title: Different ERP profiles for learning rules over consonants and vowels.
abstract: The Consonant-Vowel hypothesis suggests that consonants and vowels tend to be used differently during language processing. In this study we explored whether these functional differences trigger different neural responses in a rule learning task. We recorded ERPs while nonsense words were presented in an Oddball paradigm. An ABB rule was implemented either over the consonants (Consonant condition) or over the vowels (Vowel condition) composing standard words. Deviant stimuli were composed by novel phonemes. Deviants could either implement the same ABB rule as standards (Phoneme deviants) or implement a different ABA rule (Rule deviants). We observed shared early components (P1 and MMN) for both types of deviants across both conditions. We also observed differences across conditions around 400ms. In the Consonant condition, Phoneme deviants triggered a posterior negativity. In the Vowel condition, Rule deviants triggered an anterior negativity. Such responses demonstrate different neural responses after the violation of abstract rules over distinct phonetic categories.
authors.affiliation: Universitat Pompeu Fabra, C. Roc Boronat, 138, 08018 Barcelona, Spain. Electronic address: julia.monte@upf.edu.
authors.forename: Júlia
authors.initials: J
authors.lastname: Monte-Ordoño
authors.affiliation: Universitat Pompeu Fabra, C. Roc Boronat, 138, 08018 Barcelona, Spain; ICREA, Pg. Lluís Companys, 23, 08010 Barcelona, Spain.
authors.forename: Juan M
authors.initials: JM
authors.lastname: Toro
mesh_terms: D000328:Adult; D005071:Evoked Potentials / Q000502:physiology*; D006801:Humans; D007858:Learning / Q000502:physiology*; D010700:Phonetics; D013067:Speech Perception / Q000502:physiology*; D055815:Young Adult
keywords: Consonants; Functional differences; MMN; N400; Rule learning; Vowels