Neural Development and Neuroplasticity Quiz

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Questions and Answers

What are the two processes involved in the formation of the nervous system?

  • Axon pathway formation and synaptic connections
  • Gastrulation and neurulation (correct)
  • Migration of neurons and generation of major brain regions
  • Neurogenesis and cell migration

Which cells differentiate into neurons, astrocytes, and oligodendroglia?

  • Notochord cells
  • Ectoderm cells
  • Neuroectoderm cells
  • Precursor cells (stem cells) (correct)

What is the function of the notochord in neurulation?

  • Generating layers of cells
  • Migrating neurons to final positions
  • Giving rise to the entire nervous system
  • Defining the ultimate axes of development (correct)

During which stage of neural development does proliferation of neural cells occur?

<p>Neurogenesis (B)</p> Signup and view all the answers

Which structure plays a role in motor learning and goal-directed behavior through the basal ganglia, mediated by dopamine?

<p>Cerebral hemispheres (C)</p> Signup and view all the answers

What is the major output pathway for voluntary movement?

<p>Motor cortex (B)</p> Signup and view all the answers

Which part of the brain is responsible for subconscious planning and organization of movement?

<p>Cerebellum (A)</p> Signup and view all the answers

What factors constrain movement, such as action, perception, and cognition?

<p>Task and environment (A)</p> Signup and view all the answers

What is neuroplasticity?

<p>Nervous system's ability to change or modify (A)</p> Signup and view all the answers

At what levels can neuroplasticity occur?

<p>Genetic, cellular, and whole-brain (C)</p> Signup and view all the answers

What processes are involved in recovery from brain injury?

<p>Denervation super-sensitivity, synaptic hyper-effectiveness, and regenerative synaptogenesis (A)</p> Signup and view all the answers

What involves changes in cortical maps and the development of new functions in response to sensory input and motor demands?

<p>Functional reorganization at the network or systems level (D)</p> Signup and view all the answers

In healthy adults, when can cortical maps change?

<p>In response to activity, behavior, or skill acquisition (B)</p> Signup and view all the answers

What nature of the nervous system leads to competition that determines the domination of neural borders and functional areas in the brain?

<p>Demand-driven nature (C)</p> Signup and view all the answers

What are important factors in human growth and development?

<p>Genetics and environment (A)</p> Signup and view all the answers

Which period includes significant stages of embryonic and fetal development?

<p>Prenatal period (A)</p> Signup and view all the answers

What theory emphasizes the importance of forming emotional attachments to caregivers for survival?

<p>Attachment theory (C)</p> Signup and view all the answers

What is a vital time for the development of sensorimotor, cognitive, communicative, and social-emotional behaviors?

<p>Early childhood (B)</p> Signup and view all the answers

What period is characterized by rapid change in height, weight, and the development of secondary sexual characteristics?

<p>Adolescence (B)</p> Signup and view all the answers

What factors influence attachment security?

<p>Opportunity for attachment, quality of caregiving, and infant characteristics (D)</p> Signup and view all the answers

What can lead to neurobiological changes, altered neural systems, and sensitization to stress?

<p>Trauma and adverse childhood experiences (A)</p> Signup and view all the answers

What determines motor behavior?

<p>Physical size, neurological and physiological functioning, information processing abilities, and self-organizing properties (D)</p> Signup and view all the answers

What are the distinct periods of human development?

<p>Prenatal, infancy, early childhood, later childhood, adolescence, adulthood, and older age (A)</p> Signup and view all the answers

What influences human development?

<p>Heredity, environment, and task (B)</p> Signup and view all the answers

What are the phases of attachment according to attachment theory?

<p>Pre-attachment, attachment in the making, clear-cut attachment, and the formation of a reciprocal relationship (B)</p> Signup and view all the answers

What theory emphasizes the importance of cognitive development?

<p>Cognitive theory (D)</p> Signup and view all the answers

Which process can lead to congenital conditions such as spina bifida and anencephaly?

<p>Neural induction (B)</p> Signup and view all the answers

What plays a critical role in guiding axons to appropriate targets?

<p>Growth cones (A)</p> Signup and view all the answers

What determines the establishment and modification of neural circuits?

<p>Neurotrophic influences (C)</p> Signup and view all the answers

When does myelination increase into the late teens and early twenties?

<p>Late teens and early twenties (D)</p> Signup and view all the answers

What continues to improve into the early 30s?

<p>The brain's efficiency (A)</p> Signup and view all the answers

What occurs at puberty in relation to changes in white matter and synaptic pruning?

<p>Changes in white matter and synaptic pruning (A)</p> Signup and view all the answers

What does the cerebellum compare intended output with to adjust and update movement commands?

<p>Sensory signals (C)</p> Signup and view all the answers

Which part of the brain plays a crucial role in fine-tuning and planning movements?

<p>Cerebellum (C)</p> Signup and view all the answers

What is responsible for integrating signals to determine axon pathways and synaptogenesis?

<p>Neurons (B)</p> Signup and view all the answers

What is disrupted in disruptions in neural induction, neurogenesis, and neuronal diversity?

