EEG Power Spectra

The goal of this clinical trial is to learn if an extended emergence from anesthesia can improve recovery room (Post-Anesthesia Care Unit or PACU) outcomes in lower-leg or foot surgery with nerve blocks. The primary questions it aims to answer are: * Does a longer wake-up help participants think more clearly soon after surgery compared with usual approaches? * Does it lower pain scores, lower the amount of pain medications used, and shorten the time it takes to go home from recovery room? Researchers will compare 2 groups of adults who are having similar lower-extremity orthopaedic surgeries with regional and propofol anesthesia.

The goal of this observational study is to determine the relationship between brain activity patterns and recovery time in adult patients (ages 35-50, ASA I-II) undergoing elective general anesthesia. The main question it aims to answer is: \- Does a lower magnitude of intraoperative alpha wave power correlate with a longer time for patients to emerge from general anesthesia? Participants will: * Undergo a standardized general anesthesia (GA) protocol for elective surgery. * Have their EEG activity recorded using a standard clinical BIS™ anesthetic depth monitor during the procedure. * Have their time to awakening precisely measured after the cessation of anesthetic gases.