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ch 3 psychobiology
Terms in this set (59)
what are the two parts of the CNS?
brain and spinal cord
what is the name given to the cluster if neurons outside the CNS?
The cell bodies of sensory neurons that are in clusters neurons outside the spinal cord are
dorsal root ganglia
Gray matter in the brain and spinal cord is mainly composed of what structures?
cell bodies and dendrites
Which activity is increased by the sympathetic nervous system?
are closely linked and often act as a single system
The parasympathetic nervous system has:
long preganglionic and short postganglionic axons
Acetylcholine is the only neurotransmitter released by:
the parasympathetic nervous system's postganglionic axons
the hindbrain consists of
medulla, pons, cerebellum
The pons acts as a bridge between:
one side of the nervous system and the other
Vision is to ______ as hearing is to ______.
cranial nerve II; cranial nerve VIII
The thalamus can be thought of as a(n):
membrane that surround the brain and spinal cord are
The large bundle of axons connecting the two hemispheres of the brain is called the:
Cortical blindness may result from the destruction of:
Following damage to the temporal lobe, monkeys that fail to display normal fear of snakes most likely have which of the following?
Kluver- Bucy syndrome
The "binding problem" is the issue of how we:
perceive visual, auditory and other aspects of a stimulus as a single object
the area of the brain known to be important for "binding" is the:
The only area of the cerebral cortex known to receive input from ALL sensory modalities is the:
Together, the somatic nervous system and the autonomic nervous system make up the ______ nervous system.
The Central Nervous System consists of:
the brain and spinal cord
The system that prepares the organs for vigorous fight-or-flight activity is:
sympathetic nervous system
The basal ganglia are ________ the thalamus.
Clench and unclench both hands while looking at your right hand and its reflection in the mirror. After a couple of minutes, you may start to experience the hand in the mirror as being your own _______ hand.
In humans and most other mammals, the cerebral cortex contains up to ______ distinct
The primary somatosensory cortex in the ______ lobe.
The prefrontal cortex constitutes a larger proportion of the ______ brain than of ______.
Using a stereotaxic instrument, we can:
- locate brain areas in small animals
- insert an electrode into the brain of an animal to stimulate or damage any point in the brain
what does EGG stand for?
The differences between phrenologists in the Gall's era and phrenologists
(neuroscientists) in the modern era are:
- neuroscientists today look into the brain not the skull
- neuroscientists today do not localize the function such as "secretiveness" or "marvelousness"
In which way do men and women differ most?
men has more total white matter
t or f Humans have a higher brain-to-body ratio than all other species.
t or f Neurons that directly convey messages to muscles and glands are part of the central
If you fell asleep on a sunny beach lying on your stomach, then your dorsal side would
likely be sunburned.
t or f The elbow is more distal to the shoulder than the hand.
t or f Cell bodies of motor neurons are located outside of the spinal cord.
t or f The parasympathetic nervous system activates the "fight or flight" response.
t or. f The sympathetic and parasympathetic nervous systems generally have opposing actions
on the major internal organs.
t or f Ganglia in the parasympathetic system are arranged in a chain near the spinal cord.
t or f Parasympathetic neurons use acetylcholine as their neurotransmitter.
t or. f The hindbrain consists of the medulla, the pons, and the cerebellum.
t or f Damage to the medulla is frequently fatal.
t or. f Some cranial nerves include both sensory and motor components.
t or f The function of the cerebellum is limited to balance and coordination.
t or f Substantia nigra gives rise to the dopamine-containing pathway that facilitates readiness
t or f The limbic system is important for motivation and emotional behaviors.
t or f Although relatively small, the hypothalamus is very important for a large range of
Deterioration of the basal ganglia may lead to Parkinson's disease.
t or f the choroid plexus reabsorbs the cerebrospinal fluid
t or f Cerebrospinal fluid provides the major cushion for the brain.
t or f Hydrocephalus is caused by inflammation of the meninges.
t or f damage to the right hemisphere of the cortex would most likely cause loss of sensory or motor control on the left side of the body
t or f the human cerebral cortex contains up to eight distinct layers of cell bodies
t or f. Damage to the striate cortex of the right hemisphere causes blindness in the left visual
t or f The parietal lobe lies between the occipital lobe and the central sulcus.
t or f The prefrontal cortex is important for working memory.
t or f The "binding problem" refers to the question of how various brain regions produce a
single perception of a single object.
t or f Bumps and depressions in the skull are closely related to how well-developed the
underlying brain areas are.
t or f Electroencephalography records neural signals generated by the activity of populations of
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