LogoSpiral Analysis

Spiral Analysis Information

What is Spiral Analysis?

Spiral analysis is a sophisticated method used to evaluate upper limb motor control. It involves drawing a spiral on a digitizing tablet or touchscreen device, which captures various parameters such as pressure, speed, and accuracy. This non-invasive technique provides valuable insights into a person's neuromotor function.

Why Use Spiral Analysis?

  • Non-invasive and easy to administer
  • Provides real-time feedback
  • Tracks motor function over time
  • Highly sensitive to neuromotor changes
  • Useful for research and clinical assessments

How to Use This Tool

  • Draw at least 3-4 complete revolutions.
  • Draw a spiral on the provided canvas using your mouse or touchscreen.
  • Try to make the spiral as round and evenly spaced as possible.
  • Try to maintain a consistent drawing speed and pressure.
  • For best results, try to draw in a single, continuous motion.
  • Click Save to proceed on to the next drawing.
  • Click the "Finish Analysis" button to process your spiral.
  • Review the results and graphs provided for insights into your upper limb motor control.
  • Compare your results over time to track changes in your motor function!

Key Metrics in Spiral Analysis

  • DOS (Degree of Severity): A comprehensive measure of overall spiral drawing performance, indicating the severity of motor impairment.
  • Smoothness: Evaluates the continuity and fluidity of the drawn spiral, reflecting the steadiness of hand movements.
  • Tightness: Measures how closely the spiral turns are drawn to each other, indicating control over fine motor movements.
  • Pressure: Analyzes the force applied while drawing the spiral, which can reveal tremors or muscle weakness.
  • Speed: Measures the velocity of drawing at different points in the spiral, providing insights into motor planning and execution.
  • Frequency Analysis: Examines the rhythmic components of the drawing, which can help identify specific types of tremors.

⚠ Note: This tool is for educational purposes only. For medical concerns, always consult with a healthcare professional.