Transcranial Magnetic Stimulation (TMS) uses targeted magnetic pulses to stimulate specific areas of the brain. Because brain structures and responses can vary from person to person, identifying the appropriate treatment area is an important part of developing a TMS therapy protocol.
Cortical mapping helps clinicians locate the area of the brain that should receive stimulation and establish treatment settings based on the individual’s needs. This preparation supports a more personalized approach rather than using identical stimulation settings for every patient.
Cortical mapping is a process used to identify specific areas of the brain and determine an appropriate location for TMS stimulation. During TMS treatment, a magnetic coil is positioned against the scalp and delivers controlled magnetic pulses to a targeted region.
Before treatment begins, the clinician uses anatomical landmarks and stimulation responses to help identify the appropriate treatment position. This information can then be used to establish the location and intensity of stimulation for the patient’s treatment protocol.
The process is part of the initial preparation for TMS and helps ensure that treatment is delivered consistently during subsequent sessions.
TMS is designed to stimulate specific regions associated with the condition being treated. Accurate positioning of the treatment coil is therefore important for delivering stimulation to the intended area.
Cortical mapping also contributes to treatment personalization. Rather than assuming that the same settings are appropriate for everyone, clinicians can use information gathered during the mapping process to establish an individualized protocol.
This is particularly relevant because people can differ in anatomy, treatment response, and sensitivity to stimulation. Careful preparation allows the provider to account for these differences when developing a treatment plan.
During the initial TMS setup, the patient typically sits comfortably while the treatment coil is positioned near the head. The clinician identifies the appropriate stimulation area and determines settings for the treatment protocol.
One important part of TMS planning is determining the stimulation intensity that will be used. The provider can gradually establish an appropriate level based on the patient’s response.
Once the treatment location and settings have been established, they can guide subsequent sessions. The patient remains awake throughout the process and does not need anesthesia.
Every TMS treatment plan should reflect the patient’s clinical needs. The condition being treated, symptoms, medical history, and response to stimulation can all influence treatment planning.
Cortical mapping provides a foundation for targeting stimulation consistently. Throughout the treatment course, the clinical team can also monitor the patient’s response and make adjustments when appropriate.
TMS is generally delivered through a series of sessions rather than a single treatment. A typical course may involve appointments five days per week for approximately four to six weeks, depending on the individual’s treatment plan.
Once mapping is complete, the patient can begin the planned TMS sessions. During treatment, the coil is positioned over the identified target, and controlled magnetic pulses are delivered according to the established protocol.
A typical session lasts around 20 minutes. Patients remain awake and alert, and many can return to their normal activities afterward.
At Scottsdale TMS & Spravato, cortical mapping is incorporated into the treatment process to help establish an individualized TMS protocol. Our Team monitors patients throughout treatment and evaluates their response as sessions progress.
If you are considering TMS, it is reasonable to ask your provider how the treatment target will be selected and how stimulation settings will be determined.
You can also ask how your response will be monitored, whether the protocol can be adjusted during treatment, and how your progress will be evaluated.
Dr. Michael Vines and the clinical team at Scottsdale TMS & Spravato use a personalized approach to TMS treatment, beginning with an evaluation and mapping process before the first treatment session.
Cortical mapping plays an important role in preparing for TMS by helping clinicians identify an appropriate treatment area and establish individualized stimulation settings. Accurate targeting allows treatment to be delivered consistently across the course of therapy.
Because each patient’s clinical circumstances and response can differ, TMS should be planned and monitored individually. Cortical mapping is one part of that personalized process, working alongside comprehensive evaluation and ongoing treatment monitoring. Scottsdale TMS & Spravato provides structured TMS care designed around individual needs, with treatment protocols adjusted when clinically appropriate.
Dr. Vines has practiced psychiatry in Arizona for for over 25 years and has experience working with diverse populations that include children, adolescents, adults, geriatrics, SMI patients, and the chemically dependent.
August 7, 2026
