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Related Concept Videos

Neuroplasticity01:01

Neuroplasticity

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Neuroplasticity reflects the brain's remarkable capacity to adapt and evolve, responding dynamically to learning, experiences, or injury by reorganizing its neural circuitry. This reorganization involves creating new neural connections and refining old ones through a series of biological processes that contribute to the brain's lifelong development and adaptability.
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CNS Stimulants: Psychedelic Agents01:22

CNS Stimulants: Psychedelic Agents

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Hallucinogens, also known as psychedelic drugs, are a class of substances known for their ability to alter perception, cognition, and emotions. Despite their profound effects on the mind, these drugs are non-addictive, setting them apart from many other abused substances. The mechanism of action of these drugs lies in their impact on the 5-HT2A receptor in the brain. Upon activation, this receptor couples to Gq-type G proteins, triggering a cascade that releases intracellular calcium. This...
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Hallucinogens and Psychedelics01:27

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Hallucinogens are psychoactive substances that profoundly alter perceptual experiences, generating unreal visual and sensory images. Often referred to as psychedelic drugs — a term derived from the Greek words "psyche" (mind) and "delos" (revealing) — these substances include marijuana and lysergic acid diethylamide (LSD), among others. These drugs vary in intensity and effects.
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Plasticity00:58

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Plasticity is the property where an object loses its elasticity and undergoes irreversible deformation, even after the deformation forces are eliminated. If a material deforms irreversibly without increasing stress or load, then this is called ideal plasticity. For example, when a force is applied to an aluminum rod, it changes its shape, but it does not return to its original shape once the force is removed. Plastic deformation or ductility is thus a permanent deformation or change in the...
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Altered States of Awareness01:06

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Altered states of consciousness represent significant deviations from one's normal mental state. These deviations can range from subtle changes in awareness to profound transformations in perception, thought processes, and sensory experiences. Altered states of consciousness can be triggered by various factors, including drug use, meditation, hypnosis, illness, or even intense fatigue.
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Long-term Potentiation01:25

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Long-term potentiation, or LTP, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTP is the process of synaptic strengthening that occurs over time between pre and postsynaptic neuronal connections. The synaptic strengthening of LTP works in opposition to the synaptic weakening of long-term depression (LTD) and together are the main mechanisms that underlie learning and memory.
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Whole-cell Patch-clamp Recordings in Brain Slices
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Psychedelics and neural plasticity.

Rachael Sumner1, Kacper Lukasiewicz2

  • 1University of Auckland, Auckland, New Zealand.

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Psychedelics impact neural plasticity, with diverse neuroscience fields investigating these effects. Research highlights current techniques, gaps, and future directions for translating findings from animal models to human studies.

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Area of Science:

  • Neuroscience
  • Psychopharmacology
  • Neuroplasticity research

Background:

  • Investigating the complex interplay between psychedelics and neural plasticity.
  • Synthesizing insights from diverse neuroscientific disciplines.
  • Examining the known effects of psychedelics on brain plasticity.

Discussion:

  • Evaluating the strengths and limitations of various neuroscientific techniques used in psychedelic research.
  • Identifying major gaps in current understanding of psychedelic-induced neuroplasticity.
  • Highlighting the need for methodological advancements.

Key Insights:

  • Psychedelics demonstrably influence neural plasticity mechanisms.
  • Multidisciplinary approaches are crucial for a comprehensive understanding.
  • Current research methodologies have distinct advantages and disadvantages.

Outlook:

  • Focusing on the translation of pre-clinical findings to human subjects.
  • Addressing the challenges in bridging the gap between animal models and clinical applications.
  • Guiding future research directions for effective therapeutic development.