Chapter 2 Quiz PDF

Question 1 1 / 1 pts What is the primary purpose of the cell body in a neuron? Receiving electrical impulses from other neurons. Conducting an electrical signal through a fluid. Holding the mechanism that keeps the cell alive. Receiving environmental stimuli. Question 2 1 / 1 pts The flow of ions th...

Question 1 1 / 1 pts What is the primary purpose of the cell body in a neuron? Receiving electrical impulses from other neurons. Conducting an electrical signal through a fluid. Holding the mechanism that keeps the cell alive. Receiving environmental stimuli. Question 2 1 / 1 pts The flow of ions that create the action potential are caused by changes in what aspect of the nerve fiber? Suppression Permeability Accommodation Assimilation Question 3 Which of the following is NOT a step in synaptic transmission? A signal travels down the axon of a neuron. The nerve impulse causes the release of neurotransmitter molecules. The neurotransmitters fit into receptor sites. Chlorine rushes out of the neuron. 1 / 1 pts Question 4 0 / 1 pts When a neuron is at rest, its electrical potential is er d –70 millivolts. +70 millivolts. –40 millivolts. +40 millivolts. Question 5 1 / 1 pts The question of how physiologic processes cause our experiences is known as the neuro-physiological question. mind-body problem. causation-correlation problem. stimulus-experience question. Question 6 The principle that specific functions are served by specific cortical areas is called magnification. modularity. distribution. segmentation. 1 / 1 pts Question 7 1 / 1 pts Individuals with stronger functional connectivity have a lower response rate. perception threshold. sensitivity. detection threshold. Question 8 1 / 1 pts Which type of coding is the representation of a particular object by the pattern of firing of a large number of neurons? Specificity Population Extrastriate Sparse Question 9 The rate of firing of the postsynaptic neuron depends on the amount of what type of input? Excitation only Inhibition only Equalization Both excitation and inhibition 1 / 1 pts Question 10 1 / 1 pts The three major parts of a neuron are dendrites, cell body, and axon. axon, nerve fiber, and receptor. receptor, transmitter, and median. receptor, dendrites, and conductor. Question 11 1 / 1 pts One limitation of fMRI is that it cannot identify the activity of sections of the brain. detect the activity of individual neurons. detect blood flow to areas of the brain. identify a baseline level of activity. Question 12 1 / 1 pts In the “Halle Berry” study, Quiroga et al. found that the Halle Berry neuron is best described as responding to what regarding Ms. Berry? Visual features Face Associations Concept Question 13 1 / 1 pts What is the structure that allows ions into the axon during the rising phase of the action potential? Ion channel Potassium channel Charge pathway Sodium channel Question 14 1 / 1 pts When your body perceives a painful stimulus and simultaneously responds with multiple components, it is an example of neural representation. multiple representation. distributed representation. diffuse representation. Question 15 Which type of ion flows into the neuron when a signal starts to come through the axon? K+ Na+ Cl- NaCl 1 / 1 pts Question 16 1 / 1 pts Quiroga et al. (2008) studied sensory coding by _____. ablation of the IT in humans ablation of the FFA in humans using implanted electrodes in the limbic system of college student volunteers using implanted electrodes in the temporal lobe of epileptic patients Question 17 1 / 1 pts What is a way to record the signal from a single neuron? A recording electrode and a reference electrode can measure the difference in charge. An fMRI scan can single out a single neuron. An EEG will record individual neurons. Two recording electrodes can measure the difference in charge. Question 18 A “grandmother” cell is a neuron that fires in response to one specific stimulus. fires in response to seeing close relatives. fires when viewing faces. causes other neurons to have similar responses. 1 / 1 pts Question 19 1 / 1 pts The brain imaging technique that creates images of the structures in the brain but cannot indicate neural activity is fMRI. ablation. PET scan. MRI. Question 20 As stimulus intensity is increased, recording from a single neuron shows that the amplitude of the action potential increases. the amplitude of the action potential decreases. the amplitude of the action potential may increase or decrease, depending on the stimulus. the rate of firing of the nerve fiber increases. 1 / 1 pts