Cellular Neuroscience Pt1

Question 0

How are MEGs different from ERPs?

Answer 0

better spatial resolution

Question 1

What are the characteristics of ERPs?

Answer 1

excellent temporal resolution but horrible spatial resolution

Question 2

What are benefits and downfalls of single unit recordings?

Answer 2

best spatial and temporal res. but INVASIVE

Question 3

What are fMRIs?

Answer 3

functional MRI with good spatial res and okay temporal res

Question 4

What are CAT scans?

Answer 4

x-rays with better spatial and temporal res than fMRIs

Question 5

What are PETs?

Answer 5

positron emission tomography = functional equivalent to CAT scan (inject radio labelled component)

Question 6

What are the noninvasive tests?

Answer 6

fMRI, PET, CAT, MRI

Question 7

What is Golgi’s RETICULAR theory?

Answer 7

cytoplasmic continuity between nerve cells

never-ending/continuous

Question 8

What is Cajal’s CONTACT theory?

Answer 8

nerve cells are isolated units that interact

* not continuous but individually relate to each other

Question 9

WHo named the nerve cell “The Neuron”

Answer 9

Cajal - argued that it was elementary structural and signalling unit of nervous system

Question 10

How does the information relay in a neuron?

Answer 10

In: dendrite
Out: axon

Question 11

With information in and out of a neuron what does this show?

Answer 11

dynamic polarization

Question 12

What is the space formed between on axon and another dendrite?

Answer 12

synapse

Question 13

What are basket cells?

Answer 13

inhibitory cells

Question 14

What is connection specificity?

Answer 14

a neuron will only communicate with synaptic contacts on specific regions of specific cells

Question 15

What is synaptic plasticity?

Answer 15

nerve cells are modified by experience and practice making connections more efficient

Question 16

What are Cajals 5 principles?

Answer 16

1)The Neuron 2) Dynamic polarization 3)The Synapse 4) Connection Specificity 5) Synaptic Plasticity