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1. www.britannica.com › science › narcoticNarcotic | Definition, Types, & Effects | Britannica

   www.britannica.com › science › narcotic

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   Narcotics are drugs that produce analgesia, narcosis, and addiction and that sometimes also produce euphoria, a feeling of great elation. The best-known narcotics are the opiates, compounds found in or derived from opium.

   • Analgesia

     Analgesia, loss of sensation of pain that results from an...

   • Oxycodone

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   • Naltrexone

     Other articles where naltrexone is discussed: alcoholism:...

   • Addiction

     The causes of addiction vary. Environmental factors, such as...

2. www.ncbi.nlm.nih.gov › books › NBK424849THE NEUROBIOLOGY OF SUBSTANCE USE, MISUSE, AND ADDICTION

   www.ncbi.nlm.nih.gov › books › NBK424849

   A chemical substance that binds to and blocks the activation of certain receptors on cells, preventing a biological response. Naloxone is an example of an opioid receptor antagonist.

3. neurolaunch.com › narcotics-definition-psychologyNarcotics in Psychology: Effects, Treatment, and Research

   neurolaunch.com › narcotics-definition-psychology

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   15 wrz 2024 · From a psychological standpoint, narcotics are substances that alter the functioning of the central nervous system, affecting mood, perception, and consciousness. Clinically speaking, narcotics are often synonymous with opioids – drugs that interact with opioid receptors in the brain to produce pain-relieving and euphoric effects.

4. nida.nih.gov › sites › defaultDrugs, Brains, and Behavior The Science of Addiction

   nida.nih.gov › sites › default

   What biological factors increase the risk of addiction? Scientists estimate that genetic factors account for between 40 and 60 percent of a person’s vulnerability to addiction; this includes the effects of environmental factors on the function and expression of a person’s genes. A person’s stage of development

5. psychiatryonline.org › doi › 10Neuroscience of Addiction: Relevance to Prevention and Treatment

   psychiatryonline.org › doi › 10

   25 kwi 2018 · Neurobiology Of Addiction Risk. The risk for addiction is related to complex interactions between biological factors (genetics, epigenetics, developmental attributes, neurocircuitry) and environmental factors (social and cultural systems, stress, trauma, exposure to alternative reinforcers).

6. www.ncbi.nlm.nih.gov › books › NBK597351Neurobiology of Addiction - StatPearls - NCBI Bookshelf

   www.ncbi.nlm.nih.gov › books › NBK597351

   2 lis 2023 · Neurobiology of Addiction. Abdo Semaan; Mashal K. Khan. Author Information and Affiliations. Last Update: November 2, 2023. Go to: Introduction. Over the past 2 decades, addiction has been at the forefront of American society, media, and politics through coverage of the opioid epidemic.

7. www.ncbi.nlm.nih.gov › pmc › articlesMolecular basis of opioid action: from structures to new leads

   www.ncbi.nlm.nih.gov › pmc › articles

   1 sty 2020 · Combined with advances in GPCR biochemistry and X-ray crystallography (20), such preparations enabled the first structural insights into all four opioid receptors (Figure 1c) (21 – 24). For the classic opioid receptors (μOR, δOR, κOR), these structures revealed a common logic for opioid recognition.