What is a Hebb (or Hebbian) synapse, and how is this concept related to LTP?
What will be an ideal response?
A Hebbian synapse is one that changes with repeated stimulation. Hebb theorized that with repetitive signals, a synapse would have larger individual signals. This has been shown to be true, and the mechanism is the underlying one of LTP: repetitive stimulation results in a prolonged time where each signal produces a larger post-synaptic response than before the repetitive stimulation.
You might also like to view...
The areas of the cortex used by expert video game players are most likely to ____ than the same cortical areas of those who do not play video games
a. be thicker b. have smaller, but a greater number of neurons c. have faster action potentials d. be more resistant to transcortical stimulation
Stimulation of the pontomesencephalon ____
a. awakens a sleeping individual b. decreases alertness in someone already awake c. shifts the EEG from short waves to long, slow waves d. delays the onset of the next REM period
According to cognitive psychologists, depression is caused by
a. learned helplessness. b. self-criticism and self-defeating thoughts. c. imbalances of serotonin and noradrenaline. d. repressed anger that is turned inward as self-hate.
Melissa and Anjay are both 12 years old. Melissa is from the United States, and Anjay is from India. When asked to draw a map of their neighborhood, Melissa's map will show __________ than Anjay's map
A) a richer array of landmarks and aspects of social life B) a smaller area surrounding her home C) a more formal, extended space, highlighting main streets and key directions D) fewer features that are actually helpful in providing directions for other people