Thoughts can keep you awake!
Nelson J, Harvey AG.
Pre-sleep imagery under the microscope: a comparison of patients with insomnia and good sleepers.
Behav Res Ther. 2003 Mar;41(3):273-84.
PMID: 12600399 [PubMed - indexed for MEDLINE]
Nelson J, Harvey AG.
The differential functions of imagery and verbal thought in insomnia.
J Abnorm Psychol. 2002 Nov;111(4):665-9.
PMID: 12428780 [PubMed - indexed for MEDLINE]
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