Disruption of food hoarding by injections of procaine into mediodorsal thalamus, GABA into subpallidal region and haloperidol into accumbens.

The contributions of accumbens-subpallido-mediodorsal thalamus (MD) projections to food hoarding were investigated. The number of food pellets hoarded was reduced by bilateral injections of haloperidol into the accumbens, by bilateral injections of GABA into the subpallidal region and by bilateral injections of procaine into the mediodorsal thalamus. Food hoarding was not reduced by bilateral injections of procaine into the pedunculopontine nucleus. It appears that subpallido-mediodorsal thalamus projections are associated with hoarding behavior but not subpallido-pedunculopontine projections.