title: biological replicate 2
organism: Rattus norvegicus
attributes.tag: strain
attributes.value: not applicable
attributes.tag: isolate
attributes.value: The yoked-saline group C1_2 received intravenous infusions of saline at the same rate and number as the heroin self-administration group. Nose-pokes by the yoked rats were recorded but had no scheduled consequences.
attributes.tag: breed
attributes.value: Rat
attributes.tag: cultivar
attributes.value: Sprague Dawley
attributes.tag: ecotype
attributes.value: Sprague Dawley
attributes.tag: age
attributes.value: 6-8 weeks
attributes.tag: dev_stage
attributes.value: 250 to 300 g
attributes.tag: sex
attributes.value: male
attributes.tag: tissue
attributes.value: Nucleus accumbens
attributes.tag: BioSampleModel
attributes.value: Model organism or animal