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Top two rows: timing a novel 6 second stimulus. Timer starts with a low baseline slope (A = 0.001) on trial 1 and gradually adapts over training to reach approximately the required slope. Middle two rows: stimulus duration change from 6 to 3 seconds. Bottom two rows: stimulus duration change from 6 to 12 seconds. Parameters: αt = 0.215, θ = 1, σ = 0.25, m = 0.15.
