Psychology 1101 Chapter 3 Flashcards
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Questions and Answers

Psychological researchers study genetics in order to better understand the ________ that contributes to certain behaviors.

biology

A difference in ________ can explain why one person dies from a disease and another person survives.

genetics

Human eggs and sperm each contain 23 ________, which are composed of long strands of ________.

  • Chromosomes; RNA
  • Genes; RNA
  • Genes; DNA
  • Chromosomes; DNA (correct)
  • Changes in behavior and cognitive processes over time are studied by?

    <p>evolutionary psychologists</p> Signup and view all the answers

    What does polygenic mean?

    <p>most traits are controlled by more than one gene</p> Signup and view all the answers

    The two major divisions of the nervous system are the ________ and ________ nervous systems.

    <p>central; peripheral</p> Signup and view all the answers

    What is the central nervous system composed of?

    <p>the brain and the spinal cord</p> Signup and view all the answers

    What is the function of the pons?

    <p>connects the brain and the spinal cord</p> Signup and view all the answers

    What does a computerized tomography (CT) scan involve?

    <p>taking a number of x-rays of a particular section of a person's body or brain</p> Signup and view all the answers

    What does positron emission tomography (PET) refer to?

    Signup and view all the answers

    What is electroencephalography (EEG)?

    <p>Researchers place electrodes at various locations on a person's head in order to record brainwaves</p> Signup and view all the answers

    The endocrine system consists of a series of glands that produce chemical substances known as ________.

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

    What does the theory of evolution by natural selection state?

    <p>organisms that are better suited for their environment will survive and reproduce, while those that are poorly suited will die off</p> Signup and view all the answers

    What is genotype?

    <p>genetic makeup of an individual</p> Signup and view all the answers

    What is phenotype?

    <p>individual's inheritable physical characteristics</p> Signup and view all the answers

    Study Notes

    Genetics and Behavior

    • Psychological research explores genetics to understand biological influences on behavior.
    • Genetic differences can determine individual outcomes in disease susceptibility and survival.

    Chromosomes and DNA

    • Human reproductive cells (eggs and sperm) contain 23 chromosomes, made up of DNA strands.

    Evolutionary Psychology

    • Evolutionary psychologists investigate changes in behavior and cognitive processes across time.

    Polygenic Traits

    • Most physical and behavioral traits are influenced by multiple genes, known as polygenic inheritance.

    Nervous System Structure

    • The nervous system has two main divisions: the central and peripheral nervous systems.
    • The central nervous system is composed of the brain and spinal cord.
    • The pons, located in the brainstem, acts as a connector between the brain and spinal cord.

    Brain Imaging Techniques

    • Computerized Tomography (CT) scans use multiple X-rays to visualize sections of the body or brain.
    • Electroencephalography (EEG) involves placing electrodes on the scalp to record brainwave activity.

    Endocrine System

    • The endocrine system includes glands that secrete hormones, which are chemical substances that regulate various bodily functions.

    Natural Selection

    • The theory of evolution by natural selection posits that organisms adapted to their environments have higher survival and reproductive rates.

    Genetic Terminology

    • Genotype refers to the genetic makeup of an individual, encompassing all inherited genes.
    • Phenotype represents the observable physical characteristics influenced by the genotype and environment.

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    Description

    This quiz contains flashcards focused on Chapter 3 of Psychology 1101. It covers key terms and concepts related to genetics and behavior within psychological research. Test your knowledge on essential vocabulary and definitions to enhance your understanding of the topic.

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