- Generated
- 2026-04-27T06:47:28.634460+00:00
- Commit
- 4fabef6
- Git dirty
- false
- Response time
- saccade time minus stimulus onset, from PyDDM processed CSV
Psychometric Summary
Chronometric Summary
Psychometric Fit
| Prior | Trials | Responses | Coherence levels | Empirical bias | Empirical threshold | Fit bias | Fit threshold | Fit status |
|---|---|---|---|---|---|---|---|---|
| all trials | 6,149 | 6,149 | 11 | 0.1423 | 5.784 | -0.2126 | 5.357 | ok |
Chronometric Rows
| Coherence | Trials | P(correct) | Median RT | Mean RT |
|---|---|---|---|---|
| 0 | 1,019 | 0.4995 | 0.821 | 0.8258 |
| 3.2 | 1,028 | 0.642 | 0.8145 | 0.8201 |
| 6.4 | 1,025 | 0.7766 | 0.762 | 0.7747 |
| 12.8 | 1,023 | 0.9413 | 0.675 | 0.684 |
| 25.6 | 1,026 | 0.9951 | 0.544 | 0.5427 |
| 51.2 | 1,028 | 1 | 0.41 | 0.4231 |
Generated Files
Caveats
- The PyDDM CSV stores unsigned coherence, target choice, and correctness. Signed coherence is reconstructed using the documented PyDDM target-coding transform.
- Canonical left/right labels are used as target-2/target-1 labels because the processed CSV does not preserve a stable screen-side mapping.
- Reaction times are reported from the processed PyDDM CSV without excluding short or long trials.