Cerebral Functional Imaging Intro
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Cerebral Functional Imaging Intro

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@ReadableJudgment8027

Questions and Answers

What is one of the main objectives of neuroscience?

  • To create a new field of study combining psychology and biology
  • To develop a new model of emotional intelligence
  • To decline the different stages of emotional and cognitive functions (correct)
  • To study the history of neuroscience
  • Who is credited with the discovery of the existence of the neuronal genesis of synapses in 1894?

  • Bliss
  • Hebb
  • Ramon Y Cajal (correct)
  • Kandel
  • What is the term for the memory that is inherited from our species and influences our instinctual behavior?

  • Phylétique memory (correct)
  • Individual memory
  • Epigenetic memory
  • Instinctual memory
  • What is the main function of phylétique memory in humans?

    <p>To serve survival, reproduction, and interpretation of sensory stimuli</p> Signup and view all the answers

    What is the term for the process by which synaptic connections can increase their efficiency of transmission?

    <p>Hebbian learning</p> Signup and view all the answers

    In which organism did Kandel study to confirm Hebb's hypothesis?

    <p>Aplysia</p> Signup and view all the answers

    What is the purpose of functional cerebral imaging?

    <p>To observe brain activity during cognitive processes</p> Signup and view all the answers

    What was the discovery that led to the development of functional localization?

    <p>Phrenology by J.Gall</p> Signup and view all the answers

    What is the effect of stress on the hippocampus?

    <p>Decrease in the number of granular cells</p> Signup and view all the answers

    Who is credited with dividing the brain into 52 areas?

    <p>Brodmann</p> Signup and view all the answers

    What is the role of the prefrontal cortex in memory retrieval?

    <p>More involved in semantic encoding than episodic encoding</p> Signup and view all the answers

    What was the first neuroimaging technique developed?

    <p>EEG</p> Signup and view all the answers

    What is the consequence of prolonged stress on neurons?

    <p>Neuronal death</p> Signup and view all the answers

    Why is it important to localize brain function?

    <p>To associate cognitive models with brain activity measurements</p> Signup and view all the answers

    What is the name of the model that describes the neural basis of memory?

    <p>HERA model</p> Signup and view all the answers

    What type of information is processed in the hippocampus?

    <p>Both semantic and episodic information</p> Signup and view all the answers

    When did the development of IRMf take place?

    <p>1990</p> Signup and view all the answers

    What is the purpose of using radioactive tracers in medical imaging?

    <p>To track glucose consumption by cells</p> Signup and view all the answers

    What is the advantage of using functional magnetic resonance imaging (fMRI) over positron emission tomography (PET)?

    <p>fMRI is less expensive</p> Signup and view all the answers

    What is the principle behind functional magnetic resonance imaging (fMRI)?

    <p>Detection of changes in magnetic properties of hydrogen protons</p> Signup and view all the answers

    What is the main application of functional magnetic resonance imaging (fMRI) in research?

    <p>Study of sleep patterns</p> Signup and view all the answers

    What is the advantage of near-infrared spectroscopy (NIRS) over functional magnetic resonance imaging (fMRI)?

    <p>NIRS is more portable and easier to use</p> Signup and view all the answers

    What is the principle behind near-infrared spectroscopy (NIRS)?

    <p>Detection of changes in infrared light absorption</p> Signup and view all the answers

    What is the application of positron emission tomography (PET) in clinical practice?

    <p>Diagnosis of Alzheimer's disease</p> Signup and view all the answers

    What is the limitation of positron emission tomography (PET)?

    <p>All of the above</p> Signup and view all the answers

    What is the advantage of magnetic resonance imaging (MRI) over computed tomography (CT) scans?

    <p>MRI does not use ionizing radiation</p> Signup and view all the answers

    What is the type of data obtained from functional magnetic resonance imaging (fMRI)?

    <p>Functional data</p> Signup and view all the answers

    What happens to brain activity in older adults, according to Cabeza's model?

    <p>Less activity in the prefrontal cortex, but more bilateral frontal activity</p> Signup and view all the answers

    What type of memory do Alzheimer's patients have difficulty accessing?

    <p>Episodic memory</p> Signup and view all the answers

    What is the role of the hippocampus, according to Squire's model?

    <p>Involved in the formation of new memories</p> Signup and view all the answers

    What is the benefit of multisensory integration, according to Stein and Meredith's study?

    <p>A 100% increase in neural activity</p> Signup and view all the answers

    Where does multisensory integration occur, according to Stein and Meredith's study?

    <p>In the superior colliculus</p> Signup and view all the answers

    What type of neurons are involved in multisensory integration, according to Stein and Meredith's study?

    <p>Multimodal neurons</p> Signup and view all the answers

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