SSP Scale

SSP SCALE

Measuring Human Binocular visual perception, including hand, eye, body, visual-spatial, and visual perception performance in 3D fields to create a scale based on an SSP (Status, Symptoms & Performance) score. This is a three vector one to ten scale. From one to five, the scale is focused on the visual and mental assault from things like TBI, Stroke, or other neurological disorders. On the SSP Score, normal vision falls at the five to six score. When we move into six to ten, the scale measures performance. We plot on the SSP Score with these three factors:

A) Status

B) Symptoms

C) Performance Measures

This gives us three data points to measure against and accounts for natural human visual system variation. We use a three-color system to indicate at a glance where the person falls concerning norms. Green indicates that all three factors are in the normal zone. Yellow means that at least one factor is outside the norm. Red indicates that all three factors are outside of the norms.

Here is a summary of how the Praxi tests are scored based on the provided sources:

SSP (Symptom, Status, and Performance) Scale: The Praxi platform uses a patent-pending scale called the SSP to score visual performance. This scale ranges from one to ten and uses three factors: Symptoms, Status, and Performance Measures. Scores from one to five generally indicate visual and mental issues stemming from traumatic brain injury (TBI), stroke, or other neurological disorders. Normal vision falls between five and six on the SSP scale. Scores from six to ten measure performance.

Color-Coded System: A three-color system quickly indicates how a person's score relates to the norms.

  • Green means all three factors fall within the normal range.
  • Yellow means at least one factor is outside of the normal range.
  • Red means all three factors are outside of the normal range.

Symptoms: The Symptoms score is calculated based on self-reported questionnaires covering a range of categories, including:

  • BVISS (Brain Injury Vision Symptoms Survey)
  • ACES (Acute Concussion Evaluation) and other TBI and neurological assessments
  • Aging in Place Assessments 
  • Pro Athlete Assessments 
    • Football specific questions 
    • Baseball specific questions 
    • Concussion screening questionnaire 
  • Profile information, demographics, and comparisons between self-reporting and test results to account for discrepancies.

Status: The Status score is derived from various physical measurements taken during the tests, which may be automated, guided by a technician, or a combination of both. The Status score considers the accuracy and fidelity of each test and compares results to benchmarks or previous scores.

Performance: The Performance score assesses how a participant compares to others regarding hand-eye, body-brain, and visual-spatial reactions in 3D space. This score considers the population pool's size and demographics and evaluates the overall quality of the data collected.

Data Collection: Praxi utilizes various methods for collecting visual data, each offering different levels of precision.

VR HUD Eye Tracking: The most accurate method involves a VR headset with eye-tracking capabilities, which provides high fidelity and collects detailed eye data.

Mobile Testing: Mobile devices can collect data using sensors like gyroscopes and LIDAR, which provide a moderate level of accuracy.

Webcam via Digital Portal: This method is the most accessible but least accurate. It utilizes a webcam and machine learning techniques for 2D assessments.

Scoring Variations Based on Technology: The scoring algorithms account for the varying degrees of precision different data collection methods offer.

Ganzfeld Setting: A Ganzfeld setting eliminates external visual distractions and helps create uniform visual metrics for a pure assessment of visual function.

Referral Program: If a user scores low on the SSP scale, particularly in the deficit range (below five), Praxi recommends a referral to a partner clinic for a more comprehensive evaluation.

Data Integration and Training: The Praxi Performance product is designed to adapt to users' progress based on their SSP scores, tailoring training levels and therapies to address specific areas needing improvement.

Percentile Ranking: In some instances, individual scores are compared against others in the same age group, generating a percentile rank. For example, an individual might score in the 90th percentile for their age, indicating that their performance is better than 90% of their peers.

Data Transparency: Partners can access raw data from the assessments, and the platform is developing standardized reports similar to school test scores to facilitate a more straightforward interpretation of results.