@ARTICLE\{IMM2008-06191, author = "S. M. Arnfred and L. K. Hansen and J. Parnas and M. M{\o}rup", title = "Regularity increases middle latency evoked and late induced beta brain response following proprioceptive stimulation", year = "2008", keywords = "EEG", pages = "114 - 131", journal = "Brain Research", volume = "1218", editor = "", number = "0", publisher = "", url = "http://www.sciencedirect.com/science/article/pii/S000689930800721X", abstract = "Focal attention increases the middle-latency amplitude of somatosensory evoked potentials. Previously this effect has been suggested to be due to increased readiness in somatosensory cortex. Presently, we examine whether regularity of stimulus occurrence increases the proprioceptive evoked response as an indication of increased readiness. This is achieved through detailed analysis of both evoked and induced responses in the time-frequency domain. Electroencephalography in a 64 channels montage was recorded in fourteen healthy subjects. Two paradigms were explored: A Regular alternation between hand of presentation and a Random sequence of hand of presentation. The {ERPWAVELAB} toolbox was used for decomposition of the wavelet transformed data (7 to 47 Hz, \^{a}€“300 to +1500 ms)", isbn_issn = "0006-8993" }