Related Experiment Video
Updated: Jul 7, 2026
Transauricular Vagus Nerve Stimulation and Electroencephalographic Assessment in Disorders of Consciousness
Published on: July 11, 2025
Verification of the Mismatch Negativity (MMN) responses in normal adult subjects
Adriana Bortoleto Brossi1, Karen Cristina Borba1, Cristiane Fregonesi Dutra Garcia2
1Speech and Hearing Therapist.
Unlabelled:
Mismatch Negativity (MMN) is used to evaluate the central auditory system.
Aim:
to characterize the MMN, in normal subjects.
Materials And Methods:
prospective study, 12 subjects, six males and six females, between the ages of 18 and 24. "Mann-Whytnei" test. EXAMS: Pure Tone Audiometry (PTA), Tympanometry, Otoacoustic Emissions and Short and Long Latency Auditory Potentials (MMN).
Results:
in MMN variable amplitude, the mean value was of -2.757 microV and -3.548 microV, CZA1 and CZA2; of 1.435 microV and -1.867 microV, CZA1 and CZA2. In variable and medium latency, we found in 150.7ms and 153.2ms, CZA1 and CZA2; in 170.4ms and 184.0ms, CZA1 and CZA2 - for females and males respectively.
Conclusion:
related to latency, there was significant statistical difference between the genders in relation to CZA1 and CZA2; and it was lower for females and higher for males.
