Altered attentional filters in subjects with graded levels of sensorineural hearing loss
Christofer W Bester, Donald Robertson, Dunay Taljaard, Geoff Hammond
HEARING RESEARCH | ELSEVIER SCIENCE BV | Published : 2017
Near-threshold tones (targets) in noise that are preceded by cues of the same frequency or occur with a high probability are detected better than tones of other frequencies that may occur with a lower probability (probes); the better detection of targets than probes defines the attentional filter. We measured attentional filters using a cued probe-signal procedure with a two-interval forced-choice (2IFC) method in normal-hearing subjects (N = 15) and subjects with sensorineural hearing loss (SNHL; N = 14) with a range of hearing levels. Attentional filters were altered in SNHL subjects, who detected low-frequency probes as well as targets at all hearing levels and who detected high-frequency..View full abstract
Awarded by National Health and Medical Research Council of Australia
This research was funded by a grant from the National Health and Medical Research Council (1004734) of Australia awarded to DR and GH. CB was supported by an Australian Government Postgraduate Award. We thank Brian C.J. Moore for his advice and generous support in supplying software to calculate the adjustments of the background noise level required to compensate for hearing loss in the subjects with SNHL. We also thank Brian Moore and an anonymous reviewer for their comments on earlier versions of this paper.