It Can Be Inferred from the Chapter's Discussion That Current
It can be inferred from the chapter's discussion that current theories about the brain bases of abnormal behavior
A) have not seriously considered the roles of neurotransmitters and neuronal damage.
B) have given equal weight to the roles of neurotransmitters and neuronal damage.
C) given more weight to the roles of neurotransmitters than to actual neuronal damage.
D) have only considered the role of one neurotransmitter, dopamine.
E) have given more weight to the role of actual neuronal damage than to neurotransmitters.
Which of the following statements concerning neurotransmitters is NOT true?
A) The various neurotransmitters are spread fairly evenly throughout the brain, and are believed to play approximately equal roles in different functions (such as exploratory behaviours).
B) The majority of research concerning neurotransmitters has examined dopamine, serotonin, norepinephrine and (more recently) gamma aminobutyric acid (GABA).
C) Neurotransmitters either inhibit or activate an impulse in the post-synaptic neuron.
D) Neurotransmitters carry their messages across a gap between neurons called a "synapse" or "synaptic cleft".
E) Neurotransmitters are the chemical substances that carry messages from one neuron to the next.
Which of the following is NOT a manner in which disturbances in neurotransmitter systems can result in abnormal behavior?
A) Having certain neurotransmitters working in brain circuits not responsive to those transmitters
B) Having an excess or deficit in the amount of the transmitter-deactivating substance in the synapse
C) Having too much or too little of the neurotransmitter produced or released into the synapse
D) Having too few or too many receptors on the dendrites of the receiving neurons
E) Having the process of reuptake (drawing released neurotransmitters back into the releasing axon) be too rapid or too slow
An experiment by Canadian neurophysiologist Bryan Kolb and his colleagues demonstrated that the offspring of rats raised in a complex environment exhibited
A) decreased synaptic space on the neurons in the their cerebral cortex.
B) increased synaptic space on the neurons in their cerebral cortex.
C) an increase in the speed of neuronal transmission.
D) increased numbers of the neurotransmitter dopamine.
E) a decrease in the speed of neuronal transmission.