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SUMMARY:Apathy and Anhedonia in Adult and Adolescent Cannabis Users and Co
 ntrols Before and During the COVID-19 Pandemic Lockdown - Martine Skumlien
  (University of Cambridge)
DTSTART:20220223T170000Z
DTEND:20220223T180000Z
UID:TALK170591@talks.cam.ac.uk
CONTACT:Katharina Zuhlsdorff
DESCRIPTION:COVID-19 lockdown measures have caused severe disruptions to w
 ork and education and prevented people from engaging in many rewarding act
 ivities. Cannabis users may be especially vulnerable\, having been previou
 sly shown to have higher levels of apathy and anhedonia than non-users. In
  this survey study\, we measured apathy and anhedonia\, before and after l
 ockdown measures were implemented\, in n = 256 adult and n = 200 adolescen
 t cannabis users and n = 170 adult and n = 172 adolescent controls. Scores
  on the Apathy Evaluation Scale (AES) and Snaith-Hamilton Pleasure Scale (
 SHAPS) were investigated with mixed-measures ANCOVA\, with factors user gr
 oup\, age group\, and time\, controlling for depression\, anxiety\, and ot
 her drug use. Adolescent cannabis users had significantly higher SHAPS sco
 res before lockdown\, indicative of greater anhedonia\, compared with adol
 escent controls (P = .03\, η p2 = .013). Contrastingly\, adult users had 
 significantly lower scores on both the SHAPS (P < .001\, η p2 = .030) and
  AES (P < .001\, η p2 = .048) after lockdown compared with adult controls
 . Scores on both scales increased during lockdown across groups\, and this
  increase was significantly smaller for cannabis users (AES: P = .001\, η
  p2 = .014\; SHAPS: P = .01\, η p2 = .008). Exploratory analyses revealed
  that dependent cannabis users had significantly higher scores overall (AE
 S: P < .001\, η p2 = .037\; SHAPS: P < .001\, η p2 = .029) and a larger 
 increase in scores (AES: P = .04\, η p2 =.010\; SHAPS: P = .04\, η p2 = 
 .010)\, compared with non-dependent users. Our results suggest that adoles
 cents and adults have differential associations between cannabis use as we
 ll as apathy and anhedonia. Within users\, dependence may be associated wi
 th higher levels of apathy and anhedonia regardless of age and a greater i
 ncrease in levels during the COVID-19 lockdown. (https://academic.oup.com/
 ijnp/article/24/11/859/6291328?login=true)
LOCATION:Zoom
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