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18 Jan 2011
School
Department
Course
Professor
Psychology Lecture 4
-Washoe’s performance is not an act of language because it is a complicated process to teach him
the symbols and their meanings
-while human can learn language at an early age effortlessly
Functional Magnetic Resonance Imaging (fMRI) Study
-measures the active area in brain when a human is engaged in speaking
-scanner of the brain
-advantage that X-ray does not have is it can produce image of soft tissue whereas X-ray can
only produce image of bone
-in this case, the rhyming (similarity in sound) task
-male has active localization in the left hemisphere
-female has some active localization in both left and right hemisphere
-fMRI measures the depletion of oxygen in the blood
-brain sends a signal to the cardiovascular system to send oxygenated blood to brain region that
involves in activity during the task
-when people are outputting rhyme, more oxygenated blood is sent in a particular region when it
is not engaged in activity
-colour shown in the picture of the brain is symbolic, the brain does not actually light up during
the task
-fMRI relies on blood oxygenated level dependence, which is also the response of the people
Pros and Cons of fMRI
-good with spatial resolution
-can look deeply in the brain
-not good with tempo resolution
-cannot track fraction of the second of the brain’s activity
EEG
-technology that involves electrode that picks up small current at the surface of the skull for
activity
-pros and cons of EEG
-less expensive
-quick with tempo resolution
-not good with localization of brain
Positron Emission Tomography (PET) Scan
-inject isotope as tracer in the body
-use scanner to pick up where blood is going
Wernicke’s area
-responsible for sound signal
-recognize sequence of sound and interpretation of meaning of phoneme
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Document Summary

Washoe"s performance is not an act of language because it is a complicated process to teach him the symbols and their meanings. While human can learn language at an early age effortlessly. Measures the active area in brain when a human is engaged in speaking. Advantage that x-ray does not have is it can produce image of soft tissue whereas x-ray can only produce image of bone. In this case, the rhyming (similarity in sound) task. Male has active localization in the left hemisphere. Female has some active localization in both left and right hemisphere. Fmri measures the depletion of oxygen in the blood. Brain sends a signal to the cardiovascular system to send oxygenated blood to brain region that involves in activity during the task. When people are outputting rhyme, more oxygenated blood is sent in a particular region when it is not engaged in activity.

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