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NEUROMORFOLOGÍA: EL MODELO DECLARATIVO-PROCESAL 28 MAR 2011 – DÍA 30. Neurolingüística del español SPAN 4270 Harry Howard Tulane University. ORGANIZACIÓN DEL CURSO. http://www.tulane.edu/~howard/SPAN4130-Neurospan/ El curso es apto para un electivo en neurociencia.
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NEUROMORFOLOGÍA: EL MODELO DECLARATIVO-PROCESAL28 MAR 2011 – DÍA 30 Neurolingüística del español SPAN 4270 Harry Howard Tulane University
ORGANIZACIÓN DEL CURSO • http://www.tulane.edu/~howard/SPAN4130-Neurospan/ • El curso es apto para un electivo en neurociencia. • Neurolinguistics and linguistic aphasiology está en reserva en la biblioteca. • Human Research Protection Program • http://tulane.edu/asvpr/irb/index.cfm • Before beginning research at Tulane University, all research personnel must complete the CITI Training Program; this can be completed at www.citiprogram.org. SPAN 4130 - Harry Howard - Tulane University
REPASO SPAN 4130 - Harry Howard - Tulane University La prueba es el repaso
TAXONOMY OF MEMORY SPAN 4130 - Harry Howard - Tulane University
SUMMARY Procedural memory Declarative memory • is memory for habits & skills • learns rule-like relations in a context • learns quickly, from a single presentation • is not available to other mental modules (= informationally encapsulated) • is mostly unconscious (implicit) • is memory for facts & events • learns arbitrary relations • learns slowly, from many presentations • is available to other mental modules (≠ informationally encapsulated) • is mostly conscious (explicit) SPAN 4130 - Harry Howard - Tulane University
THE NEURAL SUBSTRATE OF DECLARATIVE MEMORY • medial temporal lobe structures • hippocampal region (the dentate gyrus, the subicular complex, and the hippocampus itself) • its input/output cortices: entorhinal cortex, perirhinal cortex, and parahippocampal cortex • some subcortical structures, such as thalamus SPAN 4130 - Harry Howard - Tulane University
THE HIPPOCAMPUS SPAN 4130 - Harry Howard - Tulane University
GENERAL CONTROL OF MOVEMENT BY THE CEREBRAL CORTEX SPAN 4130 - Harry Howard - Tulane University
BASIC SCHEME OF INFORMATION FLOW THROUGH THE BASAL GANGLIA SPAN 4130 - Harry Howard - Tulane University
THE DECLARATIVE/PROCEDURAL MODEL OF LANGUAGE • The declarative memory system subserves the lexicon. • The procedural memory system subserves grammar. SPAN 4130 - Harry Howard - Tulane University
DECLARATIVE MEMORY & THE LEXICON • stores all arbitrary, idiosyncratic word-specific knowledge, including word meanings, word sounds, and abstract representations such as word category • includes representations of simple (non-derivable) words such as cat, bound morphemes such as -ed, irregular morphological forms, verb complements, and idioms • also contains complex forms and abstract structures that are “regular” • supports a superpositional associative memory, which allows for generalizations across representations. For example, the memorization of phonologically similar stem-irregular past tense pairs (e.g. spring – sprang, sing – sang) may allow for memory-based generalization to new irregularizations, either from real words (bring – brang) or from novel ones (spling – splang). This ability to generalize could underlie some degree of productivity within the memory system SPAN 4130 - Harry Howard - Tulane University
PROCEDURAL MEMORY & GRAMMAR • underlies the learning of new, and the computation of already-learned, rule-based procedures that govern the regularities of language • particularly those procedures related to combining items into complex structures that have precedence (sequential) and hierarchical relations • builds rule-governed structure, i.e. the sequential and hierarchical combination – “merging” or concatenation – of forms and representations into complex structures: • syntax (word order) • inflectional and derivational morphology – at least for default “regulars” but also for irregulars that appear to be affixed • phonology (the combination of sounds) • compositional semantics (the meaning of the composition of words into complex structures) SPAN 4130 - Harry Howard - Tulane University
GENERAL CONTROL OF MOVEMENT BY THE CEREBRAL CORTEX SPAN 4130 - Harry Howard - Tulane University
NEUROMORFOLOGÍA SPAN 4130 - Harry Howard - Tulane University
RUTAS SENCILLA VS. DUAL • En un modelo de ruta sencilla, todas las palabras se reconocen por medio del mismo mecanismo: • como palabras enteras en modelos que no hacen una segmentación, o • como morfemas sueltas en modelos que hacen una segmentación. • En un modelo de ruta dual • algunas palabras pasan por una segmentación y otras no, o • todas las palabras pasan tanto por una segmentación como por una analisis como unidad. SPAN 4130 - Harry Howard - Tulane University
¿QUÉ PALABRAS NECESITAN SEMENTACIÓN? SPAN 4130 - Harry Howard - Tulane University
EL PRÓXIMO DÍA SPAN 4130 - Harry Howard - Tulane University Más neuromorfología