Advanced clinical neurological rehabilitation made easy and accessible.
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Pursuits
Smooth visual tracking
Saccades
Rapid gaze shifts
OPK Training
Optokinetic training
Go / No-Go
Attentional control & inhibition
Stroop
Color-word interference training
Metronome
Timed tapping & rhythm training
Peripheral Dual Task
(WORK IN PROGRESS) · Divided attention & field of view
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Symptom Assessment
Graded Symptom Assessment (GSA)
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Info
App guide, conditions, clinic & references
Direction
°
Direction
°
Motion
%
°
Saccade
%
%
%
Targets
Position
%
%
Moves everything left/right and up/down. Targets pushed off the screen are skipped.
Target
%
Timer
s
1:00
0 / 3
0
0.0 / 12 min
Vol
OPK Training
Choose how to set up this exercise.
OPK Training
Optokinetic remapping. Set up your screen, then choose a level. Higher levels move faster.
Measured diagonally, from one corner to the opposite corner (for example a 27 inch monitor).
Measured from your nose to the screen.
Single run: one timed exercise in the chosen direction.
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Drag the directions into the order you want. Auto runs 4 minutes of stimulus per direction (in blocks, with a break after each), then moves through each selected direction in that order.
Respond as fast as you can to Go targets, but hold back when a No-Go target appears, which trains attention and impulse control. Select a mode below to begin.
Click the green GO, don't click the red NO-GO.
⏱
Timed
sec
∞
Endless
🔢
Items
rounds
Trial 1 of 40
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Go / No-Go Results
Select Deficit Profile
Profile
Choose the deficit to target, then select a starting level.
Inhibitory Control
High commission errors, meaning responses to No-Go targets are not suppressed
Attentional Engagement
High omission errors, meaning Go targets are missed due to inattention
Processing Speed
Slow mean reaction time, meaning delayed stimulus processing
RT Consistency
High RT variability, meaning inconsistent processing speed
Level 1Block 1/3Trial 1/20
Follow the instructions on screen.
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Block 1 Complete
OKN Rehab Regiment
Enter starting speed (°/s) for each direction. Leave blank to skip. 6 files will be exported (Day1–Day6), each +4°/s faster.
Metronome
Set a tempo, press Start, then click the CLICK button in time with each beat. Your timing accuracy and consistency are scored live.
100%
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Avg (ms)
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Consistency
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Trend
0
Clicks
Waiting for clicks…
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▸ Performance reference & timing windows
Mouse / Trackpad (offset –25ms)
Level
Avg Error
Population
Elite
≤ 45 ms
Healthy trained adults
Good
46–80 ms
Healthy adults, functional patients
Mild Impairment
81–120 ms
Subclinical, early PCS, borderline
Moderate
121–220 ms
Active rehabilitation
Significant Deficit
221–340 ms
ADHD, TBI, chronic PCS
Severe
> 340 ms
Acute injury, severe disorder
SD (Timing Variability)
Level
SD
Interpretation
Excellent
≤ 40 ms
Consistent timing, circuit intact
Good
41–80 ms
Mild inconsistency
Impaired
81–120 ms
Cerebellar timing dysmetria
Severely Impaired
> 120 ms
Marked lapses, attention or cerebellar
EARLY = tapping ahead of the beat (over-anticipatory forward model). LATE = processing or conduction delay. HIGH SD with near-normal mean = cerebellar timing dysmetria. Click timing uses pointer-down with a fixed device-latency correction so taps align with sensorimotor synchronization norms.
Graded Symptom Assessment (GSA)
Rate each symptom from 0 (not present) to 6 (most severe). Scores are totalled across four domains and classified as Adequate, Mild, Moderate, or Severe. Use the Export PDF button to save a dated report.
0 None1-2 Mild3-4 Moderate5-6 Severe
Report
Stroop
A word will appear in a color that doesn't match what it says. Tap the button matching the text color, not the word.
Session Settings
seconds
Tap the button matching the color the word is shown in, not the word it spells.
Trial 1 of 20
Results
Peripheral Dual Task
Keep your eyes on the center cross. Identify the center shape AND where the edge target appeared.