APHASIA + AGRAMMATISM

APHASIA + AGRAMMATISM

1. BACKGROUND

   • APHASIA
     • Impairment in the understanding + transmission of ideas (reading, writing, speaking).
     • Injury on left hemisphere: loss of lang.; on the right hemisph.: ling. functions remain intact
     • Aphasic syndormes
       • BROCA´S APHASIA
         • Lesion in Broca´s area
         • Agrammatic speech, comprehension of single words+simple sentences, incapacity for repetition
       • WERNICKE´S APHASIA
         • Lesion in left, wernicke area
         • Fluent speech, well articulated, abundant but lacks ling. msn.
         • Speak a lot but meaning is lost, create new words
         • Comprehension+repetition=impaired
       • CONDUCTION APHASIA
         • Fluent speech+comprehension intact
       • GLOBAL APHASIA
         • Inability to: comprehend lang., speech, repeat
     • 3 systems
       • LANG. IMPLEMENTATION SYSTEM
         • Phonemic,+rammatical+articulatory control
       • MEDIATIONAL SYSTEM
       • CONCEPTUAL SYSTEM
   • AGRAMMATISM
     • Impaired lang. production+lang. comprehension
     • TRACE BASED ACCOUNT (TBA)
       • Good comprehenders of active sentences but bad comprehenders of passive sentences
   • GOVERNMENT&BINDING THEORY
     • DOUBLE MODULARITY OF LANG.
       • Lang.= independent + modular
     • UG accounts for how children can learn lang. in such a short time
     • 4 theories
       • X-BAR TH.
       • DEPENDENCY TH.
         • D-Structure
         • S-Structure
         • Phonological form (PF)
         • Logical FORM (LF)
       • THETA TH.
       • CASE TH.

2. AGRAMMATISM+SYNTACTIC MOVEMENT

   • TBA
     • TRACE DELETION HYPOTHESIS (TDH)
       • Broca´s aphasics´impaired passive sentences + unimpaired active sentences
     • DEFAULT STRATEGY
     • TRACE-BASED ACCOUNT (TBA)
     • REFERENTIAL STRATEGYL
   • DOUBLE DEPENDENCY HYPOTHESIS
     • When there are 2 dependencies: representation ambiguous

3. AGRAMMATISM+THETA TH.

   • MAPPING HYPOTHESIS
     • In abnormal comprehension, syntactic representatios are not damaged
     • Problem: to match the syntactic structure with thematic structure

4. AGRAMMATISM+CASE TH.

   • ABSTRCT CASE ASSIGNMENT
     • STRUCTURAL CASE
       • Assigned under government
     • INHERENT CASE
       • Thematic assignment
   • MORPHOLOGICAL CASE
   • CASE+DETERMINERS

5. AGRAMMATIC CONDITION (AC)

   • Condition on the S-Structure

6. TREE PRUNING HYPOTHESIS (TPH)

   • Underspecification in all the nodes in a tree