<p>Neural cell differentiation (D)</p> Signup and view all the answers

What can lead to congenital conditions such as fetal alcohol syndrome and hydrocephalus?

<p>Disruptions in neurogenesis (B)</p> Signup and view all the answers

What underpins variations in personality, ability, and behavior?

<p>Modifications in neural circuits (A)</p> Signup and view all the answers

What principle states that failure to use neural networks can lead to degradation of functions and learned non-use, requiring environments to be set up for increased engagement and stimulation?

<p>Use it to improve it principle (B)</p> Signup and view all the answers

Which factor is critical for inducing plasticity according to the text?

<p>Repetition (A)</p> Signup and view all the answers

What does neuroplasticity involve?

<p>Use of redundant and uncrossed pathways to swap functions (D)</p> Signup and view all the answers

Which perspective is important for understanding human development?

<p>Developmental system perspective (B)</p> Signup and view all the answers

What is the role of neurogenesis in human adults according to the text?

<p>It is unknown for reparative processes in other brain regions (D)</p> Signup and view all the answers

What principle emphasizes that the nature of training dictates the nature of plasticity?

<p>Specificity principle (B)</p> Signup and view all the answers

What is emphasized as critical for inducing plasticity and acquiring new skills?

<p>Age (B)</p> Signup and view all the answers

What concept involves changes in quantity and body size, impacting developmental motor control?

<p>Growth (A)</p> Signup and view all the answers

What is important for understanding human development according to the text?

<p>Developmental system perspectives (A)</p> Signup and view all the answers

What can impact short and long-term health outcomes, and be transferred across generations?

<p>Epigenetics (A)</p> Signup and view all the answers

What plays a critical role in guiding axons to appropriate targets?

<p>Neuroplasticity (A)</p> Signup and view all the answers

What is emphasized as critical for inducing plasticity and acquiring new skills?

<p>Age (A)</p> Signup and view all the answers

What principle emphasizes the importance of training or usage in maintaining networks and connections, driving alternate processes and protecting plasticity?

<p>Use it to improve it principle (C)</p> Signup and view all the answers

What plays a critical role in guiding axons to appropriate targets?

<p>Growth factors (A)</p> Signup and view all the answers

What can impact short and long-term health outcomes, and be transferred across generations?

<p>Epigenetics (A)</p> Signup and view all the answers

What is emphasized as critical for inducing plasticity and acquiring new skills?

<p>Repetition, intensity, timing, and salience (D)</p> Signup and view all the answers

What involves changing relations between the developing person and multi-level environmental contexts?

<p>Human development (C)</p> Signup and view all the answers

What principle emphasizes that the nature of training dictates the nature of plasticity?

<p>Specificity principle (B)</p> Signup and view all the answers

What determines the establishment and modification of neural circuits?

<p>Neuroplasticity (B)</p> Signup and view all the answers

Which factor is critical for inducing plasticity and acquiring new skills according to the text?

<p>Repetition (B)</p> Signup and view all the answers

At what levels can neuroplasticity occur?

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

During which stage of neural development does proliferation of neural cells occur?

<p>Embryonic stage (D)</p> Signup and view all the answers

What continues to improve into the early 30s?

<p>Myelination (B)</p> Signup and view all the answers

What is responsible for integrating signals to determine axon pathways and synaptogenesis?

<p>Neurotrophic factors (A)</p> Signup and view all the answers

Flashcards

Cell Differentiation (Neural)

Process where cells become specialized based on region and gene expression, involving axon, dendrite, and synapse growth.

Neural Development Disruptions

Congenital conditions due to disruptions in neural induction, neurogenesis, and neuronal diversity.

Growth Cone

A structure essential for guiding axons to their targets through signaling.

Neurotrophic Influences

Influences that determine the formation and modification of neural networks.

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Neural Circuit Modification

Changes in neural circuits from experience, influencing personality and behavior.

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Critical Periods

Periods where activity has heightened influence on neural circuits.

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Myelination

Process that increases into the early twenties, affecting behavior.

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Cerebellum Role in Motor Control

Fine-tunes and plans movements, comparing intended and actual outputs.

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Neuroplasticity

The brain's ability to reorganize itself by forming new neural connections throughout life.

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Adult Neurogenesis

The generation of new neurons in the adult brain.

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"Use it or Lose it" Principle

The principle that neural connections degrade if not used.

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"Use it to Improve it" Principle

Training or usage maintains neural networks and connections.

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Long-Term Potentiation (LTP)

Strengthening of synaptic connections through cooperation, association, and specificity.

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Specificity Principle (Neuroplasticity)

The principle that the type of training dictates the type of plasticity.

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Factors Influencing Plasticity

Key factors for inducing plasticity, including repetition, intensity, timing, and relevance.

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Variables in Skill Acquisition

Factors such as age, transference, and interference affect how we learn new skills.

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Human Development Context

The developing person interacting with multiple environmental levels.

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Developmental System Perspectives

Perspectives considering development as lifelong and systemic.

