PSYCH 2GG3 Lecture Notes - Lecture 5: Model Organism, Morris Water Navigation Task, Lidocaine
Document Summary
Lecture 5 place cells cells in hippocampus. Goes into action potentials in relation to a place that the animal is in (in a particular environment) A neuron that becomes active when the animal is in a particular location in the environment. Evidence indicates that firing of hippocampal place cells appears to reflect the location where an animal thinks it is. Just before testing the animal"s performance, investigators temporarily inactivated specific regions of animals" brains with intracerebral infusions of lidocaine. If the hippocampus was inactivated 1 day after training vs. inactivated 30 days after training. Inactivation of several regions of the cerebral cortex impaired memory retrieval 30 days after training, but not 1 day after training. This shows that the hippocampus is engaged in tasks closely after you have learnt about them. Shows that the cortex is engaged in tasks later after you have learnt about them (recalls)
