Biopsychology Chapter 5 Final
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Questions and Answers

Which technique measures changes in blood volume using sound waves?

  • Scalp electroencephalography
  • Ultrasound-based techniques (correct)
  • Intracellular unit recording
  • Transcranial magnetic stimulation
  • What does TMS stand for?

  • Tonic muscle stimulation
  • Transcranial magnetic stimulation (correct)
  • Transcranial electrical stimulation
  • Transcranial direct current stimulation
  • Which technique measures brain activity using scalp electrodes?

  • Intracellular unit recording
  • Magnetoencephalography
  • Scalp electroencephalography (correct)
  • Transcranial magnetic stimulation
  • Which type of potential is measured by scalp electroencephalography (EEG)?

    <p>P300 wave</p> Signup and view all the answers

    What does EMG stand for?

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

    Which technique measures eye movements?

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

    What does SCL stand for in the context of measuring autonomic nervous system activity?

    <p>Skin conductance level</p> Signup and view all the answers

    What does EKG measure?

    <p>Heart rate</p> Signup and view all the answers

    What is the purpose of stereotaxic surgery?

    <p>To accurately place lesions or electrodes</p> Signup and view all the answers

    Which method of recording electrical activity of the nervous system is invasive?

    <p>Intracellular unit recording</p> Signup and view all the answers

    Which method of research involves injecting radio-opaque material into a structure of interest?

    <p>Structural methods</p> Signup and view all the answers

    Which technique allows for the viewing of interconnectivity in the brain?

    <p>Diffusion tensor imaging (DTI)</p> Signup and view all the answers

    What does PET stand for in the context of brain imaging?

    <p>Positron emission tomography</p> Signup and view all the answers

    Which technique measures waves emitted by hydrogen atoms?

    <p>Magnetic resonance imaging (MRI)</p> Signup and view all the answers

    Which method of research involves the rapid diffusion of water molecules?

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

    Which technique is more advantageous than PET for brain imaging?

    <p>Magnetic resonance imaging (MRI)</p> Signup and view all the answers

    What are the signals called in functional magnetic resonance imaging (fMRI)?

    <p>BOLD Signals</p> Signup and view all the answers

    Which technique is too slow to catch some neural activity?

    <p>Diffusion tensor imaging (DTI)</p> Signup and view all the answers

    Which technique provides a three-dimensional image of the major tracts of the brain?

    <p>Diffusion tensor imaging (DTI)</p> Signup and view all the answers

    What is the purpose of injecting 2-deoxyglucose in PET scans?

    <p>To highlight brain activity</p> Signup and view all the answers

    Which technique is used to locate specific neuroproteins in brain slices?

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

    What is the purpose of in situ hybridization?

    <p>To locate peptides and proteins in the brain</p> Signup and view all the answers

    Which technique involves inserting genetic information from a different species into mice?

    <p>Gene Knockin Techniques</p> Signup and view all the answers

    What is the purpose of the CRISPR/Cas9 method?

    <p>To edit genes using Cas9 protein and guide-RNA</p> Signup and view all the answers

    What is the function of the green fluorescent protein in the brain?

    <p>To insert into target cells and fluoresce in different colors</p> Signup and view all the answers

    What is the purpose of optogenetics?

    <p>To use light to hyperpolarize or depolarize cells</p> Signup and view all the answers

    Which type of test is used to assess intelligence?

    <p>Standard battery of neuropsychological tests</p> Signup and view all the answers

    Which type of test is used to assess memory?

    <p>Tests of Specific Neuropsychological Function</p> Signup and view all the answers

    Which type of test is used to assess language and language lateralization?

    <p>Tests of Specific Neuropsychological Function</p> Signup and view all the answers

    What is the purpose of the default mode network in the brain?

    <p>To record brain activity when the mind wanders</p> Signup and view all the answers

    Study Notes

    Techniques for Measuring Brain and Body Activity

    • Change in blood volume using sound waves: This technique is known as Doppler ultrasound.
    • TMS: Stands for Transcranial Magnetic Stimulation, a non-invasive method to stimulate neurons in the brain.
    • Scalp electrodes for brain activity: Use Electroencephalography (EEG) to measure electrical activity of the brain through electrodes placed on the scalp.
    • Type of potential measured by EEG: Measures event-related potentials (ERPs), which reflect brain responses to specific stimuli.
    • EMG: Stands for Electromyography, which records electrical activity in muscles.
    • Technique for measuring eye movements: Known as eye tracking, allows for the study of visual attention and ocular behavior.
    • SCL: Stands for Skin Conductance Level, which measures changes in sweat gland activity indicating autonomic response.
    • EKG: Measures Electrocardiogram, recording the electrical activity of the heart.

    Surgical and Imaging Techniques

    • Purpose of stereotaxic surgery: Allows for precise targeting of brain regions for research or treatment purposes.
    • Invasive method for electrical activity recording: Intracranial electrodes are used, inserted directly into the brain tissue.
    • Research method with radio-opaque material: Contrast imaging involves using contrast agents to visualize specific structures in brain imaging.
    • Technique for interconnectivity in the brain: Diffusion Tensor Imaging (DTI) reveals the connections between different brain regions.
    • PET: Stands for Positron Emission Tomography, an imaging technique that shows metabolic processes in the brain.
    • Hydrogen atom wave measurement: Nuclear Magnetic Resonance (NMR) is utilized in imaging techniques, particularly fMRI.
    • Rapid diffusion of water molecules method: Diffusion imaging helps analyze the movement of water in biological tissues.
    • Advantageous imaging technique over PET: Functional MRI (fMRI) offers better temporal resolution of brain activity.
    • Functional MRI signals: Known as BOLD (Blood-Oxygen-Level Dependency) signals, reflecting changes in blood flow related to neural activity.
    • Slow technique for neural activity: Although sophisticated, PET can be too slow for capturing real-time neural dynamics.
    • Three-dimensional brain tract imaging technique: DTI provides detailed maps of brain tracts, showing connectivity within the brain.
    • Purpose of injecting 2-deoxyglucose in PET scans: It helps visualize metabolic activity in brain regions, aiding in the assessment of brain function.

    Molecular and Genetic Techniques

    • Locating specific neuroproteins in brain slices: Immunohistochemistry is used to identify and visualize proteins in tissue sections.
    • Purpose of in situ hybridization: This technique detects specific RNA sequences, allowing for visualization of gene expression in tissue.
    • Genetic information insertion into mice method: Transgenic mouse technology is employed to study gene functions and disorders.
    • Purpose of CRISPR/Cas9 method: This gene-editing technology allows for targeted modifications in DNA, facilitating genetic research and therapy.
    • Function of green fluorescent protein in the brain: GFP serves as a marker for gene expression and tracking cellular processes.
    • Purpose of optogenetics: Enables precise control of neuronal activity using light, offering insights into neural circuits and behavior.

    Psychological Assessments and Brain Functions

    • Test for assessing intelligence: IQ tests measure cognitive abilities and intelligence levels.
    • Test for assessing memory: Memory assessments evaluate recall and recognition capacity.
    • Test for language and lateralization: Language assessments investigate language comprehension and production abilities.
    • Purpose of the default mode network: Facilitates internal thought processes such as daydreaming, self-referential thought, and retrieval of past experiences.

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    Description

    Test your knowledge of research methods in biopsychology with this quiz! Explore categories of methods, including observational vs manipulative techniques. Dive into the world of structural and functional methods, such as X-ray based techniques and computed tomography. Challenge yourself and enhance your understanding of biopsychology research methods!

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