Aspect Medical to Present at UBS Global Life Sciences Conference September 27-30, 2004

Business Wire, Sept 15, 2004

NEWTON, Mass. -- Aspect Medical Systems, Inc. (Nasdaq: ASPM) will be presenting at the UBS Global Life Sciences Conference in New York at 12:30 p.m. EDT on Wednesday, September 29, 2004. The company's presentation will be made by Nassib Chamoun, president and CEO. The presentation will be conducted live via audio webcast and may be accessed at www.aspectmedical.com on the Investor page or at http://ccbn.com. An archived version will be available from September 29, 2004 through October 15, 2004.

About the Company

Aspect Medical Systems, Inc. (NASDAQ: ASPM) is a global market leader in brain monitoring technology. Aspect's BIS(TM) technology directly measures the effects of anesthetics and sedatives on the brain. The technology has been used to assess more than 9 million patients and has been the subject of approximately 1,500 published articles and abstracts. BIS technology is installed in approximately 32 percent of all domestic operating rooms and is available in more than 160 countries. Aspect Medical Systems has OEM agreements with seven leading manufacturers of patient monitoring systems. Aspect is also investigating how other methods of analyzing EEG may aid in the diagnosis and management of neurological diseases, including depression and Alzheimer's. Based in Newton, Mass., Aspect employs more than 200 people worldwide. For more information, visit Aspect's Web site at www.aspectmedical.com

For further information regarding Aspect Medical Systems, Inc., visit the Aspect Medical Systems, Inc. website at http://www.aspectmedical.com