Measuring perceptual centers using the phase correction response
Villing, Rudi and Repp, Bruno H. and Ward, Tomas and Timoney, Joseph (2011) Measuring perceptual centers using the phase correction response. Attention, Perception, and Psychophysics, 73 . pp. 1614-1629. ISSN 1943-3921
The perceptual center (P-center) is fundamental to the timing of heterogeneous event sequences, including music and speech. Unfortunately, there is currently no comprehensive and reliable model of P-centers in acoustic events, so P-centers must instead be measured empirically. This study reviews existing measurement methods and evaluates two methods in detail—the rhythm adjustment method and a new method based on the phase correction response (PCR) in a synchronous tapping task. The two methods yielded consistent P-center estimates and showed no evidence of P-center context dependence. The PCR method appears promising because it is accurate and efficient and does not require explicit perceptual judgments. As a secondary result, the magnitude of the PCR is shown to vary systematically with the onset complexity of speech sounds,which presumably reflects the perceived clarity of a sound’s P-center.
Repository Staff Only: item control page