How are MEGs different from ERPs?
better spatial resolution
What are the characteristics of ERPs?
excellent temporal resolution but horrible spatial resolution
What are benefits and downfalls of single unit recordings?
best spatial and temporal res. but INVASIVE
What are fMRIs?
functional MRI with good spatial res and okay temporal res
What are CAT scans?
x-rays with better spatial and temporal res than fMRIs
What are PETs?
positron emission tomography = functional equivalent to CAT scan (inject radio labelled component)
What are the noninvasive tests?
fMRI, PET, CAT, MRI
What is Golgi’s RETICULAR theory?
cytoplasmic continuity between nerve cells
What is Cajal’s CONTACT theory?
nerve cells are isolated units that interact
* not continuous but individually relate to each other
WHo named the nerve cell “The Neuron”
Cajal - argued that it was elementary structural and signalling unit of nervous system
How does the information relay in a neuron?
With information in and out of a neuron what does this show?
What is the space formed between on axon and another dendrite?
What are basket cells?
What is connection specificity?
a neuron will only communicate with synaptic contacts on specific regions of specific cells
What is synaptic plasticity?
nerve cells are modified by experience and practice making connections more efficient
What are Cajals 5 principles?
1)The Neuron 2) Dynamic polarization 3)The Synapse 4) Connection Specificity 5) Synaptic Plasticity