@prefix n9j: <http://data.loterre.fr/ark:/67375/N9J> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix isothes: <http://purl.org/iso25964/skos-thes#> .

n9j:-KVCSS4LP-6
  owl:sameAs <https://concepts.sagepub.com/social-science/concept/amotivational_syndrome> ;
  skos:definition "Clinical observations of marijuana use in the 1960s led to the development of a label for a constellation of symptoms called \"amotivational syndrome,\" which was thought to be a long-term effect of heavy marijuana use. Symptoms include apathy, decreased productivity, decreased energy levels, depression, inability to concentrate, loss of motivation, and decreased goal-directed behavior. [Source: Encyclopedia of Substance Abuse Prevention, Treatment, & Recovery; Amotivational Syndrome]"@en ;
  a skos:Concept ;
  skos:inScheme n9j: ;
  skos:broader n9j:-BXJ3NGVW-L ;
  skos:prefLabel "amotivational syndrome"@en .

n9j:-concepts
  a isothes:ConceptGroup ;
  skos:prefLabel "concepts"@en ;
  skos:member n9j:-KVCSS4LP-6 .

n9j:-BXJ3NGVW-L
  skos:prefLabel "substance abuse health-related issues"@en ;
  a skos:Concept ;
  skos:narrower n9j:-KVCSS4LP-6 .

n9j: a skos:ConceptScheme .