Abstract:
:Cannabis is the most popular illicit drug used by adolescents. Yet, there are only a few studies that have examined the effects of cannabis use on learning and memory during this sensitive and important neurodevelopmental stage. Male adolescent Sprague-Dawley rats were treated with Δ(9)-tetrahydrocannabinol (THC, 6 mg/kg) daily for 27 days and concurrently trained in a spatial learning and memory task. The chronic effects of cannabis use were specifically examined by assessing animal behaviour during the 'postacute' period (17 h after drug exposure), when minimal acute drug burden is expected to be present. The postacute period is a good model for cannabis use patterns in human adolescents. In addition, we investigated whether the hierarchical organization of working memory (chunking) was impaired by THC-treatment. We show that THC exposure impairs adolescent learning when tested in the postacute period, and that THC impairs the ability of animals to use a chunking strategy.
journal_name
Behav Pharmacoljournal_title
Behavioural pharmacologyauthors
Steel RW,Miller JH,Sim DA,Day DJdoi
10.1097/FBP.0b013e32834dbbb1subject
Has Abstractpub_date
2011-12-01 00:00:00pages
837-46issue
8eissn
0955-8810issn
1473-5849pii
00008877-201112000-00013journal_volume
22pub_type
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