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Research Articles

Identifying Cochlear Implant Channels with Poor Electrode-Neuron Interface: Partial Tripolar, Single-Channel Thresholds and Psychophysical Tuning Curves

Bierer, Julie Arenberg; Faulkner, Kathleen F.

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doi: 10.1097/AUD.0b013e3181c7daf4


In the article that appeared on page 247 of the April 2010 issue of Ear and Hearing, it was reported that all subjects were implanted with the HiFocus 1J electrode array with a center-to-center electrode distance of 1.1 mm. However, three of the original subjects had actually been implanted with the Helix array with electrode spacing of 0.85 mm (Helix array: S22, S23, and S24), leading to erroneous calculations of the psychophysical tuning curve slopes and widths (expressed in dB/mm and mm, respectively). The slope and width values for these subjects, and all related statistics, have been subsequently recalculated using the correct electrode spacing. The new calculations do not change the results or overall conclusions of the article; therefore, updated figures will not be reprinted. For reference, the following table lists the corrected statistics, sorted by figure.

The authors sincerely regret the error.

The affected figures are:

Figure 6 (p. 254). Summary of PTC slope calculations.

Figure 7 (p. 255). Summary of PTC width and depth calculations.

Figure 10 (p. 256). Summary of lower probe level PTC slopes, widths and depths calculations.

5+ images

Ear and Hearing. 32(5):633, September-October 2011.

© 2010 Lippincott Williams & Wilkins, Inc.