Biology of Mind Study Guide
The Biology of Mind
Neuron Communication
Neuron is a nerve cell, basic building block our nerve system
Neurons consists in:
Dendrites : neurons bushy branches and it listens
Axons: Tube that passes the messages and it speaks – transmit
Action potential : is a neural impulse, brief electrical charge that travels down an axon.
Threshold: is the level of stimulation required to trigger a neural impulse
Myelin Sheath covers an axon and some neurons
Synapse : is the junction between the axon tip of the sending neuron and the dendrite or cell body of the receiving neuron.
Excitatory signal is pushing a neuron accelerator
Inhibitory signal is like pushing a brake
All-in-one-response is a neuron response to stimulation , meaning that the intensity of the stimulus determines whether is excitatory or Inhibitory .
Neurotransmitters: is a chemical messengers that cross the synaptic gaps between neurons.
How do Neurotransmitters influences behavior?
Influences on hunger and thinking, depression and euphoria, addiction and therapy .
Neurotransmitters pathways : each of the brain’s differing chemicals messengers has designated pathways where its operates.
Seratonin Pathway : affects mood, hunger , sleep, and arouse Ex malfunction: undersupply is linking to depression , Prozac and some others anti depression drugs raises serotonin level
Dopamine Pathway: Influences movements, learning attention and emotion. Ex malfunction: excessive Dopamine is linked to schizophrenia and absence of dopamine the brain produces tremors and decrease mobility of Parkinson’s disease.
Acetylcholine : enables muscle action, learning and memory. Ex malfunction: with Parkinson ‘s disease , Ach- producing , neurons deteriorate.
Norepinephrine : Helps control alertness and arouse . Ex malfunction: under supply can depress mood.
Endorphins: Lessen pain and boost mood. Ex malfunction: If fooled w/ artificial opiates , the
Neuron Communication
Neuron is a nerve cell, basic building block our nerve system
Neurons consists in:
Dendrites : neurons bushy branches and it listens
Axons: Tube that passes the messages and it speaks – transmit
Action potential : is a neural impulse, brief electrical charge that travels down an axon.
Threshold: is the level of stimulation required to trigger a neural impulse
Myelin Sheath covers an axon and some neurons
Synapse : is the junction between the axon tip of the sending neuron and the dendrite or cell body of the receiving neuron.
Excitatory signal is pushing a neuron accelerator
Inhibitory signal is like pushing a brake
All-in-one-response is a neuron response to stimulation , meaning that the intensity of the stimulus determines whether is excitatory or Inhibitory .
Neurotransmitters: is a chemical messengers that cross the synaptic gaps between neurons.
How do Neurotransmitters influences behavior?
Influences on hunger and thinking, depression and euphoria, addiction and therapy .
Neurotransmitters pathways : each of the brain’s differing chemicals messengers has designated pathways where its operates.
Seratonin Pathway : affects mood, hunger , sleep, and arouse Ex malfunction: undersupply is linking to depression , Prozac and some others anti depression drugs raises serotonin level
Dopamine Pathway: Influences movements, learning attention and emotion. Ex malfunction: excessive Dopamine is linked to schizophrenia and absence of dopamine the brain produces tremors and decrease mobility of Parkinson’s disease.
Acetylcholine : enables muscle action, learning and memory. Ex malfunction: with Parkinson ‘s disease , Ach- producing , neurons deteriorate.
Norepinephrine : Helps control alertness and arouse . Ex malfunction: under supply can depress mood.
Endorphins: Lessen pain and boost mood. Ex malfunction: If fooled w/ artificial opiates , the