Research Methods
This is a testable prediction about the relationship between two or more variables.
What is a hypothesis?
It insulates axons and speeds up the transmission of electrical signals between neurons.
What is the function of the myelin sheath?
The basic unit of the nervous system.
What is the neuron?
It coordinates voluntary movements such as posture, balance, and motor learning.
What does the cerebellum control?
The body's internal 24-hour cycle that regulates sleep, wakefulness, and other physiological processes.
What is circadian rhythm?
A research design in which both the participants and the experimenters are unaware of which participants are receiving the treatment or the placebo.
What is a double-blind study?
It transmits messages across the synapse between neurons, allowing communication within the brain and nervous system.
What does a neurotransmitter do?
It carries electrical impulses away from the neuron's cell body toward other neurons or muscles.
What does an axon do?
It is involved in processing emotions, especially fear and aggression.
Function of the amygdala?
Stage of sleep where dreaming occurs.
What is REM sleep (Rapid Eye Movement)?
A detailed examination of one individual or group to explore psychological phenomena, such as Phineas Gage's brain injury case.
Example of a case study?
It influences mood, motivation, reward, and motor control. It's involved in feelings of pleasure and reward.
What does dopamine affect?
Receives incoming signals from other neurons.
What are dendrites?
At the back of the brain, primarily involved in visual processing.
Where is the occipital lobe located?
It occurs during deep non-REM sleep, often triggered by factors like stress, sleep deprivation, or alcohol.
What causes sleepwalking?
A research method where participants answer questions about their behaviors, thoughts, or attitudes
What is a survey?
A brief electrical charge that travels down an axon, allowing neurons to communicate.
What is an action potential?
The process by which a signal is passed from one neuron to another through the release of neurotransmitters at the synapse.
What is synaptic transmission?
It regulates bodily functions such as hunger, thirst, temperature, and emotional responses. It also controls the pituitary gland.
Role of the hypothalamus?
A sleep disorder characterized by difficulty falling or staying asleep.
What is insomnia?
If a study on sleep and memory doesn’t control for caffeine intake, we can’t be sure sleep alone caused the change in memory
an example of how a research study might lack internal validity.
It's the process by which neurotransmitters are reabsorbed into the presynaptic neuron after they have been released into the synapse.
How does reuptake work?
They play a key role in controlling mood, memory, learning, and various bodily functions by affecting neuron activity.
How do neurotransmitters influence behavior?
It controls vital involuntary functions such as breathing, heart rate, and blood pressure.
What does the medulla control?
This sleep disorder involves uncontrollable sleep attacks, often accompanied by sudden muscle weakness.
What is narcolepsy?