Bridging computational approaches to speech production: The semantic-lexical-auditory-motor model (SLAM).
Psychon Bull Rev
; 23(2): 339-52, 2016 Apr.
Article
em En
| MEDLINE
| ID: mdl-26223468
ABSTRACT
Speech production is studied from both psycholinguistic and motor-control perspectives, with little interaction between the approaches. We assessed the explanatory value of integrating psycholinguistic and motor-control concepts for theories of speech production. By augmenting a popular psycholinguistic model of lexical retrieval with a motor-control-inspired architecture, we created a new computational model to explain speech errors in the context of aphasia. Comparing the model fits to picture-naming data from 255 aphasic patients, we found that our new model improves fits for a theoretically predictable subtype of aphasia conduction. We discovered that the improved fits for this group were a result of strong auditory-lexical feedback activation, combined with weaker auditory-motor feedforward activation, leading to increased competition from phonologically related neighbors during lexical selection. We discuss the implications of our findings with respect to other extant models of lexical retrieval.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Afasia
/
Psicolinguística
/
Percepção Auditiva
/
Fala
/
Modelos Psicológicos
/
Atividade Motora
Tipo de estudo:
Prognostic_studies
Limite:
Humans
Idioma:
En
Revista:
Psychon Bull Rev
Assunto da revista:
PSICOLOGIA
Ano de publicação:
2016
Tipo de documento:
Article
País de afiliação:
Estados Unidos