PMID- 24966807
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20140626
LR  - 20211021
IS  - 1662-4548 (Print)
IS  - 1662-453X (Electronic)
IS  - 1662-453X (Linking)
VI  - 8
DP  - 2014
TI  - Impact of hearing protection devices on sound localization performance.
PG  - 135
LID - 10.3389/fnins.2014.00135 [doi]
LID - 135
AB  - Hearing Protection Devices (HPDs) can protect the ear against loud potentially 
      damaging sounds while allowing lower-level sounds such as speech to be perceived. 
      However, the impact of these devices on the ability to localize sound sources is 
      not well known. To address this question, we propose two different methods: one 
      behavioral and one dealing with acoustical measurements. For the behavioral 
      method, sound localization performance was measured with, and without, HPDs on 20 
      listeners. Five HPDs, including both passive (non-linear attenuation) and three 
      active (talk-through) systems were evaluated. The results showed a significant 
      increase in localization errors, especially front-back and up-down confusions 
      relative to the "naked ear" test condition for all of the systems tested, 
      especially for the talk-through headphone system. For the acoustic measurement 
      method, Head-Related Transfer Functions (HRTFs) were measured on an artificial 
      head both without, and with the HPDs in place. The effects of the HPDs on the 
      spectral cues for the localization of different sound sources in the horizontal 
      plane were analyzed. Alterations of the Interaural Spectral Difference (ISD) cues 
      were identified, which could explain the observed increase in front-back 
      confusions caused by the talk-through headphone protectors.
FAU - Zimpfer, Veronique
AU  - Zimpfer V
AD  - French-German Research Institute of Saint-Louis (ISL), Acoustics and Protection 
      of Soldier Group Saint-Louis, France.
FAU - Sarafian, David
AU  - Sarafian D
AD  - Institut de Recherche Biomedicale des Armees, Departement Action et Cognition en 
      Situation Operationnelle Bretigny sur Orge, France.
LA  - eng
PT  - Journal Article
DEP - 20140611
PL  - Switzerland
TA  - Front Neurosci
JT  - Frontiers in neuroscience
JID - 101478481
PMC - PMC4052631
OTO - NOTNLM
OT  - HRTF
OT  - behavioral method
OT  - hearing protection device
OT  - sound localization
OT  - spectral cues
EDAT- 2014/06/27 06:00
MHDA- 2014/06/27 06:01
PMCR- 2014/01/01
CRDT- 2014/06/27 06:00
PHST- 2013/11/18 00:00 [received]
PHST- 2014/05/14 00:00 [accepted]
PHST- 2014/06/27 06:00 [entrez]
PHST- 2014/06/27 06:00 [pubmed]
PHST- 2014/06/27 06:01 [medline]
PHST- 2014/01/01 00:00 [pmc-release]
AID - 10.3389/fnins.2014.00135 [doi]
PST - epublish
SO  - Front Neurosci. 2014 Jun 11;8:135. doi: 10.3389/fnins.2014.00135. eCollection 
      2014.