History of Psychology: Exam 2

Egyption Heiroglyphs from 17th C. BCE

Discovered conxciousness ends when head is severed from body

Found no reaction from a decapitated head

1. Doctrine of the skull: Intelligence and Personality "Faculties" are localized in the brain --> skull topography 2. Faculty Psych: Examination of bumps and depressions on skull to determine strengths and weaknesses of mental faculties.

1. Apprentice to Gall. 2. Phrenology (similar to faculty psych, but Gall refused to be associated with phrenology).

1. Did not believe brain is localized 2. Extripation: Lesion brain regions then note consequences (experimented on cats). Found that if you destroy the cerebellum, motor coordination and equlibrium is disturbed. If you destroy cerebral cortex, subject becomes passive. 3. Action Commune: Brain is not localized but functions as an integrated system toward a common action: Unity

1. Studied Leborgne (could only say "Tan"), who had been unable to speak for more than 30 years 2. Expressive Aphasia 3. "Broca's Area"

Loss of articulate speech

Section of left frontal lobe involved in production of speech

1. Wernicke's Aphasia 2. Wernicke's Area

Articulate speech but without meaning (word salad)

Section of the left temporal lobe involved in the comprehension of speech

Synaptic Transimission, reticular theory

(Camillo Golgi's theory). Nerve cells are physically connected to each other in a complex network of axons and dendrites

Neuron Theory: Nerve cells are independent units seperated by a narrow gap