The Relationship between Aging and Photic Driving EEG Response

Tadanori FUKAMI, Takamasa SHIMADA, Fumito ISHIKAWA, Bunnoshin ISHIKAWA, Yoichi SAITO

Summary :

The present study examined the evaluation of aging using the photic driving response, a measure used in routine EEG examinations. We examined 60 normal participants without EEG abnormalities, classified into three age groups (2029, 3059 and over 60 years; 20 participants per group). EEG was measured at rest and during photic stimulation (PS). We calculated Z-scores as a measure of enhancement and suppression due to visual stimulation at rest and during PS and tested for between-group and intraindividual differences. We examined responses in the alpha frequency and harmonic frequency ranges separately, because alpha suppression can affect harmonic frequency responses that overlap the alpha frequency band. We found a negative correlation between Z-scores for harmonics and age by fitting the data to a linear function (CC: -0.740). In contrast, Z-scores and alpha frequency were positively correlated (CC: 0.590).

• Publication: IEICE TRANSACTIONS on Information Vol.E94-D No.9 pp.1839-1842
• Publication Date: 2011/09/01
• Online ISSN: 1745-1361
• DOI: 10.1587/transinf.E94.D.1839
• Type of Manuscript: LETTER
• Category: Biological Engineering

Authors

Tadanori FUKAMI
Takamasa SHIMADA
Fumito ISHIKAWA
Bunnoshin ISHIKAWA
Yoichi SAITO

Keyword

EEG,  photic driving response,  aging,  Z-score