title: Theta groups, affectivity and changes of attention.
mesh_terms: D000328:Adult; D000342:Affective Symptoms / Q000503:physiopathology*; D001288:Attention; D001921:Brain / Q000503:physiopathology*; D002648:Child; D004569:Electroencephalography; D004594:Electrophysiology; D006801:Humans