AAAS 190FS Lecture Notes - Lecture 1: Brain Mapping, Functional Magnetic Resonance Imaging, Phoneme

• School: Duke University
• Department: African and African American S
• Course: AAAS 190FS
• Professor: Brizel& Serafini

Document Summary

Analysis of naming errors during csm: implications for models of language representation. Provides rare and valuable means of mapping critical language function. Prior: approximately 60 slides containing black-and-white line pictures (semantic stimuli) were shown to the patient, and any slide that caused error was removed before csm. No-response errors: (54%) stimulation leads to lack of naming response; differentiated from the no-response results of stimulating motor-speech areas. Performance errors: (16. 4%) form-based distortions such as a slur, stutter, or imprecise articulation. Semantic paraphasias: (15. 1%) patient substitutes semantically-related word for target word (ex: horse" for a pic of a cow, car" for a pic of a train) Phonological paraphasias: (7. 4%) errors in phoneme selection (ex: p" vs b" in. Neologisms: (4. 0%) possible but non-existent words used instead of target word, typically follows phonotactics of the language (ex: herp" instead of fish") Insertion of a segment into the target form (ex: plant" instead of pant": discuss the no-response errors.