title: Equiprobable and oddball paradigms: two approaches for documenting auditory discrimination.
abstract: The oddball paradigm is frequently used to study auditory discrimination. However, due to its lengthy recording sessions, an alternative design may be considered when time constraints are paramount. In the current study, auditory event-related potentials (ERPs) were obtained in 10 typical adults in response to two speech sound contrasts (/ba/-/ga/, /ba/-/pa/) presented using the oddball and equiprobable (equal trial counts for all conditions) paradigms. Sound discrimination was evident within the 100-300 msec post-stimulus window in both paradigms. Therefore, the equiprobable design can be a reasonable alternative to the oddball paradigm in situations when recording length threatens the quantity of available data.
authors: Vanderbilt Kennedy Center for Research on Human Development and Department of Hearing and Speech Sciences, School of Medicine, Vanderbilt University, Nashville, TN 37203, USA. sasha.key@vanderbilt.edu
authors: Alexandra P
authors: AP
authors: Key
authors: Paul J
authors: PJ
authors: Yoder
mesh_terms: D000161:Acoustic Stimulation / Q000379:methods; D000328:Adult; D001307:Auditory Perception / Q000502:physiology*; D004192:Discrimination, Psychological / Q000502:physiology*; D004569:Electroencephalography; D005072:Evoked Potentials, Auditory / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D010700:Phonetics; D011930:Reaction Time / Q000502:physiology; D013067:Speech Perception / Q000502:physiology*