Lecture 16 Speech and Intox

Lecture 16 Speech and Intox - LIN 4930 Voice, Speech, and...

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LIN 4930 Voice, Speech, and Intoxication
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Ethanol Intoxication Process Absorption of alcohol by the body Water soluble, absorbed almost exclusively by the small intestine (80%) and stomach (20%) Absorption rate variable (food, drugs) Distribution of alcohol by the body Absorbed by any part of the body that absorbs water Diffusion is rapid due to blood flow and continues until alcohol concentration in tissues = blood stream Brain sooner than muscular tissue Alcohol elimination 90 – 98% is metabolized, the rest is excreted
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Ethanol Intoxication Process Measurement of alcohol concentration Blood-alcohol concentration (BAC) Grams alcohol per 100 ml blood Breath-alcohol concentration (BrAC) Weight alcohol per volume breath (alcohol passes easily from the blood stream to the alveolar Often converted to BAC scale Ex: 0.08% limit for driving
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BAC/BrAC Curve
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General Behavioral Effects Visual System Impairment of dynamic visual acuity
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Lecture 16 Speech and Intox - LIN 4930 Voice, Speech, and...

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