Abstract：
:Songbirds are the preeminent animal model for understanding how the brain encodes and produces learned vocalizations. Here, we report a new statistical method, the Kullback-Leibler (K-L) distance, for analyzing vocal change over time. First, we use a computerized recording system to capture all song syllables produced by birds each day. Sound Analysis Pro software [Tchernichovski O, Nottebohm F, Ho CE, Pesaran B, Mitra PP. A procedure for an automated measurement of song similarity. Anim Behav 2000;59:1167-76] is then used to measure the duration of each syllable as well as four spectral features: pitch, entropy, frequency modulation, and pitch goodness. Next, two-dimensional scatter plots of each day of singing are created where syllable duration is on the x-axis and each of the spectral features is represented separately on the y-axis. Each point in the scatter plots represents one syllable and we regard these plots as random samples from a probability distribution. We then apply the standard information-theoretic quantity K-L distance to measure dissimilarity in phonology across days of singing. A variant of this procedure can also be used to analyze differences in syllable syntax.
journal_name
J Neurosci Methodsjournal_title
Journal of neuroscience methodsauthors
Wu W,Thompson JA,Bertram R,Johnson Fdoi
10.1016/j.jneumeth.2008.06.033subject
Has Abstractpub_date
2008-09-15 00:00:00pages
147-54issue
1eissn
0165-0270issn
1872-678Xpii
S0165-0270(08)00390-7journal_volume
174pub_type
杂志文章abstract：BACKGROUND:The presence of spikes and sharp waves in recordings of epileptic patients contaminates background signal synchronization. When estimating functional connectivity between extended cortical areas, the influence of epileptic spikes in specific areas should be considered; however, this step is sometimes overloo...
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journal_title：Journal of neuroscience methods
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journal_title：Journal of neuroscience methods
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journal_title：Journal of neuroscience methods
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更新日期：2015-03-30 00:00:00
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doi：10.1016/j.jneumeth.2008.03.019
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