Basic Psychology: Nervous System & Brain
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Questions and Answers

What characterizes the all-or-none rule in neurons?

  • Neurons can vary the strength of their action potential.
  • Neurons only partially respond to stimuli based on intensity.
  • All neurons fire at different rates depending on their type.
  • A neuron will fire completely or not at all. (correct)
  • Which of the following describes the function of excitatory neurons?

  • They inhibit action potentials in target cells.
  • They create long-lasting changes in neural connections.
  • They facilitate the transmission of signals between neurons. (correct)
  • They serve an exclusively structural role in the nervous system.
  • How does the sympathetic nervous system primarily affect the body?

  • It lowers heart rate and reduces blood pressure.
  • It enhances digestion and energy conservation.
  • It promotes relaxation and recovery.
  • It triggers the fight or flight response. (correct)
  • What is meant by neural plasticity?

    <p>The capacity of neurons to form new connections based on experience.</p> Signup and view all the answers

    What does transduction refer to in the context of sensory processing?

    <p>The conversion of external stimuli into neural signals.</p> Signup and view all the answers

    Study Notes

    Basic Psychology, Nervous System & Brain

    • Action potential: A rapid change in electrical potential across a membrane.
    • All-or-none rule: Describes how neurons fire, either fully or not at all.
    • APA Reference style: A specific formatting style for scholarly writing (likely referring to citations).
    • Central/peripheral nervous system: The central nervous system (CNS) is the brain and spinal cord; the peripheral nervous system (PNS) is the rest of the nervous system.
    • Consciousness: A state of awareness.
    • Endocrine system: The system of glands that release hormones.
    • Ethical principles: Guidelines for responsible research practices.
    • Excitatory/inhibitory neurons: Types of neurons that either stimulate or suppress activity in other neurons.
    • Functions of neurons: The different roles played by neurons in the nervous system.
    • Introspection: A method where participants report their own subjective experiences.
    • Mind-body question: Involves the relationship between mental states and physical processes.
    • Neural (brain) plasticity: The brain's ability to change and adapt.
    • Qualitative/quantitative: Qualitative describes qualities; Quantitative describes quantities.
    • Quasi-experimental methods (3): Research designs that are not as controlled as true experiments.
    • Refractory period: A time after an action potential when a neuron cannot fire again.
    • Sympathetic/parasympathetic: Two branches of the autonomic nervous system with opposing effects on the body.
    • Synapse: The junction between two neurons where communication happens.
    • Transduction: The conversion of one form of energy into another (e.g., light to neural signals).

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    Description

    Test your knowledge on the nervous system and brain with this quiz covering key concepts such as action potentials, the structure of the central and peripheral nervous systems, and ethical research principles in psychology. Explore the functions of neurons and the nature of consciousness as you prepare for your psychology studies.

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