Which of the following describes what happens when a neuron sends a signal?
The neuron goes from being negatively charged to briefly being positively charged, and finally returns to being negatively charged again
. The magnitude of the negative charge is fixed regardless of the strength of the input signal it receives.
What is the most appropriate conclusion Dr kornhauser can draw?
What is the most appropriate conclusion Dr. Kornhauser can draw from the results?
Because the connection between the right visual cortex and language center has been severed
, split-brain patients are not able to retrieve the name of objects seen in the left visual field.
What effect do agonists have AP Psychology?
Agonists, on the other hand,
bind to receptor sites and mimic the effects of a specific neurotransmitter
. Opiates are an example of an agonist as they mimic the effects of endorphins in our body (which is why they produce a morphine-like effect). Drugs trick our brains into thinking that they are neurotransmitters.
What is the fatty casing that helps speed up the neural transmissions of a neuron is called the?
Myelin
is a lipid-rich (fatty) substance that surrounds nerve cell axons (the nervous system’s “wires”) to insulate them and increase the rate at which electrical impulses (called action potentials) are passed along the axon.
In which scenario does sunblock serve as a conditioned stimulus?
In which scenario does sunblock serve as a conditioned stimulus?
Lowell feels relaxed when he smells sunblock because it reminds him of his vacations at the beach
.
Which if the following describes what happens when a neuron sends a signal?
Which of the following describes what happens when a neuron sends a signal?
The neuron goes from being negatively charged to briefly being positively charged
, and finally returns to being negatively charged again. The magnitude of the negative charge is fixed regardless of the strength of the input signal it receives.
What is AP Psychology threshold?
the minimum amount of distance between two stimuli that can be detected as distinct
.
What happens during reuptake?
Reuptake is what happens after a signal is transmitted:
The neurotransmitter, its “work” completed, is reabsorbed back into the cell that previously released it
.
What is the main function of glutamate?
Glutamate is a powerful excitatory neurotransmitter that is released by nerve cells in the brain. It is responsible for sending signals between nerve cells, and under normal conditions it plays an important role in
learning and memory
.
What is the nodes of Ranvier?
The nodes of Ranvier are
specialized axonal segments that lack myelin
, allowing the saltatory conduction of action potentials. Important progress has been made in unravelling the fine structure of the nodal environs and in understanding the formation of a node.
What does nerve impulse do?
A nerve impulse is the relaying of a coded signal from a nerve cell to an effector
(a muscle cell, a gland cell or another nerve cell) in response to a stimulus
. … For instance, in neuromuscular junction, the nerve impulse moves along the axon of a nerve cell to instruct a muscle cell to contract.
What happens when myelin sheath is destroyed?
A demyelinating disease is any condition that results in damage to the protective covering (myelin sheath) that surrounds nerve fibers in your brain, optic nerves and spinal cord. When the myelin sheath is damaged,
nerve impulses slow or even stop
, causing neurological problems.
What are examples of positive punishment?
With positive punishment, you add something unpleasant in response to a behavior. For example, a
child chews gum in class
, which is against the rules. The punishment is the teacher disciplining them in front of the class. The child stops chewing gum in glass.
Which of the following is an example of positive punishment?
For example,
spanking a child when he throws a tantrum
is an example of positive punishment. Something is added to the mix (spanking) to discourage a bad behavior (throwing a tantrum). On the other hand, removing restrictions from a child when she follows the rules is an example of negative reinforcement.
What is positive and negative punishment?
Positive punishment involves
adding an aversive consequence after an undesired behavior is emitted to decrease future responses
. Negative punishment includes taking away a certain reinforcing item after the undesired behavior happens in order to decrease future responses.
What is action potential example?
The most famous example of action potentials are found as
nerve impulses in nerve fibers to muscles
. … Action potentials in the heart originate in specialized cardiac muscle cells called autorhythmic cells. These cells are self-excitable, able to generate an action potential without external stimulation by nerve cells.
