The goal of this study is to evaluate whether the percepts associated with the site of the electrode are multidimensional for subjects with cochlear implants. Several methods will be employed to determine an efficient paradigm for balancing loudness differences among the electrodes. Subsequently, the nature of the percepts will be assessed using pitch ranking, pitch scaling, multidimensional scaling and discrimination tasks. The data obtained from these procedures will be used to derive a subset of tasks that provide a characterization of the structure of the percepts.
| Ferguson, William D; Collins, Leslie M; Smith, David W (2003) Psychophysical threshold variability in cochlear implant subjects. Hear Res 180:101-13 |
| Throckmorton, C S; Collins, L M (2001) A comparison of two loudness balancing tasks in cochlear implant subjects using bipolar stimulation. Ear Hear 22:439-48 |
| Collins, L M; Throckmorton, C S (2000) Investigating perceptual features of electrode stimulation via a multidimensional scaling paradigm. J Acoust Soc Am 108:2353-65 |
| Huettel, L G; Collins, L M (1999) Using computational auditory models to predict simultaneous masking data: model comparison. IEEE Trans Biomed Eng 46:1432-40 |
| Throckmorton, C S; Collins, L M (1999) Investigation of the effects of temporal and spatial interactions on speech-recognition skills in cochlear-implant subjects. J Acoust Soc Am 105:861-73 |
| Gresham, L C; Collins, L M (1998) Analysis of the performance of a model-based optimal auditory signal processor. J Acoust Soc Am 103:2520-9 |
