For this study, brain activity (EEG) will be recorded from typically-developing 9- to 11 year-old children during the performance of cognitive tasks before and after a short bout of cardiovascular exercise. This study requires 2 appointments (~2 hours each), both at UMD. Children will receive $15 for their participation.

Exercise Testing


Electroencephalography (EEG)

First, your child will be fitted for a special electrode cap, similar to a swim cap, that will be placed on his or her head. This cap is used to measure the small electrical activity generated by your child’s brain by use of an array of sensors embedded within the cap. In order to achieve a proper fit, measures of the circumference of your child’s head will be taken as shown in the pictures below.

Next, your child’s skin will also be lightly rubbed at each skin sensor on the electrode cap with the flat wooden end of a q-tip. Special care will be taken to ensure that the skin on your child’s scalp is not irritated. The purpose of this step is to gently move the hair away from the sensors so as to allow more direct contact between the skin and the electrodes.

Last, we will use a plastic syringe (no needles are involved) to apply Food & Drug Administration (FDA) approved non-toxic conducting gel into each sensor. This gel enables a continuous connection between each sensor and the skin of the scalp in the event of small displacements of the head throughout the experiment. One a good connection is obtained we will record your child's brain activity while he/she sits quietly with his/her eyes open, closed, and during the computer task.