COGSCI 115: Lecture 8-10 Questions And Solutions
gene - Answer-functional unit of chromosome that directs synthesis of one or more proteins
/.methyl groups and epigenetics - Answer-dictates whether or not a gene will be expressed; binds differently to different types of cells; yes or no to ge...
COGSCI 115: Lecture 8-10 Questions
And Solutions
gene - Answer-functional unit of chromosome that directs synthesis of one or more
proteins
/.methyl groups and epigenetics - Answer-dictates whether or not a gene will be
expressed; binds differently to different types of cells; yes or no to gene expression
/.histones and epigenetics - Answer-control how tightly or loosely DNA is wound (loose
= genes express more); how strong the gene presents
/.Cortisol levels in hair samples is correlated with: - Answer-exposure to psychosocial
stress in childhood; risk of future heart attack
/.attunement - Answer-moments when child knows that his emotions are met with
empathy; they are accepted and reciprocated
/.What are the different attachment styles? - Answer-secure, avoidant, ambivalent,
disorganized
/.Ambivalent infants tend to display activation or the left or right frontal? - Answer-Right
(lower threshold for expression of negative affect)
/.Avoidant infants tend to display activation of left or right frontal? - Answer-Left
(disposition to suppress negative emotions)
/.What are the two types of neuroplasticity? - Answer-structural and functional
/.structural neuroplasticity - Answer-brain's ability to change neuronal connections;
alterations in size of brain regions or changes to gray matter; can be asses with MRI or
CT
/.functional neuroplasticity - Answer-brain's ability to alter and adapt the functional
properties of neurons; strengthening or weakening of synapses through long term
potentiation associated with learning and memory; reflected in increasing or decreasing
levels of activity in specific brain circuits
/.long term potentiation - Answer-long term increase in the excitability of a neuron
caused by high-frequency activity of a synaptic input; involves binding of glutamate to
NMDA receptor
/.neuroanatomy/neuroplasticity of London taxi drivers - Answer-volume of posterior
hippocampus is positively correlated with the amount of time spent as a taxi driver
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