Chapter 2 Quiz
Josiah is trying to speak to his wife, but his speech is very slow and labored, often with jumbled sentence structure. Josiah may have damage to which area of the brain?
Broca's area
Brain imaging has made it possible to: a. determine which areas of the brain are involved in different cognitive processes. b. show how environmental energy is transformed into neural energy. c. view individual neurons in the brain. d. view propagation of action potentials.
a. determine which areas of the brain are involved in different cognitive processes
Before the advent of intercoms, old mansions had a sash in each room. Each sash was connected to a bell on a master board in the servants' office. When someone pulled a sash in a particular room, a bell corresponding to the room would ring on the master board, informing a servant where to go to provide assistance. This system is similar to which of the following? a. Specificity coding b. Localization coding c. Sparse coding d. Population coding
a. specificity coding
A synapse is:
the gap that separates two different neurons
If the intensity of a stimulus that is presented to a touch receptor is increased, this tends to increase the __________ in the receptor's axon.
rate of nerve firing
Which of the following is consistent with the idea of localization of function? a. Specific areas of the brain serve different functions. b. Brain areas are specialized for specific functions. c. All of these are correct. d. Neurons in different areas of the brain respond best to different stimuli.
c. all of these are correct
Neurons that respond to specific qualities of objects, such as orientation, movement, and length, are called _________.
feature detectors
The __________ lobe of the cortex receives information from all of the senses and is responsible for coordination of the senses, as well as higher cognitive functions such as thinking and problem solving.
frontal
Barbara has recently been diagnosed with abdominal cancer. Her oncologist wants to determine the best treatment method to eliminate the tumors. Her gastroenterologist is focused on relieving her symptoms and restoring normal digestive functioning. Barbara's psychologist works to help minimize her anxiety and keep her spirits up. The fact that these doctors are considering Barbara's situation with different goals and from different perspectives is similar to the idea of __________ presented in your textbook.
levels of analysis
What is a key difference between dendrites and axons?
one sends information and the other receives information
The theory that a stimulus is represented by that pattern of firing of a large number of neurons is called _____________.
population coding
The fusiform face area (FFA) in the brain is often damaged in patients with _____________.
prosopagnosia
When conducting an experiment on how stimuli are represented by the firing of neurons, you notice that neurons respond differently to different faces. For example, Arthur's face causes three neurons to fire, with neuron 1 responding the most and neuron 3 responding the least. Roger's face causes three different neurons to fire, with neuron 7 responding the least and neuron 9 responding the most. Your results support __________ coding.
sparse
