Phonetic processing areas revealed by sinewave speech and acoustically similar non-speech
Benson R, Richardson M, Whalen D, Lai S. Phonetic processing areas revealed by sinewave speech and acoustically similar non-speech. NeuroImage 2006, 31: 342-353. PMID: 16530428, DOI: 10.1016/j.neuroimage.2005.11.029.Peer-Reviewed Original ResearchConceptsBrain regionsBilateral superior temporal sulcusSinewave speechPhonetic areaLeft angular gyrusAuditory object recognitionSuperior temporal sulcusObject recognitionDissociation of speechNonspeech processingAngular gyrusSinewave tonesNeural substratesTemporal sulcusWord deafnessObject processingNonspeech stimuliSpeech perceptionPhonetic effectsNon-auditory areasNon-speechAuditory stimuliAcoustic differencesBaseline conditionsCortical levelDifferentiation of speech and nonspeech processing within primary auditory cortexa)
Whalen DH, Benson RR, Richardson M, Swainson B, Clark VP, Lai S, Mencl WE, Fulbright RK, Constable RT, Liberman AM. Differentiation of speech and nonspeech processing within primary auditory cortexa). The Journal Of The Acoustical Society Of America 2006, 119: 575-581. PMID: 16454311, DOI: 10.1121/1.2139627.Peer-Reviewed Original ResearchConceptsEarly cortical levelsPrimary auditory cortexHeschl's gyrusDifferent brain activation patternsAssociation cortexBrain activation patternsFunctional magnetic resonanceAuditory association cortexCortical levelNonspeech processingSpeech perceptionSpeech stimuliNonspeechSpeech systemAuditory cortexActivation patternsSpeechCortexGyrusLevel of complexitySpecialized systemsStimuliPerceptionSeparate sourcesDifferent levels