Study objectives: This study aimed to examine psychometric properties of the Disturbing Dream and Nightmare Severity Index (DDNSI) in individuals aged between 18 and 39. Methods: All participants (n = 674) were asked to complete the DDNSI, including the modified Nightmare Effects Survey. Additionally, 109 participants were tested for test-retest reliability after 3 months. Among our sample, 229...
Objectives: The current study aimed to explore the difference of dream themes, emotional intensity, and sleep parameters between nightmares and bad dreams in nightmare sufferers.Methods: Twenty-four nightmare sufferers who endorsed clinical levels of nightmares (Disturbing Dream and Nightmare Severity Index Scores ≥10) recorded daily information about their dream themes using a modified version...
Previous studies have supported the significant association between nightmares and suicidal ideation, but the underlying mechanisms are largely unknown. The purpose of the present study was to investigate perceived burdensomeness and thwarted belongingness as mediators in the relationship between nightmare distress and suicidal ideation. This sample consisted of 301 undergraduate students who...