#%% [markdown] # Complex cognitive experiments require participants to perform multiple tasks across a space of time and then capture observations with different modalities. This notebook demonstrates some possible solutions for the problem of scheduling experimental tasks, and mainly concerns reformulating experiments as a resource allocation problem. # First, we model a study with 12 sessions. Sessions consist of several surveys before and after a set of experimental tasks. We then define constraints and solve for a schedule for the given scenario. This scenario only plans the experiment for a single subject. # Use the following command to install dependencies: `pip install pyschedule` #%% from math import ceil from pyschedule import Scenario, solvers, plotters, alt import seaborn as sns sns.color_palette("colorblind") sns.set_style('white') # experiment duration in minutes session_duration = 60 game_duration = 45 n_subjects = 2 n_sessions = 12 duration_per_question = .1666667 # minutes (~10sec) prestudy_tasks = [ "xcit_demographics" ] postgame_tasks = [ "nasa_tlx", "xcit_postgame_debrief" ] poststudy_tasks = [ "xcit_poststudy_debrief" ] n_questions = { "xcit_demographics": 20, "aiss": 20, "arces": 12, "asrs": 18, "avg2019": 16, "bfi_2_par1": 30, "bfi_2_part2": 30, "bisbas": 24, "bis11": 12, "cfq": 25, "cfs": 12, "dyslexia": 15, "ehi_sf": 4, "grit12": 12, "i_panas_sf": 10, "ipaq_sf": 7, "maas": 15, "mfs": 12, "mw": 8, "mwq": 5, "ncs_6": 6, "nfc": 18, "psqi": 9, "rei": 40, "sci": 8, "sqs": 28, "upps_sf": 20, "webexec": 12, "who5": 5, "whoqol": 26, "xcit_poststudy_debrief": 20, "nasa_tlx": 6, "xcit_postgame_debrief": 15 } # 1. define the study s = Scenario('Prolific500', horizon=session_duration) # 2. sessions sessions = s.Resources('Session', num = n_sessions) # 2. games games = s.Tasks('Game',length=game_duration, num=n_sessions, is_group=False) games += alt(sessions) # questionnaires for q in n_questions.keys(): n = n_questions.get(q, 0) duration = ceil(n * duration_per_question) task = s.Task(q, length= duration, delay_cost=1) if q in poststudy_tasks: print(q, 1) task += sessions[-1] s += games < task elif q in prestudy_tasks: print(q, 2) task += sessions[0] s += task < games elif q in postgame_tasks: print(q, 3) task += sessions s += games < task else: print(q, 4) task += alt(sessions) print(s.tasks) solvers.mip.solve(s) print(s.solution()) plotters.matplotlib.plot(s, fig_size=(50,5)) #%% #%% [markdown] # Complex experiments in cognitive science require participants to perform multiple tasks and capture observations with different modalities. This notebook demonstrates some possible solutions for the problem of scheduling experimental tasks. # First, we model a study with 12 sessions. Sessions consist of several surveys before and after a set of experimental tasks. We then define constraints and solve for a schedule for the given scenario. This scenario only plans the experiment for a single subject. #%% # MPILX Scheduling from pyschedule import Scenario, solvers, plotters, alt # experiment duration for each subject in minutes study_duration = 12 * 24 * 60 # days * hours * minutes n_subjects = 2 task_durations = { 'pretest_presurvey': 30, 'pretest_DWI': 15, 'pretest_rsfMRI': 15, 'pretest_anatomical': 15, 'pretest_taskfMRI': 45, 'pretest_postsurvey': 30, 'pretest_presurvey': 30, 'training_presurvey': 30, 'training_': 10 * 24 * 60, #TODO expand to daily 'training_postsurvey': 30, 'posttest_DWI': 15, 'posttest_rsfMRI': 15, 'posttest_anatomical': 15, 'posttest_taskfMRI': 45, 'posttest_postsurvey': 30 } # the planning horizon has s = Scenario('MPILX50', horizon=study_duration) subject = s.Resource('subject', num=n_subjects) tasks = list() for t in task_durations.keys(): duration = task_durations[t] task = s.Task(t, length=duration, delay_cost=1) task += alt(subject) tasks.append(task) for i in range(len(tasks)-1): s += tasks[i] < tasks[i+1] # compute and print session schedules solvers.mip.solve(s) print(s.solution()) plotters.matplotlib.plot(s)