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Psych 1010- Test #1
Chapters 1-3
Question | Answer |
---|---|
What is the study of the nervous system called? | Neuroscience |
When referring to the brain, what is plasticity? | The brain's vast capacity for modification and change |
Afferent Nerves do what? | Carry information to the brain |
Efferent Nerves do what? | Carry information to the brain and spinal cord |
This is made up of nerve cells and integrates sensory input and motor output | Neural Networks |
Integration is what? | The brain's ability to take all the information from all the senses to make sense of the environment. |
What is the body's electrochemical communication system called? | Nervous System |
The Central Nervous System is comprised of what? | Brain and Spinal Cord |
The Peripheral Nervous System consists of what? | The nerves that connect the brain and spinal cord to the rest of the body |
What are the two subsystems in the Peripheral Nervous System? | Somatic Nervous System and Autonomic Nervous System |
What two systems are part of the Autonomic Nervous System? | Sympathetic Nervous System and Parasympathetic Nervous System |
The Sympathetic Nervous System does what? | Prepares a person for a stressful situation (Fight) |
The Parasympathetic Nervous System does what? | Calms the body down after a stressful situation (Flight) |
What is momentary stress called? | Acute Stress |
What is stress that occurs continuously called? | Chronic Stress |
What are the nerve cells called that control the information-processing function? | Neurons |
What are Neurotransmitters? | They are neurochemical messengers- they carry electrical information |
What are low levels of GABA involved in? | Anxiety |
Low levels of Dopamine are associated with what? | Parkinson's Disease |
Depression is associated with low levels of what? | Serotonin |
What is a drug that mimics a neurotransmitter called? | Agonist |
What is a drug that blocks a neurotransmitter called? | Antagonist |
What system consists of glands that regulate certain organs by releasing their chemical products/hormones into the bloodstream? | Endocrine System |
What is a persons genetic heritage called? | Genotype |
How many chromosomes should each person have? | 46/23 pairs |
What is Selective Breeding? | Occurs when organisms are chosen for reproduction based on a particular trait they display. |
What is Sensation? | The process through which the senses detect environmental stimuli and transmit it to the brain. |
What is Perception? | The process by which the brain actively organizes and interprets the information that is sent to the brain. |
What is the type of processing called in which information from the external environment is registered and send to the brain for interpretation? | Bottom-pp Processing |
What is the type of processing called that occurs at higher levels and includes the information that a person is already familiar with? | Top-down Processing |
What are the receptors call that detect and transmit information to the sensory nerves in the brain? | Sensory Receptors |
What is the minimum amount of energy needed for a person to detect something (noise, taste, touch, etc.) | Absolute Threshold |
What is the difference that must exist between two stimuli in order the difference can be detected? | Difference Threshold |
What is "Weber's Law"? | Its the idea that two stimuli must different by a constant minimum percentage, to be perceived as different. Ex. 20 candles vs. 100. |
A predisposition to perceive something in a particular way is a what? | Perceptual Set |
What is Gestalt Psychology? | It it the belief that the "whole is more than the sum of its parts" and believes this is how people naturally organize perceptions. |
What is a neurotransmittesr that functions as a natural opiate in producing pleasure and pain? | Endorphins |