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Related Concept Videos

Case Studies01:22

Case Studies

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There are many research methods available to psychologists in their efforts to understand, describe, and explain behavior and the cognitive and biological processes that underlie it.
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Observational studies are a type of analytical study where researchers observe events without any interventions. In other words, the researcher does not influence the response variable or the experiment's outcome.
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Sometimes we want to see how people change over time, as in studies of human development and lifespan. When we test the same group of individuals repeatedly over an extended period of time, we are conducting longitudinal research. Longitudinal research is a research design in which data-gathering is administered repeatedly over an extended period of time. For example, we may survey a group of individuals about their dietary habits at age 20, retest them a decade later at age 30, and then again...
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Substance use disorders involve a pattern of using drugs more extensively than intended and continuing use despite harmful consequences. This includes legal substances like alcohol and nicotine, as well as illegal drugs. These disorders often involve both physical and psychological dependence, reflecting compulsive use of substances that significantly alter thoughts, feelings, and behaviors, contributing to a major public health issue.
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An Overview of Psychoactive Drugs01:28

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Psychoactive drugs impact brain function, influencing perception, mood, consciousness, cognition, and behavior. These substances are grouped based on their effects and the mechanisms by which they act.
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CNS stimulants, such as cocaine, amphetamines, and cannabinoids, have varying structures and mechanisms of action that lead to different therapeutic effects and side effects. Cocaine, with its molecular formula C17H21NO4, is a tropane alkaloid and a tertiary amino compound. It has two chemical forms: the hydrochloride salt and the "freebase." The former is in powder form, while the latter involves removing the hydrochloride salt to create a form that can be smoked. Cocaine exerts its...
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Related Experiment Video

Updated: Jul 20, 2025

Brain Morphology of Cannabis Users With or Without Psychosis: A Pilot MRI Study
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Adult Cannabis Use: An Exploratory Case Study.

Sonya L Lachance, Donna M Zucker, Jeffrey M Hutchins

    Journal of Gerontological Nursing
    |July 31, 2023
    PubMed
    Summary

    Cannabis use is increasing in older adults with chronic conditions. Despite side effects, many find it an effective treatment, offering a sense of autonomy compared to prescriptions.

    Area of Science:

    • Gerontology
    • Public Health
    • Pharmacology

    Background:

    • Rising cannabis use among adults and older adults with chronic health conditions in the U.S.
    • Limited understanding of influencing factors within the healthcare community.

    Purpose of the Study:

    • To explore perceptions and experiences of adults and older adults with chronic conditions who regularly use cannabis.
    • To identify biological, psychological, and social reasons for cannabis use.

    Main Methods:

    • Qualitative case study approach using semi-structured interviews.
    • Interviews guided by the Biopsychosocial Model.

    Main Results:

    • Biological, psychological, and social motivations for cannabis use were identified.

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  • Participants reported cannabis as effective for chronic issues, despite adverse events.
  • Users expressed greater comfort with cannabis than prescription medications, valuing the autonomy it provided.

    • Conclusions:

    • Cannabis use is a growing trend among older adults with chronic conditions.
    • Healthcare providers should screen older adults for appropriate and inappropriate cannabis use patterns.
    • Understanding patient-reported benefits and autonomy is crucial for healthcare providers.