Language and Aphasias Flashcards
(34 cards)
Neural substrate
neuroscientific term to indicate part of the CNS underlying a specific behavior, cognitive process, or psych state
Broca’s area
Speech-motor center
Wernicke’s area
sensory speech area
Arcuate fasciculus (AF)
Connects Broca’s and Wernicke’s areas
Neurolinguistics
relationship between language and the brain
Neurolinguistic programming (NLP)
psychological approach involving strategies used by successful individuals and applying those individuals to reach a personal goal - related to thoughts, language, and patterns of bx learned through experience, e.g., learning where to put attention in conversations, habitual linguistic patterns, and body language
Brain areas activated in language
Middle and interior temporal gyri
Temporal pole
Fusiform gyri
Lingula
Middle prefrontal areas (dorsolateral prefrontal cortex)
Insula
Right hemisphere contribution to understanding language
Intonation, emotional nuance comprehension, irony, sarcasm, and humor, tone, prosody
Language
complex communication system consisting of a group of sounds and written symbols used by the people of a particular region for writing or speaking
Difference between a language disorder and a speech disorder
speech disorder = trouble making sounds
Language disorder = can produce sounds but has difficulty using them for communication
Expressive language disorder
have difficulty conveying the message when they talk to others
May understand what others say, but struggle to express their own thoughts and ideas through language
Receptive language disorder
difficulty understanding the meaning of what others talk about
Will thus respond to others in ways that don’t make sense
Mixed receptive-expressive language disorder
struggle in both understanding and using language, trouble understanding what others say and being understood
Broca’s aphasia
non-fluent aphasia in which the output of spontaneous speech is markedly diminished and there is a loss of normal grammatical structure, telegraphic and agrammatic
Limited spontaneous speech, inability to repeat statements made during testing, yet able to follow instructions
telegraphic
taking away the grammar and leaving content words (e.g., “ball up” or “foot in”)
agrammatic
slow, effortful, non-fluent speech and usually accompanied by marked reduction in phrase length and syntactic connectivity
Non-fluent aphasia
produce a failure in language expression, written or verbal, and are often associated with pathologies in Broca’s brain area
Wernicke’s area
area in cerebrum responsible for receptive language and speech phenomena in the superior gyrus of the temporal lobe
Wernicke’s aphasia
result of damage to posterior part of the superior temporal gyrus, supramarginal gyrus, and angular gyrus, fluent but empty speech, normal prosody, grammatical inflections, utterances of normal length, poor comprehension
Wernicke’s encephalopathy
degenerative brain disorder caused by lack of B1, marked by confusion, loss of mental activity which can progress to coma/death, ataxia (loss of muscle coordination), leg tremor, and vision changes (abnormal eye movements, nystagmus, double vision, and eyelid drooping)
Paraphasia
speech disturbance resulting from brain damage in which words are jumbled and sentences meaningless
Phonological/phonemic paraphasia
disturbances with speech sounds
Omissions - e.g., tying (trying)
Additions - e.g., slipped on the lice (ice)
Transpositions - e.g., repuceration (recuperation)
Verbal paraphasia /semantic paraphasia
substituted word is related to the intended word (e.g., I spend the whole day working on the television… I mean computer)
Neologisms
Make up fake words