literite.blogg.se - Understanding psychology by feldman 11th edition

Learning Objective: 02-03 How does the nervous system communicate electrical and chemical messages from one part to another? In the nervous system, neurotransmitters are stored in the neuron’s dendrites.Due to the action potential, they may be connected with no more than one to two hundred other neurons. The longer and thicker the axon the more rapid the impulse.Topic: 02-04 Neurotransmitters: Multitalented Chemical Couriers They perform in an identical manner regardless of their location in the nervous system.

Neurotransmitters are always consistent in their actions.

Topic: 02-03 Where Neurons Meet: Bridging the Gap

The speed with which an action potential moves down the axon is determined by the axon’s size and the thickness of its myelin sheath.

A neuron’s resting state has a negative electrical charge of about 10 millivolts (a millivolt is one one-thousandth of a volt).

The dendrite physically holds the neuron in place.

Learning Objective: 02-02 What are the basic elements of the nervous system?

Mirror neurons suggest that the capacity of even young children to imitate others may be an inborn behaviour.

As many as 1 in 10 individuals diagnosed with the Parkinson’s disease are under the age of 40.

The preliminary symptoms of Parkinson’s disease include tremors, rigidity, and slow movement.Learning Objective: 02-01 Why do psychologists study the brain and the nervous system? Fox has been diagnosed with an early on-set case of Alzheimer’s disease. Essentials Of Understanding Psychology 6Th Canadian Edition By Robert S Feldman – Test Bank