Human Development: Stress and Brain Development
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Questions and Answers

What process in brain development occurs around the 25th day of gestational life?

  • Formation of neural tube bulges (correct)
  • Neurulation
  • Development of skin around the neural tube
  • C-shaped embryonic self formation
  • What is the significance of the neural tube in brain development?

  • Growth of the brain stem
  • Development of the central nervous system (correct)
  • Creation of the cerebellum
  • Formation of the spinal cord
  • At what stage of gestational life does the neural tube begin to take on a pronounced curved shape?

  • 30th day
  • 25th day (correct)
  • 20th day
  • 15th day
  • What occurs during the process of neurulation?

    <p>Cells from the embryo's upper surface form a sheet that rearranges itself</p> Signup and view all the answers

    What is the eventual fate of the sheet of cells that covers the neural tube?

    <p>It becomes the skin</p> Signup and view all the answers

    What is the significance of the three distinct bulges that appear at the top of the embryonic self?

    <p>They will develop into the hindbrain, midbrain, and forebrain</p> Signup and view all the answers

    At what stage of development does the embryo's central nervous system begin to form?

    <p>During the process of neurulation</p> Signup and view all the answers

    What is the term for the process by which the neural tube forms and develops into the central nervous system?

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

    Which of the following is a finding regarding the impact of early diet on academic achievement?

    <p>The negative effects of poor nutrition are lessened by other more benign influences.</p> Signup and view all the answers

    What is the key factor that can reduce the impact of poor nutrition on cognitive development?

    <p>Parent's level of education</p> Signup and view all the answers

    What is the term for the combination of risk factors that can have a negative impact on development?

    <p>Cumulative risk</p> Signup and view all the answers

    What is the benefit of intervening to reduce one risk factor, such as malnutrition?

    <p>It can also reduce the impact of other negative influences on development.</p> Signup and view all the answers

    What is the primary focus of the chapter in terms of development?

    <p>Prenatal and postnatal brain development</p> Signup and view all the answers

    What is the term for the process by which genetic information is expressed?

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

    What is the term for the study of the structure and function of the brain?

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

    What is the purpose of understanding the workings of the central nervous system for helping professionals?

    <p>To better understand how clients think, feel, and learn</p> Signup and view all the answers

    What is a common characteristic of Down Syndrome?

    <p>Trisomy of chromosome 21</p> Signup and view all the answers

    Which of the following is a hallmark feature associated with Cri Du Chat Syndrome?

    <p>Deletion of part of chromosome 5</p> Signup and view all the answers

    Which type of genetic inheritance is most relevant when discussing conditions such as Down Syndrome?

    <p>Non-disjunction during meiosis</p> Signup and view all the answers

    In what way can chromosomal variations affect intellectual disability?

    <p>They can disrupt normal neurodevelopment</p> Signup and view all the answers

    Which chromosome number is typically associated with Trisomy 18, a condition linked to severe intellectual disability?

    <p>47</p> Signup and view all the answers

    What type of genetic inheritance pattern is seen in many cases of Fragile X Syndrome?

    <p>X-linked dominant inheritance</p> Signup and view all the answers

    Which of the following best describes the term 'allostatic overload' in the context of cognitive development?

    <p>Cumulative stress leading to health risks</p> Signup and view all the answers

    In terms of genetics, which condition is characterized by a deletion on the short arm of chromosome 5?

    <p>Cri Du Chat Syndrome</p> Signup and view all the answers

    Trisomy 18 is always associated with mild intellectual disability.

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

    Down Syndrome is caused by a deletion on the short arm of chromosome 5.

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

    Fragile X Syndrome is inherited in an autosomal dominant pattern.

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

    Allostatic overload is a term used to describe the genetic causes of intellectual disability.

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

    Chromosomal variations can never affect intellectual disability.

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

    Cri Du Chat Syndrome is characterized by an extra copy of chromosome 21.

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

    Down Syndrome is caused by a deletion on chromosome 21.

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

    Intellectual disability is always caused by genetic inheritance.

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

    Down Syndrome is typically caused by a deletion on the short arm of chromosome 5.

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

    Cri Du Chat Syndrome is characterized by a duplication on the short arm of chromosome 5.

