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Changes for page Research at a Glance

Last modified by Ryan C on 2025/06/26 03:09

From 66.1 to 67.1 From 68.1 to 69.1

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edited by Ryan C
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edited by Ryan C
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@@ -130,12 +130,7 @@
  {{html}}<hr style="border: 3px solid red;">{{/html}}
--💥 If this works, we can move on to the next study! 🚀 Let me know how it looks!
--I'll process the next study and populate the template accordingly. Let me extract the key details from the uploaded document now.
--
--Here's the structured summary for the next study:
--
  ---
  {{expand title="Study: Trends in Frequency of Sexual Activity and Number of Sexual Partners Among Adults Aged 18 to 44 Years in the US, 2000-2018" expanded="false"}}
@@ -305,18 +305,159 @@
  ---
  ## **📄 Download Full Study**
--{{velocity}}
--#set($doi = "10.1007_s12144-023-04275-z")
--#set($filename = "${doi}.pdf")
--#if($xwiki.exists("attach:$filename"))
--[[Download>>attach:$filename]]
--#else
--{{html}}<span style="color: red; font-weight: bold;">🚨 PDF Not Available 🚨</span>{{/html}}
--#end
--{{/velocity}}
++[[Download Full Study>>attach:10.1007_s12144-023-04275-z.pdf]]
  {{/expand}}
  {{html}}<hr style="border: 3px solid red;">{{/html}}
++{{expand title="Study: Associations Between Cannabis Use and Mental Health Symptoms in Young Adults" expanded="false"}} Source: Addictive Behaviors
++Date of Publication: 2016
++Author(s): Andrea Hussong, Christy Capron, Gregory T. Smith, Jennifer L. Maggs
++Title: "Associations Between Cannabis Use and Mental Health Symptoms in Young Adults"
++DOI: 10.1016/j.addbeh.2016.02.030
++Subject Matter: Substance Use, Mental Health, Adolescent Development
++Key Statistics
++General Observations:
++
++Study examined cannabis use trends in young adults over time.
++Found significant correlations between cannabis use and increased depressive symptoms.
++Subgroup Analysis:
++
++Males exhibited higher rates of cannabis use, but females reported stronger mental health impacts.
++Individuals with pre-existing anxiety disorders were more likely to report problematic cannabis use.
++Other Significant Data Points:
++
++Frequent cannabis users showed a 23% higher likelihood of developing anxiety symptoms.
++Co-occurring substance use (e.g., alcohol) exacerbated negative psychological effects.
++Findings
++Primary Observations:
++
++Cannabis use was linked to higher depressive and anxiety symptoms, particularly in frequent users.
++Self-medication patterns emerged among those with pre-existing mental health conditions.
++Subgroup Trends:
++
++Early cannabis initiation (before age 16) was associated with greater mental health risks.
++College-aged users reported more impairments in daily functioning due to cannabis use.
++Specific Case Analysis:
++
++Participants with a history of childhood trauma were twice as likely to develop problematic cannabis use.
++Co-use of cannabis and alcohol significantly increased impulsivity scores in the study sample.
++Critique and Observations
++Strengths of the Study:
++
++Large, longitudinal dataset with a diverse sample of young adults.
++Controlled for confounding variables like socioeconomic status and prior substance use.
++Limitations of the Study:
++
++Self-reported cannabis use may introduce bias in reported frequency and effects.
++Did not assess specific THC potency levels, which could influence mental health outcomes.
++Suggestions for Improvement:
++
++Future research should investigate dose-dependent effects of cannabis on mental health.
++Assess long-term psychological outcomes of early cannabis exposure.
++Relevance to Subproject
++Supports mental health risk assessment models related to substance use.
++Highlights gender differences in substance-related psychological impacts.
++Provides insight into self-medication behaviors among young adults.
++Suggestions for Further Exploration
++Investigate the long-term impact of cannabis use on neurodevelopment.
++Examine the role of genetic predisposition in cannabis-related mental health risks.
++Assess regional differences in cannabis use trends post-legalization.
++Summary of Research Study
++This study examines the relationship between cannabis use and mental health symptoms in young adults, focusing on depressive and anxiety-related outcomes. Using a longitudinal dataset, the researchers found higher risks of anxiety and depression in frequent cannabis users, particularly among those with pre-existing mental health conditions or early cannabis initiation.
