Effects of Cognitive Training on Chemotherapy-Induced Cognitive Impairment in Colon Cancer Patients Undergoing Treatment(Chemobrain) in Oncology Patients With Colon Cancer Undergoing Active Treatment

The Montreal Cognitive Assessment Test (MoCA test) Version 8.3" (17): This test allows the detection of mild cognitive impairment (MCI) by evaluating executive functions, attention, abstraction, memory, calculation, and orientation. The administration time is 10 minutes. The maximum score is 30 points, with scores below 26 indicating MCI.

FACT-COG (Version 3)" (24): This 37-item questionnaire is divided into six cognitive domains: memory, concentration, mental acuity, verbal fluency, functional interference, and multitasking ability. Additionally, the tool includes two other subscales: "notability" (comments from others) and "impact of perceived cognitive impairment on quality of life." Respondents indicate the frequency of each occurrence during the 7 days prior to the test on a 5-point Likert scale ranging from 0, "never," to 4, "several times a day." The individual subscale scores are summed to determine the total FACT-Cog score, which ranges from 0 to 148, with higher scores indicating better cognitive functioning.

Test for the Evaluation of Everyday Cognition (PECC)" (18): This test measures individuals' ability to solve 12 real-life situations grouped into the following areas: medication management, administrative management, financial management, meal preparation, transportation, and shopping. It helps assess functional capacity in daily life. The administration time is 35 minutes.

Hamilton Anxiety Rating Scale" (19): A clinical assessment tool used to evaluate the level of anxiety experienced by a person. It consists of 14 items, each with five response options ranging from "not present" to "very severe," with a score assigned to each response. A total score of 17 or less indicates mild anxiety; 18 to 24 indicates moderate anxiety; and 25 to 30 indicates severe anxiety.

Lawton and Brody Instrumental Activities of Daily Living Scale" (20): Designed to assess autonomy in instrumental activities in the elderly population. The administration time is 4 minutes, and each item is scored as 0 or 1, with a total score of 8.

Pittsburgh Sleep Quality Index (PSQI)" (21): Developed to measure sleep quality in individuals aged 24 to 83 years. The administration time is 5-10 minutes. Nineteen individual items generate seven "component" scores: subjective sleep quality, sleep latency, sleep duration, habitual sleep efficiency, sleep disturbances, use of sleep medication, and daytime dysfunction.

Everyday Memory Failures Questionnaire" (23): This questionnaire includes categories of forgetfulness such as "speaking, reading, and writing," "names and faces," "actions," and "learning new things." Responses are given on a Likert scale with nine response options for each question, ranging from "Never in the past 3 months" to "More than once a day." However, due to the difficulty of the nine options, other authors have used fewer response choices.