Neuere Hinweise zu ERA und ECOG ? aus physiologischer Sicht

Spreng, M

doi:10.1007/bf00465535

Cited by 8 publications

(1 citation statement)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…tones whose frequency is varied at various rates, have been used as stimuli (Spoor et a/. 1969, Clynes 1969, Jerger and Jerger 1970, Ruhm 1970, Lenhardt 1971, Spreng 1974. Cortical responses in the long latency range of 100-300 ms were picked up in these studies.…”

mentioning

confidence: 99%

Slow Evoked Cortical Responses to Linear Frequency Ramps of a Continuous Pure Tone

Arlinger

Jerlvall

Ahrén

et al. 1976

Acta Physiologica Scandinavica

View full text Add to dashboard Cite

Slow evoked cortical potentials from ten young normal-hearing subjects have been recorded as responses to linear frequency ramps of a continuous pure tone. Frequency changes from 10 to 500 Hz were studied; the rate of frequency change was varied from 0.02 to 50 kHz/s while the duration of the change was varied from 10 to 500 ms. The rate of frequency change was shown to have the greatest bearing on the responses except for frequency ramp durations below 50 ms and frequency changes below 50 Hz. The base frequencies (250-4000 Hz) and sound levels (20-80 dB HL) exerted an influence on the evoked responses that was qualitatively similar to their influence on behavioral thresholds. The direction of the frequency sweep had no significant influence on the evoked responses. A functional model is proposed in which the time derivate of the signal frequency is integrated with an adaptable integration time that is controlled by the rate of the frequency change.

show abstract

mentioning

confidence: 99%

Slow Evoked Cortical Responses to Linear Frequency Ramps of a Continuous Pure Tone

Arlinger

Jerlvall

Ahrén

et al. 1976

Acta Physiologica Scandinavica

View full text Add to dashboard Cite

show abstract

The Physiological Background of the Electric Response Audiometry

Keidel¹

1976

Handbook of Sensory Physiology

View full text Add to dashboard Cite

Cortical evoked potentials in response to brief modulation of signal amplitude

Wedel¹

1982

Arch Otorhinolaryngol

View full text Add to dashboard Cite

Human cortical evoked potentials were monitored with scalp electrodes as an indicator of the ability to resolve brief changes in an auditory signal. For a brief period in the middle of a noise pulse its intensity was increased or decreased. The magnitude and duration of this change was varied to establish (1) the threshold for the cortical evoked potential and (2) the effect on the evoked response (amplitude, latency) in the suprathreshold region. To evoke a stimulus-specific potential pattern, durations of about 16 ms were required for intensity changes of +3 dB. With an intensity step of +9 dB, the threshold duration was reduced to 4-6 ms. A brief increase in intensity was more associated with distinctly lower thresholds and larger response amplitudes than an equivalent reduction in intensity, duration being equal. These results confirm the critical durations found in psychoacoustic studies that offer valuable evidence as to the ability to resolve brief changes in an auditory signal.

show abstract

Neuere Hinweise zu ERA und ECOG ? aus physiologischer Sicht

Cited by 8 publications

References 15 publications

Slow Evoked Cortical Responses to Linear Frequency Ramps of a Continuous Pure Tone

Slow Evoked Cortical Responses to Linear Frequency Ramps of a Continuous Pure Tone

The Physiological Background of the Electric Response Audiometry

Cortical evoked potentials in response to brief modulation of signal amplitude

Contact Info

Product

Resources

About