🔑 Key Definitions
Dyslexia: Reading disorder that can manifest differently depending on writing system; more common in phonetic languages
Conduction Aphasia: Disconnection between Broca's and Wernicke's areas; can't repeat words despite intact comprehension and production
Anomic Aphasia: Word-finding difficulty; patients understand and can describe but can't name objects
Circumlocution: Talking around a word; "thing you write with" instead of "pen"
Conduction Aphasia: Disconnection between Broca's and Wernicke's areas; can't repeat words despite intact comprehension and production
Anomic Aphasia: Word-finding difficulty; patients understand and can describe but can't name objects
Circumlocution: Talking around a word; "thing you write with" instead of "pen"
🧠 Dyslexia & Writing Systems
- English (Phonetic): High dyslexia rates; inconsistent sound-letter correspondence; "tough," "though," "through"
- Chinese (Pictographic): Different type of dyslexia; characters represent meanings, not sounds
- Japanese Kanji: Pictographic characters; dyslexia affects character recognition
- Japanese Kana: Phonetic syllabary; separate processing from Kanji
- Language-Specific: Dyslexia manifests differently based on writing system's demands
🧠 Conduction Aphasia
- Disconnection Syndrome: Arcuate fasciculus (pathway between Broca's and Wernicke's) damaged
- Can Understand: Wernicke's area intact; comprehension preserved
- Can Speak: Broca's area intact; production preserved
- Cannot Repeat: Can't transfer information between areas; repetition severely impaired
🧠 Anomic Aphasia
- Naming Deficit: Specific difficulty retrieving object names
- Circumlocution: Describe function instead of naming; "you drink from it" for "cup"
- Intact Functions: Comprehension and general speech production preserved
- Most Common: Often seen in various neurological conditions, including Alzheimer's
💡 Exam Tips
- Dyslexia is language-specific: English (phonetic issues) vs Chinese (visual recognition issues)
- Japanese has TWO systems: Kanji (pictographic) and Kana (phonetic) - can be selectively impaired
- Conduction aphasia = disconnection; areas intact but can't communicate with each other
- Key sign of conduction aphasia: CANNOT REPEAT despite intact comprehension and production
- Anomic aphasia = word-finding problem; circumlocution is characteristic strategy
- Remember: different writing systems engage different brain processes