940 Index
Rapid eye movement (REM) sleep behavior 
disorder, 361, 407–410
associated features supporting diagnosis of, 408
comorbidity with, 410
development and course of, 408–409
diagnostic criteria for, 407–408
diagnostic features of, 408
diagnostic markers for, 409
differential diagnosis of, 409–410
functional consequences of, 409
prevalence of, 408
relationship to International Classification of 
Sleep Disorders, 410
risk and prognostic factors for, 409
Reactive attachment disorder, 265–268
associated features supporting diagnosis of, 266
comorbidity with, 268
culture-related diagnostic issues in, 267
development and course of, 266
diagnostic criteria for, 265–266
diagnostic features of, 266
differential diagnosis of, 267–268
functional consequences of, 267
prevalence of, 266
risk and prognostic factors for, 267
Recurrent brief depression, 183
Relational problems, 22, 715–717
other problems relate d to primary support 
group, 716–717
problems related to family upbringing, 715–716
REM sleep behavior disorder. See Rapid eye 
movement sleep behavior disorder
Restless legs syndrome (RLS), 361, 410–413
associated features supporting diagnosis of, 
411
comorbidity with, 413
development and course of, 411–412
diagnostic criteria for, 410
diagnostic features of, 411
diagnostic markers for, 412
differential diagnosis of, 413
functional consequences of, 412–413
gender-related diagnostic issues in, 412
prevalence of, 411
relationship to International Classification of