Lecture2

Lecture2 - -functional MRI (fMRI)-diffusion tensor MRI

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Lecture 2 Phrenology: Steps forward and steps backwards -Phrenology, the correlation of bunps on the skull with personal traits, was misguided in most respects -Phrenology was modern in its acceptance that functions may be localized in the brain. Paul Broca (language) and Fritsch and Hitzig (motor systems) furthered the concept of localization of function in the brain. Hughlings-Jackson proposed that the nervous system acted as a hierarchy -simple processing is carried out by lower levels -sophisticated processing is carried out by the cortex Methods in Bio-Psych -histology and light microscopy -electron microscopy -autopsy -computerized tomography (CT) -positron emission tomography (PET) -magnetic resonance imaging (MRI)
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: -functional MRI (fMRI)-diffusion tensor MRI (DTI)-electroencephalography Histology-tissue to be viewed must be fixed by freezing or formation sliced thinly by a microtome-Stains applied to highlight structures of interest single cells (golgi) Cell bodies (Nissi) pathways (tracers such as horseradish peroxidase) cells expressing specific proteins (tagged antibodies) Electron Microscopy (nano-anatomy) slices thin, 90nm CT scan-CT scanners use x-rays to produce high resolution images of soft tissue like the brain-cons- exposure to radiation PET- measures brain activity based on utilization of glucose or oxygen MRI-uses magnetism and radio waves-very high resolution...
View Full Document

Ask a homework question - tutors are online