Parts of the brain
Function of pons
- influences sleeping and dreaming
- coordinates movements between right and left side of the body
What are neurotransmitters?
Chemical communicators that send messages across a synapse gap
Define heridity
genetic transfer of characteristics from parent to offspring
What percent of what we do is unconscious?
80-90%
What is the endocrine system?
The body's slow communication system that moves through hormones in the bloodstream.
What are the parts of the limbic system and what does it influence
influences memory, learning, motivations, and emotion
- thalmus, hypothalmus, hippocampus, amyglada, basal ganglia
What causes a neurotransmission?
Action potential which opens calicium voltage gates to release neurotransmitters
Define cerebral cortex
intricate fabric of interconnected neural cells covering cerebral areas
- control/information processinh center
What can effects of brain damage be traced to
1. Neurons in the brain/ spin that have been severed or don't generate
2. preassigned brain function can be traced to locations within brain
How does a pain reflex work?
Neural activity travels through sensory neurons, to interneurons in the spinal cord, causing the body to react
How is the brain divided
(name each division)
Divided into 4 lobes
- frontal, temporal, parietal, occipital
What neurotransmitter affects mood, hunger, sleep, arausal, and self esteem
Seratonin
Define neurogenesis
Formation of new neurons
How did researchers identify a synapse in neurotranmission?
Noticed a gap in the time of transmission.
What effect does environment have on personality?
There is not one!
What parts of the body require the most cortical space
Sensory areas that need precise control
What are the divisions of the nervous system?
Parasympathetic, sympathetic, and automatic
Define agonist/antagonist
Agonist: molecule that increases neurotransmitters acton
antagonist: molecule that blocks neurotransmitters action
What happens when there is an oversupply of dopamin?
Can lead to schizophrenia
What was ganzzniga's expirement?
Had split brain patients stare at HE- ART, patients identified he, but pointed at art, allowed him to figure out what each brain hemisphere works towards.