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

    Fragile X Syndrome is an example of autosomal dominant inheritance.

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

    Trisomy 18 is typically associated with chromosome 21.

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

    Chromosomal variations can only affect physical development, not intellectual disability.

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

    Genetic inheritance plays no role in the development of intellectual disability.

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

    Allostatic overload is a concept that is only relevant to physical development, not cognitive development.

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

    Intellectual disability is always caused by a single genetic mutation.

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

    Down Syndrome is caused by a deletion on the short arm of chromosome 5.

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

    Cri Du Chat Syndrome results from a deletion of part of chromosome 5.

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

    Trisomy 18, a condition connected to severe intellectual disability, is typically associated with an extra chromosome 18.

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

    Fragile X Syndrome is an example of autosomal dominant inheritance.

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

    Chromosomal variations can significantly affect the cognitive development of individuals.

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

    Most cases of Down Syndrome are inherited from one affected parent.

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

    Cri Du Chat Syndrome leads to a characteristic cat-like cry due to developmental issues.

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

    Individuals with Fragile X Syndrome typically show normal intellectual development.

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

    Study Notes

    Early Prenatal Brain Development

    • At 2 weeks, cells from the embryo's upper surface form a sheet that rearranges itself by turning inward and curling into a neural tube, signaling the beginning of central nervous system development.
    • The neural tube is covered by another sheet of cells, which eventually becomes the skin, and is moved inside the embryo.
    • Around the 25th day, the neural tube takes on a pronounced curved shape, with three distinct bulges appearing at the top, which eventually become the hindbrain, midbrain, and forebrain.

    Brain Development Stages

    • Figure 2.6 shows the stages of brain development, from 25 days to 9 months, with distinct changes in shape and structure.
    • Within the primitive neural tube, important events occur that impact future development.

    Nutrition and Brain Development

    • Poor prenatal and postnatal environments lacking essential nutrients can affect brain development and academic achievement.
    • Adequate diets can improve behavioral functioning, especially among children who were performing worst academically.
    • The impact of poor nutrition can be lessened by other more benign influences, such as well-educated parents.

    The Role of the Brain in Development

    • The brain plays a central role in mediating stress-induced adaptations and correlations between allostatic overload and epigenetic alterations.
    • Understanding the brain's workings is essential for helping professionals to understand how their clients think, feel, and learn.

    Case Study: Leo and George

    • Identical twins Leo and George were born with physical similarities but began to diverge in physical and psychological characteristics as they grew.
    • Despite their similarities, they developed distinct differences in appearance, interests, and academic choices.

    Early Prenatal Brain Development

    • At 2 weeks, cells from the embryo's upper surface form a sheet that rearranges itself by turning inward and curling into a neural tube, signaling the beginning of central nervous system development.
    • The neural tube is covered by another sheet of cells, which eventually becomes the skin, and is moved inside the embryo.
    • Around the 25th day, the neural tube takes on a pronounced curved shape, with three distinct bulges appearing at the top, which eventually become the hindbrain, midbrain, and forebrain.

    Brain Development Stages

    • Figure 2.6 shows the stages of brain development, from 25 days to 9 months, with distinct changes in shape and structure.
    • Within the primitive neural tube, important events occur that impact future development.

    Nutrition and Brain Development

    • Poor prenatal and postnatal environments lacking essential nutrients can affect brain development and academic achievement.
    • Adequate diets can improve behavioral functioning, especially among children who were performing worst academically.
    • The impact of poor nutrition can be lessened by other more benign influences, such as well-educated parents.

    The Role of the Brain in Development

    • The brain plays a central role in mediating stress-induced adaptations and correlations between allostatic overload and epigenetic alterations.
    • Understanding the brain's workings is essential for helping professionals to understand how their clients think, feel, and learn.

    Case Study: Leo and George

    • Identical twins Leo and George were born with physical similarities but began to diverge in physical and psychological characteristics as they grew.
    • Despite their similarities, they developed distinct differences in appearance, interests, and academic choices.

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    Description

    This quiz covers the stress and adaptation system in the brain, individual differences in response to stress, and early prenatal brain development.

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