Breathhold Duration And Response To Marijuana Smoke - PubMed

Clipboard, Search History, and several other advanced features are temporarily unavailable. Skip to main page content

The .gov means it’s official. Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

The site is secure. The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation Search: Search Advanced Clipboard Save Email Send to

• Clipboard
• My Bibliography
• Collections
• Citation manager

Display options Display options Format Abstract PubMed PMID

Save citation to file

Format: Summary (text) PubMed PMID Abstract (text) CSV Create file Cancel

Email citation

Email address has not been verified. Go to My NCBI account settings to confirm your email and then refresh this page. To: Subject: Body: Format: Summary Summary (text) Abstract Abstract (text) MeSH and other data Send email Cancel

Add to Collections

• Create a new collection
• Add to an existing collection

Name your collection: Name must be less than 100 characters Choose a collection: Unable to load your collection due to an error Please try again Add Cancel

Add to My Bibliography

• My Bibliography

Unable to load your delegates due to an error Please try again Add Cancel

Your saved search

Name of saved search: Search terms: Test search terms Would you like email updates of new search results? Saved Search Alert Radio Buttons

• Yes
• No

Email: (change) Frequency: Monthly Weekly Daily Which day? The first Sunday The first Monday The first Tuesday The first Wednesday The first Thursday The first Friday The first Saturday The first day The first weekday Which day? Sunday Monday Tuesday Wednesday Thursday Friday Saturday Report format: Summary Summary (text) Abstract Abstract (text) PubMed Send at most: 1 item 5 items 10 items 20 items 50 items 100 items 200 items Send even when there aren't any new results Optional text in email: Save Cancel

Create a file for external citation management software

Create file Cancel

Your RSS Feed

Name of RSS Feed: Number of items displayed: 5 10 15 20 50 100 Create RSS Cancel RSS Link Copy

Full text links

Elsevier Science Full text links

Actions

CiteCollectionsAdd to Collections

• Create a new collection
• Add to an existing collection

Name your collection: Name must be less than 100 characters Choose a collection: Unable to load your collection due to an errorPlease try again Add Cancel PermalinkPermalinkCopyDisplay options Display options Format AbstractPubMedPMID

Page navigation

• Title & authors
• Abstract
• Publication types
• MeSH terms
• Substances
• Grants and funding
• LinkOut - more resources

Title & authors Abstract Publication types MeSH terms Substances Grants and funding LinkOut - more resources Full text links CiteDisplay options Display options Format AbstractPubMedPMID

Abstract

Marijuana smokers are frequently observed to hold the smoke in their lungs for prolonged periods (10-15 sec) apparently in the belief that prolonged breathholding intensifies the effects of the drug. The actual influence of breathhold duration on response to marijuana smoke has not been studied. The present study examined the effects of systematic manipulation of breathhold duration on the physiological, cognitive and subjective response to marijuana smoke in a group of eight regular marijuana smokers. Subjects were exposed to each of three breathhold duration conditions (0, 10 and 20 sec) on three occasions, scheduled according to a randomized block design. A controlled smoking procedure was used in which the number of puffs, puff volume and postpuff inhalation volume were held constant. Expired air carbon monoxide levels were measured before and after smoking to monitor smoke intake. Typical marijuana effects (increased heart rate, increased ratings of "high" and impaired memory performance) were observed under each of the breathhold conditions, but there was little evidence that response to marijuana was a function of breathhold duration.

PubMed Disclaimer

Publication types

• Clinical Trial Actions
  • Search in PubMed
  • Search in MeSH
  • Add to Search
• Randomized Controlled Trial Actions
  • Search in PubMed
  • Search in MeSH
  • Add to Search
• Research Support, U.S. Gov't, P.H.S. Actions
  • Search in PubMed
  • Search in MeSH
  • Add to Search

MeSH terms

• Adolescent Actions
  • Search in PubMed
  • Search in MeSH
  • Add to Search
• Adult Actions
  • Search in PubMed
  • Search in MeSH
  • Add to Search
• Carbon Monoxide / analysis Actions
  • Search in PubMed
  • Search in MeSH
  • Add to Search
• Dronabinol / pharmacology Actions
  • Search in PubMed
  • Search in MeSH
  • Add to Search
• Emotions / drug effects Actions
  • Search in PubMed
  • Search in MeSH
  • Add to Search
• Female Actions
  • Search in PubMed
  • Search in MeSH
  • Add to Search
• Heart Rate / drug effects Actions
  • Search in PubMed
  • Search in MeSH
  • Add to Search
• Humans Actions
  • Search in PubMed
  • Search in MeSH
  • Add to Search
• Male Actions
  • Search in PubMed
  • Search in MeSH
  • Add to Search
• Marijuana Smoking / physiopathology* Actions
  • Search in PubMed
  • Search in MeSH
  • Add to Search
• Memory / drug effects Actions
  • Search in PubMed
  • Search in MeSH
  • Add to Search
• Respiration* Actions
  • Search in PubMed
  • Search in MeSH
  • Add to Search
• Time Factors Actions
  • Search in PubMed
  • Search in MeSH
  • Add to Search

Substances

• Dronabinol Actions
  • Search in PubMed
  • Search in MeSH
  • Add to Search
• Carbon Monoxide Actions
  • Search in PubMed
  • Search in MeSH
  • Add to Search

Grants and funding

• DA-03517/DA/NIDA NIH HHS/United States

LinkOut - more resources

• Full Text Sources

  • Elsevier Science

• Medical

  • MedlinePlus Health Information

Full text links [x] Elsevier Science [x] Cite Copy Download .nbib .nbib Format: AMA APA MLA NLM Send To

• Clipboard
• Email
• Save
• My Bibliography
• Collections
• Citation Manager

[x]

NCBI Literature Resources

MeSH PMC Bookshelf Disclaimer

The PubMed wordmark and PubMed logo are registered trademarks of the U.S. Department of Health and Human Services (HHS). Unauthorized use of these marks is strictly prohibited.