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Related Concept Videos

Piaget's Stage 1 of Cognitive Development01:14

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The sensorimotor stage, the initial phase of Jean Piaget's theory of cognitive development, spans the first two years of a child's life. During this period, infants actively engage with their surroundings, building cognitive awareness through direct interaction with the world. This interaction is primarily based on sensory perception and motor actions, allowing infants to gradually understand basic physical properties and predict how objects interact within their environment.
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γ-aminobutyric acid or GABA, plays a pivotal role as an inhibitory neurotransmitter in the brain. GABA pathway potentiators, also known as GABAergic drugs, are a class of pharmaceutical agents designed to enhance the functioning of the GABAergic system. These medications primarily treat epilepsy, a neurological disorder characterized by recurrent seizures.
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Neurotransmitters are essential chemical messengers within the nervous system, facilitating the communication between neurons. These chemical messengers, varying in function and effect, are critical for sustaining various aspects of neurological health and emotional well-being.
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Rab GTPases act in a regulated cascade during membrane fusion, helping the lipid bilayers mix. The Rab family of proteins are active when bound to GTP, and inactive when bound to GDP. Hence, they act as guanine nucleotide-dependent molecular switches. Rab-GTP recognizes and binds to long or short-range tethering proteins to capture the target vesicle. These tethers coordinate with SNAREs on the vesicle and the target membrane to assemble the trans SNARE complex that locks the mixing bilayers.
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The nativist approach to infant cognitive development proposes that infants are born with inherent knowledge structures that allow them to interpret the world almost immediately. This perspective contrasts with earlier developmental theories, such as those proposed by Jean Piaget, which emphasized a more gradual acquisition of cognitive abilities through interaction with the environment. One key concept in this approach is object permanence — the understanding that objects continue to...
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Jean Piaget's theory of cognitive development emphasizes the role of thinking in a child's learning process, suggesting that children are naturally curious about their environment. His approach to development is discontinuous, proposing that cognitive abilities progress through distinct stages, each with unique characteristics. Central to Piaget's theory is schemata—mental structures that allow individuals to understand and interpret the world.
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Inhibitory Synapse Formation in a Co-culture Model Incorporating GABAergic Medium Spiny Neurons and HEK293 Cells Stably Expressing GABAA Receptors
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GABA system as the cause and effect in early development.

Irina Topchiy1, Julie Mohbat2, Oluwarotimi O Folorunso1

  • 1Division of Basic Neuroscience, McLean Hospital, Belmont, MA 02478, USA; Department of Psychiatry, Harvard Medical School, Boston, MA 02215, USA.

Neuroscience and Biobehavioral Reviews
|April 5, 2024
PubMed
Summary
This summary is machine-generated.

Gamma-aminobutyric acid (GABA) is crucial for brain development and function. Disruptions in GABA system development can cause widespread issues, while its prolonged maturation makes it vulnerable to insults.

Keywords:
Early developmentEarly life stressFetal alcohol syndromeGABAGABAA receptorsMaternal immune activation

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Area of Science:

  • Neuroscience
  • Developmental Biology
  • Neurochemistry

Background:

  • Gamma-aminobutyric acid (GABA) is the principal inhibitory neurotransmitter in the adult brain.
  • The GABA system guides early brain development, preceding glutamatergic systems.
  • GABA system maturation extends into the early postnatal period.

Purpose of the Study:

  • To review the dual role of the GABA system in brain development.
  • To organize evidence around GABA as a cause or effect in developmental disruptions.
  • To identify knowledge gaps in understanding GABA's developmental mechanisms.

Main Methods:

  • Literature review of existing evidence on GABA system development.
  • Organization of findings into two developmental scenarios.
  • Analysis of GABA's role as both a cause and effect of developmental insults.

Main Results:

  • The GABA system's early development influences other brain systems.
  • The protracted maturation of the GABA system renders it susceptible to developmental insults.
  • Evidence supports GABA's critical role in both developmental scenarios.

Conclusions:

  • The GABA system is essential for normal brain development, acting as both a foundational element and a vulnerable system.
  • Further research is needed to elucidate the precise mechanistic links between GABA system dynamics and developmental outcomes.
  • Understanding these mechanisms is critical for addressing neurodevelopmental disorders.