Class Notes (835,730)
Canada (509,354)
Psychology (5,217)
PSYCH 2H03 (134)
Lecture

brain imaging technique.docx

3 Pages
80 Views
Unlock Document

Department
Psychology
Course
PSYCH 2H03
Professor
Judith Shedden
Semester
Winter

Description
January 13 , 2013 Psych 2H03: Human Learning and Cognition Brain Imaging Techniques Neural Correlates of Interspecies Perspective Taking in the Post-Mortem Atlantic Salmon: An Argument for Multiple Comparisons Correction - salmon shown a series of images of social human interaction and compared the baseline to the activation when presented with the stimuli - salmon asked what emotion the human must be experiencing - salmon is sensitive to the emotional gallous of people in the pictures - you can’t just look at face value on a picture of the brain and assume you know what it means - statistical test rejected the null hypothesis - for one test only - you have to make sure that you are accounting for comparisons - must be critical when you’re reading results Scintillating Grid: Count the Black Dots - lateral inhibition in central surround cells - different receptive fields in cells, same effect but are represented in different parts of the brain - explains why when looking directly at the dot they appear white as they lie directly on the fovea - cells respond to contrast, respond when there is an edge Brodmann’s Cytoarchitectural Areas of the Human Brain - determined primarily using Nissl and Golgi stains - Brodmann’s: divided the parts he could visually see were different - With new imaging, Brodmann’s areas have been broken up Directional Terms for Referring to Parts of CNS - Rostral: anterior - Caudal: posterior - Dorsal: superior - Ventral: inferior - Axial or horizontal: horizontal plane - Coronal: vertical plane - sagittal: vertical plane cut through the center of the face - lobes:  frontal lobe  temporal lobe  parietal lobe  occipital lobe - cortical folding is critical: if we were to flatten it out it would help us with brain imaging and EEGs - as the cortical sheet is folding (gyri and sulci) individually, the right and left hemisphere have slightly different folds - finding averages PET Technique - inject with radioactive tracer into the blood: cannot rerun the same subject over again - you can inject different kinds of radioactive tracers in order to observe different neurotransmitter systems - indirect measure of brain activity
More Less

Related notes for PSYCH 2H03

Log In


OR

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


OR

By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.


Submit