Neuroanatomical Methods

Question 1

cytoarchitectonic mapping

Answer 1

dividing brain from cell density and shapes

Question 2

myeloarchitectonics mapping

Answer 2

looking at fibers to divide maps

Question 3

chemoarchitectonics mapping

Answer 3

finding stains that just stain for ACh cells, etc.

Question 4

what are 2 areas that are easy to distinguish from nissl stain?

Answer 4

primary cortex, and area 17 vs 18. everything else is pretty hard to distinguish

Question 5

layer 4 also known as the…

Answer 5

…granule cell layer

Question 6

layer 4 goes from where to where?

Answer 6

input from thalamus to cortex

Question 7

layer 1 is mainly…

Answer 7

…fibers

Question 8

classic definition of brain area:

Answer 8

FACT:
Function (physiology and lesion studies)
cyto/myelo/chemo- Architectonics
connections
topography

Question 9

what’s nice about viral (like rabies and alpha herpes) tracers, but also means you have to be very precise?

Answer 9

they cross synapses. can stain excessively if you’re not careful

Question 10

where did ramon y cajal determine that entorhinal cortex projects to?

Answer 10

hippocampus

Question 11

where are place cells?

Answer 11

the dorsal part of the hippocampus in the rodent, which would be the posterior part in the human. (top of rodent hippocampus c folds back flat in human)

Question 12

are there place cells in monkey hippocampus?

Answer 12

maybe not, but there are view cells

Question 13

1 major projection to lateral entorhinal area in rodent

Answer 13

piriform cortex

Question 14

describe topology in cerebellum

Answer 14

anterior-posterior: foot to head. connected to topology in primary motor cortex

Question 15

network, as found from fmri studies

Answer 15

distinct areas that are identified from connectivity. correlated activity