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Balance

Balance - o Difference thresholds – are these two spots...

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o Balance Stimulus: gravity, acceleration Receptor: mechanoreceptors Sensory structure: vestibular organs Cortex: temporal cortex o Taste/Smell Stimulus: chemical composition Receptor: chemoreceptors Sensory structure: nose, mouth Cortex: primary taste cortex, olfactory cortex Studying the senses o Events outside of ourselves (environment) o Nerve/Brain activity o Subjective experience o Methods Neuroscience methods Lesion experiments Clinical studies Brain imaging Electrophysiological recording Behavioral methods (psychophysics) – the scientific study of relationship between physical stimuli (light, sound, tactile) and perceptual phenomena Measurements include o Detection thresholds – did you see a spot of light
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Unformatted text preview: o Difference thresholds – are these two spots equally bright or is one brighter o Magnitude estimation – how bright is the spot o Perceptual matching – adjust the spot on the left so that is the same color (size, brightness, etc) as the spot on the right • Computer simulation o Human clinical studies Broca’s aphasia – impairment of speech production o Brain imaging studies Types • Positron Emission Tomography • Magnetic Resonance Imaging Electrophysiology • General physiological principles o Transduction – in each system there is a structure that converts environmental stimuli into chemical/electoral impulse brain can process...
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