Adaptive staircase procedures converge to thresholds by adjusting signal level per answer

Evidence

The subject is presented with a signal+noise interval and two noise-alone intervals in random order with the forced choice approach. The SNR is reduced for correct answers and increased for wrong answers. The SNR step size is 3 dB first and is decreased to 1 dB after two reversals in the procedure. — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 927

Categorization

Category: Factual Claims

Related

• Adaptive threshold methods trade fast converging results against convergence risk (similarity 0.88)
• Adaptive staircase procedures trade efficiency and bias avoidance against convergence risk (similarity 0.87)
• One-up two-down adaptive procedures track the 70.7% point on the psychometric function (similarity 0.87)
• The 3-down one-up adaptive rule tracks 79.4 percent correct thresholds (similarity 0.86)
• Two-down one-up adaptive tracking estimates the 70 percent correct threshold (similarity 0.85)
• Adaptive staircase tracks the 70.7 percent correct point on the psychometric function (similarity 0.85)
• One-up-two-down adaptive staircases can report lower thresholds than other estimation methods (similarity 0.84)
• Adaptive procedures converge on thresholds without explicit psychometric functions (similarity 0.84)
• Threshold from up-down staircases is the averaged level at response reversals. (similarity 0.83)
• Adaptive procedures adjust stimulus intensity based on prior responses and converge on thresholds (similarity 0.83)
• Two-down one-up adaptive procedures estimate the 70 percent correct point (similarity 0.83)
• Adaptive 3-down 1-up tracking with 2 dB steps estimates spectral ripple thresholds (similarity 0.82)
• Adaptive staircases track a listener’s responses to set signal level (similarity 0.81)
• Different staircase-analysis methods yield different minimum audible angle estimates (similarity 0.81)
• MAA thresholds are measured with 3-AFC staircases tracking the 70.7% point (similarity 0.80)

Broader Connections

• One-up two-down adaptive procedures track the 70.7% point on the psychometric function #expands (0.95) — Dijk, Pim van, Physiology, Psychoacoustics and…, 939
• Staircase procedures overestimate thresholds relative to theoretical targets #contradicts (0.80) — Jennifer Lentz, Psychoacoustics- Perception of Normal…, 322