Neuropsych Neuroanatomy Quiz 1 Flashcards
In general limbic structures are located where in the brain?
Ventral and medial regions
Which of the following distinghuishes the limbic cortex from non-limbic cortex?
The limbic cortex is more susceptible to the herpes simplex virus.
Which limbic system structure is most essential to homeostatic function?
Hypothalamus
Which is the correct ordering from least to most complex cortical structure?
Corticoid, archicortex, neocortex
Which is part of the limbic lobe?
anterior cingulate gyrus, medial orbitofrontal gyrus, anterior insular cortex
Where can you find the amygdala?
medial temporal lobes
Which of the following is considered corticoid structure?
amygdala, basal forebrain, septal region (NOT hippocampus)
The nucleus basalis predominantly contains ___ neurons that innervate the entire cerebral cortex.
cholinergic
What limbic region releases acetylcholine to activate the hippocampus, thereby modulating memory functioning?
medial septal nucleus
The right and left amygdalae communicate with each other via the ___
anterior commissure
Neuroimaging studies have identified what structural abnormality in patients with schizophrenia?
reduced amygdala and hippocampal volume
Atrophy of what structure is thought to be responsible for impaired olfaction in Alzheimer’s disease?
Anterior olfactory nucleus
What is thought to be important in the emotional and motivational aspects of certain smells?
direct projections from the olfactory tract to the amygdala
What is thought to explain the ability of odors to evoke vivid memories?
Projections from the primary olfactory cortex to the enthorinal cortex
Which of the following is important for memory consolidation?
medial temporal region + medial diencephalic region
Which diencephalic nuclei is involved in memory consolidation?
Anterior nucleus of the thalamus, mediodorsal nucleus of the thalamus, mammillary bodies
What are the three primary components of the hippocampal formation?
hippocampus, dentate gyrus, subiculum
The hippocampal formation can be found at the ___
medial temporal lobes
What structure is the major input/output relay between the hippocampal formation and various regions of association cortex across the brain?
enthorinal cortex
Of the four major limbic system functions, the amygdala participates in ___
Homeostatic functions, olfaction, memory, emotions and drives.
What is the result of lesioning both amygdalae?
Placid, non-aggressive behavior
Seizures involving the amygdala cause what?
intense feelings of fear and panic
The ___ is important for experiencing pleasure, and lesioning it causes rage and aggressive behavior.
septal area
The amygdala attaches emotional significance to ___
sensory stimuli perceived by the association cortex + new memories
