Assessing Symptom and Mood Dynamics in Pain Using the Smartphone Application SOMA

INCLUSION CRITERIA \[General study\] * Chronic pain group: * Age above 18 * Access to a personal smartphone and a stable internet connection * Average pain intensity score of greater than 3 in the past week or * Average pain interference score of greater than 3 in the past week or * Average pain distress score of greater than 3 in the past week * Pain duration: greater than 6 months * Acute pain group: * Age above 18 * Access to a personal smartphone and a stable internet connection * Average pain intensity score of greater than 3 in the past week ○ or * Average pain interference score of greater than 3 in the past week ○ or * Average pain distress score of greater than 3 in the past week * Pain duration: less than 3 months * Pain cause: Due to recent surgery, injury, acute illness, or childbirth (within the past 3 months) * Healthy control group: * Age above 18 * Access to a personal smartphone and a stable internet connection * Average pain intensity score of less than 3 in the past week * Average pain interference score of less than 3 in the past week * Average pain distress score of less than 3 in the past week * No surgery, injury, acute illness, or childbirth (within the past 3 months) * In person EEG testing \[Sub-Study only\]: * Same as in General App Study Above and additionally: * Current diagnosis of Fibromyalgia, Chronic Low Back Pain or Failed Back Surgery Syndrome OR * No current or prior history of chronic pain * If participant has chronic low back pain or failed back surgery syndrome: are they planning to have either a radio-frequency ablation, back surgery, or spinal cord stimulation implant in the next few months * If participant has chronic low back pain or failed back surgery syndrome: have they received insurance approval for the procedure? * Ok with EEC/ECG measures EXCLUSION CRITERIA \[General study\] * Chronic pain group: * recent injury or surgery unrelated to the pain in the past 3 months * difficulty participating for technical/logistical issues (e.g., no computer, incompatible smartphone, can't commit to 4 months study participation); * Not fluent in English (difficulty understanding questions) * Current primary or metastatic cancer (organic cause of pain) * Acute pain group: * History of Chronic Pain (Pain lasting for more than 6 months) * difficulty participating for technical/logistical issues (e.g., no computer, incompatible smartphone, can't commit to 4 months study participation); * Not fluent in English (difficulty understanding questions) * Current primary or metastatic cancer (organic cause of pain) * Healthy control group: History of Chronic Pain (Pain lasting for more than 6 months) * difficulty participating for technical/logistical issues (e.g., no computer, incompatible smartphone, can't commit to 4 months study participation); * Not fluent in English (difficulty understanding questions) -In person EEG testing \[Sub-study only\]: \[will interfere with EEG data collection safety or quality\]: * Same as in General App Study Above and additionally: * Baldness * Pregnancy * Dreadlocks * Left-handedness * Use of a wheelchair * Heart failure diagnosis * Current or prior experience with acute psychosis or mania * implanted pacemaker, neurostimulator or any other head or heart implants * require a hearing aid to hear properly * claustrophobia * metal fragments in the body