Clinical Research Directory

Inclusion Criteria: * Those over 18 years of age, * Those in ASA I-III class, * Those who have undergone planned elective surgery under general anesthesia, * Those who have been informed about the study in advance and given their consent. Exclusion Criteria: * Those under 18 years of age, * Those who underwent emergency intervention, * Those in the ASA-Ⅳ class, * Those who underwent regional anesthesia, * Those with a history of cognitive retardation, visual-hearing impairment or psychiatric disease that prevents communication, those who have previously been diagnosed with neurocognitive disorders, * Patients who could not complete the procedure, patients with data loss, * Patients whose general anesthesia duration is less than 90 minutes will not be included in the study.