ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    CODING OF AUDITORY SPACE (2003)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Neuroscience 26 (2003), S. 31-55 
    Details
    ISSN: 0147-006X
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Biology , Medicine
    Notes: Abstract Behavioral, anatomical, and physiological approaches can be integrated in the study of sound localization in barn owls. Space representation in owls provides a useful example for discussion of place and ensemble coding. Selectivity for space is broad and ambiguous in low-order neurons. Parallel pathways for binaural cues and for different frequency bands converge on high-order space-specific neurons, which encode space more precisely. An ensemble of broadly tuned place-coding neurons may converge on a single high-order neuron to create an improved labeled line. Thus, the two coding schemes are not alternate methods. Owls can localize sounds by using either the isomorphic map of auditory space in the midbrain or forebrain neural networks in which space is not mapped.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.neuro.26.041002.131123
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Effect of monocular deprivation on binocular neurones in the owl's visual Wulst (1976)
    [s.l.] : Nature Publishing Group
    Nature 264 (1976), S. 753-754 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Data were obtained from 8 barn owls (Tyto alba) which had been hand-raised indoors. Six had relatively normal early visual experience in the laboratory and provided control data for this study in addition to detailed data presented elsewhere1. The ages of the 6 normal owls ranged from 1 to 7 years. ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/264753a0
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Time Resolution by Single Auditory Neurones in Birds (1969)
    [s.l.] : Nature Publishing Group
    Nature 222 (1969), S. 566-567 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The avian basilar membrane is short and covered with a voluminous membrane, the tegumeritum vasculosum which is homologous to the thin membrane of Reissner in mammals. Schwartzkopff5 suggested that the damping of the basilar membrane by the tegumentum vasculosum might account for the bird's ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/222566a0
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Decrystallization of adult birdsong by perturbation of auditory feedback (1999)
    [s.l.] : Macmillan Magazines Ltd.
    Nature 399 (1999), S. 466-470 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Young birds learn to sing by using auditory feedback to compare their own vocalizations to a memorized or innate song pattern; ifthey are deafened as juveniles, they will not develop normal songs,. The completion of song development is called crystallization. After this stage, song shows little ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/20933
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Neuronal growth, atrophy and death in a sexually dimorphic song nucleus in the zebra finch brain (1985)
    [s.l.] : Nature Publishing Group
    Nature 315 (1985), S. 145-147 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Zebra finches breed well in captivity and provide chicks of known ages all year round. Neurone counts were made on sections stained with cresyl violet and the neuronal connections from HVc (ventral nucleus of hyperstriatum caudal division) to RA were traced by conventional autoradiographical ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/315145a0
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Mechanisms of sound localization in the barn owl (Tyto alba) (1979)
    Springer
    Journal of comparative physiology 133 (1979), S. 13-21 
    Details
    ISSN: 1432-1351
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary 1. We investigated the mechanisms by which the barn owl (Tyto alba) determines the azimuth and elevation of a sound source. Our measure of localizing ability was the accuracy with which the owl oriented its head to a sound source. 2. When localizing tonal signals, the owl committed the smallest errors at frequencies between 4 and 8 kHz. The azimuthal component of these errors was frequency independent from 1 to 8 kHz, but the elevational component increased dramatically for frequencies below 4 kHz. 3. The owl's mean error when localizing wide band noise was nearly three times less than its mean error when localizing the optimal frequency for tonal localization (6 kHz). 4. Occluding the right ear caused the owl to orient below and to the left of the sound source; occluding the left ear caused it to orient above and to the right of the sound source. 5. With ruff feathers (facial ruff) removed, the owl continued to localize sounds accurately in azimuth, but failed to localize sounds in elevation. 6. We conclude from these results that the barn owl uses interaural comparisons of sound spectrum to determine the elevation of a sound source. Both interaural onset time and interaural spectrum are used to identify the azimuth of the sound source. If onset time is not available (as in a continuous sound), the owl can derive the azimuth of the source from interaural spectrum alone, but its spatial resolution is poorer.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00663106
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    The owl's interaural pathway is not involved in sound localization (1981)
    Springer
    Journal of comparative physiology 144 (1981), S. 299-304 
    Details
    ISSN: 1432-1351
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary 1. Sound transmission through the barn owl's (Tyto alba) interaural pathway was measured by comparing the thresholds of single auditory neurons of the cochlear nucleus in response to independent stimulation of the ipsilateral and the contralateral ears. 2. The interaural pathway acted as an acoustical low-pass filter. It attenuated sound by an average of 13 dB at 3.5 kHz, and by an average of 63 dB at 7.0 kHz under the experimental conditions used, as determined from single-unit thresholds. 3. Sound pressure measurements in the middle ears confirmed the low-pass filter characteristics of the interaural pathway. 4. Sound attenuation in the interaural pathway is too large to enable/the two ears to function as coupled pressure-difference receivers at the sound pressure levels and for the frequency range (6–8 kHz) important for sound localization by the owl.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00612561
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Absolute frequency discrimination in the barn owl (1974)
    Springer
    Journal of comparative physiology 93 (1974), S. 347-360 
    Details
    ISSN: 1432-1351
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Barn owls (Tyto alba) could discriminate sound frequency by memory. Frequency differences as small as 0.7–0.5% were easily detected. The same acuity was obtained when two frequencies had to be remembered simultaneously and distinguished from other frequencies. The response latency was proportional to the difference between the reference and test frequencies and served as a sensitive criterion for discrimination.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00606802
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Discrimination of noise spectra by memory in the barn owl (1975)
    Springer
    Journal of comparative physiology 97 (1975), S. 55-58 
    Details
    ISSN: 1432-1351
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Barn owls can learn to remember complex noise spectra and distinguish them from slightly different spectral patterns.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00635648
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    Comparative neurophysiological studies of hearing and vocalizations in songbirds (1970)
    Springer
    Journal of comparative physiology 66 (1970), S. 257-272 
    Details
    ISSN: 1432-1351
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary 1. Acoustic neurons in the avian cochlear nucleus are tonotopically arranged according to the sites of innervation on the basilar membrane by the connecting primary auditory fibers. 2. The thresholds of single units vary distinctly with their characteristic frequencies The distribution of unit thresholds matches extremely well with the behavioral audibility curve. 3. The numbers of units in the nucleus also vary with their CF's. The greatest number of units occurs within the frequency range in which auditory thresholds are lowest. Smaller numbers of units represent the frequency ranges higher or lower than the most sensitive region. 4. The upper range of single unit CF's shows distinct interspecific variation which is correlated with the differences in the range of vocal frequencies. The upper limit of CF may be correlated with the bird's size. 5. The lowest thresholds of single auditory neurons tend to fall uniformly between −60 and −80 DB (re. 1 dyne per cm2) among different species. The differences between the highest and lowest unit thresholds are also homogeneous (40–50 DB) among different species. 6. Most songbirds do not seem to produce frequencies below 1 KHz but can hear them. 7. The popular belief that songbirds can hear frequencies inaudible to man is not supported by reliable evidence.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00297829
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...