Linked Life Data

1733914

Source:http://linkedlifedata.com/resource/pubmed/id/1733914

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1992-3-4
pubmed:abstractText
In the auditory forebrain (field L) of the European starling (Sturnus vulgaris), single unit responses were recorded for a wide range of complex stimuli, comprising different forms of amplitude and frequency modulation. About two-third of the units locked to sinusoidal modulation regardless of whether frequency (SFM) or amplitude (SAM) was modulated. On average, however, frequency led to stronger synchronization. Both the proportion of phase locking and its mean strength showed a low-pass dependence on modulation frequency. The lower efficiency of amplitude modulation is also visible in unit responses when SAM is combined with (random) frequency modulation. For the assessment of response strength and its comparison across the tested repertoire of complex stimuli, a new index (REX) is introduced which primarily weighs similarity of the spike trains in identically repeated stimulus runs. Applied to a set of 311 field L neurons, also this approach discloses the two stimulus classes lacking frequency modulation (pure tone and SAM) as the least effective. A new measure for response latency, the Effective Response Delay (ERD), based on the spike-triggered analysis of responses to randomly frequency-modulated sounds (RFM), reflects physiological delays better than conventional latency. So, ERD correction of SAM and SFM Period Histograms allowed to disclose response effective stimulus ranges independent of modulation frequency.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0378-5955
pubmed:author
pubmed:issnType
Print
pubmed:volume
57
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
216-30
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Setting complex tasks to single units in the avian auditory forebrain. I: Processing of complex artificial stimuli.
pubmed:affiliation
Lehrstuhl für Allgemeine Zoologie und Neurobiologie, Ruhr-Universität Bochum, F.R.G.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't