Dataset

London human Poisson clicks DBS OFF/ON dataset from Mendeley Data

MATLAB dataset contributed by Dennis London to Mendeley Data for a human Poisson clicks perceptual decision task with deep brain stimulation OFF/ON labels. The file contains 5,085 patient trials, click timing vectors, response times, choices, correctness, DBS state, patient ids, session ids, and session-level alpha, beta, and gamma task parameters.

Access notes

The MVP downloads the single public `poisson_clicks_rawdata.mat` file from Mendeley Data into ignored local raw-data storage. The landing page and public-files endpoint expose the file id, SHA-256, license, DOI, and task field description without authentication.

Data formats

  • MATLAB .mat
  • derived canonical trial tables to be generated

Expected trial-table mapping

Canonical fields the harmonizer expects this dataset to populate.

Canonical field Source mapping
choice Source `choice` mapped as 1 left and 0 right.
correct Source `corr` mapped as 1 correct and 0 incorrect.
evidence_strength Absolute right-minus-left click difference at response.
feedback No reward-feedback field is available; correctness is preserved separately.
prior_context Source `dbs` mapped to `dbs=off` or `dbs=on`.
response_time Source `rt` in seconds relative to trial start.
session_id Patient-session identifier derived from the source `pt` and `session` fields.
stimulus_side Positive right-minus-left click difference mapped to right, negative to left, zero to none.
stimulus_value Source `cdiff` is left-minus-right clicks at response; atlas stimulus value is right-minus-left clicks at response.
subject_id Patient identifier formatted from the source `pt` field.
task_variables Patient id, source session id, DBS state, source choice/correct-answer codes, response-window left/right click counts and times, full scheduled left/right click-time vectors, scheduled duration, response-window duration, source cdiff, alpha, beta, and gamma.
trial_index Global row index within `poisson_clicks_rawdata.mat`.

Caveats

  • The dataset is a Parkinson's disease DBS OFF/ON patient dataset, not a broad healthy-volunteer benchmark.
  • The source `cdiff` sign convention is left-minus-right; the atlas flips it to right-minus-left.
  • Trial records include scheduled click trains beyond the response time, so the evidence-kernel slice uses only clicks up to `rt`.

Papers

Findings

Curves attached to this dataset on shared signed-evidence axes.

See all findings overlaid on shared axes.