Related Experiment Video
Updated: Jan 11, 2026

A Two-interval Forced-choice Task for Multisensory Comparisons
Published on: November 9, 2018
An efficient continuous-tone procedure for the study of frequency discrimination
Jason Tzu-Hsien Lien1,2, Abhinav Uppal3, Rupesh Chillale4,5
1SOUND Laboratory, Department of Clinical Neurosciences, University of Cambridge, Cambridge, United Kingdom.
Abstract:
This paper describes a method of gathering experimental data for the study of frequency discrimination. The method is efficient in terms of participant time, is easy to deploy on an online platform to gather behavioral responses, and allows simultaneous measurement of brain activity without contamination from onset responses. The participant hears a continuous tone within each block, with frequency steps at predetermined intervals, and is invited to respond "up" or "down" to these steps by pressing one of two keys. The magnitude of the steps varies according to a predetermined schedule (constant-stimuli, not adaptive) from large (easy) to small (hard), and the discrimination threshold is derived from a psychometric function fitted to the responses to this sequence. Comparison with earlier published procedures shows that the new method yields comparable thresholds, albeit less variable and slightly lower, and thus presumably closer to sensory limits.
More Related Videos
14:05Behavioral Assessment of Hearing in 2 to 4 Year-old Children: A Two-interval, Observer-based Procedure Using Conditioned Play-based Responses
Published on: January 23, 2017
10:50Behavioral Determination of Stimulus Pair Discrimination of Auditory Acoustic and Electrical Stimuli Using a Classical Conditioning and Heart-rate Approach
Published on: June 6, 2012
Related Concept Videos
Sampling Continuous Time Signal
In the...
Design Example
Discrete-Time Fourier Series
For a discrete-time periodic signal x[n]...
Continuous -time Fourier Transform
Expected Frequencies in Goodness-of-Fit Tests