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Epigenetics

Impacts on gene expression affecting health outcomes across generations.

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Growth Impact on Motor Control

Changes in size and body proportions influencing motor control.

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Redundant Pathways (Neuroplasticity)

Compensatory brain activity using alternate pathways when others are damaged.

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Hippocampus for Neurogenesis

Brain area showing neurogenesis in adults, linked to memory and spatial navigation.

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Early Intervention

Early action to maximize plasticity and development.

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Transfer (Neuroplasticity)

The application of learned skills to new situations or tasks.

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Interference (Neuroplasticity)

When one skill hinders the learning or performance of another.

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Behavioral Stereotypes

Behavioral changes that seem typical during certain age ranges or phases of development.

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Uncrossed Pathways

Pathways in the brain that do not cross over to the opposite side of the body.

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Brain Efficiency Improvement

Process by which the brain becomes more efficient, often continuing into the early 30s.

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Functional Reassignment

Brain's ability to transfer functions from a damaged area to another undamaged area.

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Synaptic Plasticity changes

Changes in synaptic efficacy due to neural activity

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Study Notes

Neural Development and Modification of Neural Circuits

  • Full cell differentiation occurs relative to region and gene expression, along with extensive growth of axons, dendrites, and synapses
  • Disruptions in neural induction, neurogenesis, and neuronal diversity can lead to congenital conditions such as spina bifida, anencephaly, fetal alcohol syndrome, and hydrocephalus
  • The construction of neural circuits involves a network of systems, with neurons integrating signals to determine axon pathways and synaptogenesis
  • Growth cones play a critical role in guiding axons to appropriate targets via signaling mechanisms
  • Neurotrophic influences determine the establishment and modification of neural circuits
  • Modifications in neural circuits occur as a result of experience and underpin variations in personality, ability, and behavior
  • Critical periods exist for activity-mediated influence, with neurotransmitter activity and receptor sensitivity playing crucial roles
  • Myelination increases into the late teens and early twenties, partly explaining behavioral stereotypes
  • The brain's efficiency continues to improve into the early 30s, with changes in white matter and synaptic pruning occurring at puberty
  • There is a linear increase in white matter and a non-linear decrease in gray matter from adolescence to early adulthood
  • Motor control involves segmental, brainstem, and cerebellar levels, with the cerebellum playing a crucial role in fine-tuning and planning movements
  • The cerebellum compares intended output with sensory signals to adjust and update movement commands, essential for coordinated movement

Neuroplasticity and Human Development

  • Neuroplasticity involves the use of redundant and uncrossed pathways in the brain to swap functions and activate secondary areas.
  • Human adults may experience neurogenesis in the olfactory bulbs and hippocampus, but its usefulness for reparative processes in other brain regions is unknown.
  • "Use it or lose it" principle: failure to use neural networks can lead to degradation of functions and learned non-use, requiring environments to be set up for increased engagement and stimulation.
  • "Use it to improve it" principle: training or usage can maintain networks and connections, driving alternate processes and protecting plasticity.
  • Synaptic connections strengthen via long term potentiation with cooperativity, associativity, and specificity conditions.
  • Specificity principle: the nature of training dictates the nature of plasticity, and mere use is not enough.
  • Repetition, intensity, timing, and salience all matter in inducing plasticity, and early intervention is critical.
  • Age, transference, and interference all play roles in inducing plasticity and acquiring new skills.
  • Human development involves changing relations between the developing person and multi-level environmental contexts.
  • Developmental system perspectives and the lifespan perspective are important for understanding human development.
  • Epigenetics can impact short and long-term health outcomes, and changes in gene expression can be transferred across generations.
  • Growth involves changes in quantity and body size, with body proportions varying with age and impacting developmental motor control.

Neuroplasticity and Human Development

  • Neuroplasticity involves the use of redundant and uncrossed pathways in the brain to swap functions and activate secondary areas.
  • Human adults may experience neurogenesis in the olfactory bulbs and hippocampus, but its usefulness for reparative processes in other brain regions is unknown.
  • "Use it or lose it" principle: failure to use neural networks can lead to degradation of functions and learned non-use, requiring environments to be set up for increased engagement and stimulation.
  • "Use it to improve it" principle: training or usage can maintain networks and connections, driving alternate processes and protecting plasticity.
  • Synaptic connections strengthen via long term potentiation with cooperativity, associativity, and specificity conditions.
  • Specificity principle: the nature of training dictates the nature of plasticity, and mere use is not enough.
  • Repetition, intensity, timing, and salience all matter in inducing plasticity, and early intervention is critical.
  • Age, transference, and interference all play roles in inducing plasticity and acquiring new skills.
  • Human development involves changing relations between the developing person and multi-level environmental contexts.
  • Developmental system perspectives and the lifespan perspective are important for understanding human development.
  • Epigenetics can impact short and long-term health outcomes, and changes in gene expression can be transferred across generations.
  • Growth involves changes in quantity and body size, with body proportions varying with age and impacting developmental motor control.

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