Lecture 1 Flashcards
What is plasticity?
Networks of the brain cells change
What is neurogenesis?
New generations of neurons in the adult brain (plasticity?)
What is behavioral neuroscience
Study of behaviors that are observed in organisms, and trying to understand what role the nervous system plays.
- Has many other names too
What is the primary function of the nervous system, perception, thinking and learning/remembering
- The nervous system is for controlling movement
- Perception allows you to act on the environment.
- Thinking allows you to do complex behavior.
Remembering/learning allows you to profit from experience.
What are generalization and reductions in scientific explanation?
- generalization means you explain something using general laws.
- Reduction: you explain something using simpler phenomena
What did Hippocrates say about the brain?
It, rather than the heart, was where emotion and thought happened
What did rené Descartes say about the brain?
- Believed in a dualism. The fluids in ventricles was controlled by the mind.
What is the mind body question?
- Dualism says mind and body are separate
- Monism says mind results from neural activity.
What did Luigi Gavalni discover?
- Muscles contract when electrically stimulated (without a brain).
What did Johannes Müller experiment with? What is the doctrine of specific nerve engines
- he removed organs and tested their response to chemicals.
- doctrine of specific nerve engines says that nerves always send the same electric signal but their are perceived differently according to the brain area’s function. The mind only has access to to these signals and not physical stimuli.
What is experimental ablation?
Removing a brain area to see what functions cannot be performed without is
What are Purkinje Fibers?
Neurons that control the heart, first to be discovered
What did Cajal Argue about the nervous system?
Neurons are separate instead of one flow, like blood
What does functionalism say about parts of an organism?
- each part serves some function
What are mutations?
Changes in chromosomes that can have a selective advantage or disadvantage.