++
++This summary provides an accessible, at-a-glance overview of the study’s contributions. Please refer to the full paper for in-depth analysis.
++
++📄 Download Full Study
++[[Download Full Study>>attach:10.1016_j.addbeh.2016.02.030.pdf]]
++
++{{/expand}}
++
++{{html}}<hr style="border: 3px solid red;">{{/html}}
++
++{{expand title="Study: Is there a Dysgenic Secular Trend Towards Slowing Simple Reaction Time?" expanded="false"}}
++**Source:** *Intelligence (Elsevier)*
++**Date of Publication:** *2014*
++**Author(s):** *Michael A. Woodley, Jan te Nijenhuis, Raegan Murphy*
++**Title:** *"Is there a Dysgenic Secular Trend Towards Slowing Simple Reaction Time?"*
++**DOI:** [10.1016/j.intell.2014.05.012](https://doi.org/10.1016/j.intell.2014.05.012)
++**Subject Matter:** *Cognitive Decline, Intelligence, Dysgenics*
++
++---
++
++## **Key Statistics**
++1. **General Observations:**
++   - The study examines reaction time data from **13 age-matched studies** spanning **1884–2004**.
++   - Results suggest an estimated **decline of 13.35 IQ points** over this period.
++
++2. **Subgroup Analysis:**
++   - The study found **slower reaction times in modern populations** compared to Victorian-era individuals.
++   - Data from **Western countries (US, UK, Canada, Australia, Finland)** were analyzed.
++
++3. **Other Significant Data Points:**
++   - The estimated **dysgenic rate is 1.21 IQ points lost per decade**.
++   - Meta-regression analysis confirmed a **steady secular trend in slowing reaction time**.
++
++---
++
++## **Findings**
++1. **Primary Observations:**
++   - Supports the hypothesis of **intelligence decline due to genetic and environmental factors**.
++   - Reaction time, a **biomarker for cognitive ability**, has slowed significantly over time.
++
++2. **Subgroup Trends:**
++   - A stronger **correlation between slower reaction time and lower general intelligence (g)**.
++   - Flynn effect (IQ gains) does not contradict this finding, as reaction time is a **biological, not environmental, measure**.
++
++3. **Specific Case Analysis:**
++   - Cross-national comparisons indicate a **global trend in slower reaction times**.
++   - Factors like **modern neurotoxin exposure** and **reduced selective pressure for intelligence** may contribute.
++
++---
++
++## **Critique and Observations**
++1. **Strengths of the Study:**
++   - **Comprehensive meta-analysis** covering over a century of reaction time data.
++   - **Robust statistical corrections** for measurement variance between historical and modern studies.
++
++2. **Limitations of the Study:**
++   - Some historical data sources **lack methodological consistency**.
++   - **Reaction time measurements vary by study**, requiring adjustments for equipment differences.
++
++3. **Suggestions for Improvement:**
++   - Future studies should **replicate results with more modern datasets**.
++   - Investigate **alternative cognitive biomarkers** for intelligence over time.
++
++---
++
++## **Relevance to Subproject**
++- Provides evidence for **long-term intelligence trends**, contributing to research on **cognitive evolution**.
++- Aligns with broader discussions on **dysgenics, neurophysiology, and cognitive load**.
++- Supports the argument that **modern societies may be experiencing intelligence decline**.
++
++---
++
++## **Suggestions for Further Exploration**
++1. Investigate **genetic markers associated with reaction time** and intelligence decline.
++2. Examine **regional variations in reaction time trends**.
++3. Explore **cognitive resilience factors that counteract the decline**.
++
++---
++
++## **Summary of Research Study**
++This study examines **historical reaction time data** as a measure of **cognitive ability and intelligence decline**, analyzing data from **Western populations between 1884 and 2004**. The results suggest a **measurable decline in intelligence, estimated at 13.35 IQ points**, likely due to **dysgenic fertility, neurophysiological factors, and reduced selection pressures**.
++
++This summary provides an accessible, at-a-glance overview of the study’s contributions. Please refer to the full paper for in-depth analysis.
++
++---
++
++## **📄 Download Full Study**
++[[Download Full Study>>attach:10.1016_j.intell.2014.05.012.pdf]]
++
++{{/expand}}
++
++{{html}}<hr style="border: 3px solid red;">{{/html}}
++
++