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The Technical and Physiological Effects of Opn S

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1.  In naturalistic conversational situations:
  1. The listener always looks at the talker even when the conversation moves from person to person
  2. The listener may monitor more than one talker at a time
  3. It is impossible to listen to more than one person at a time
  4. All sounds in the room are consciously monitored
2.  The EEG signal:
  1. Can only be measured in children
  2. Show high resolution in the spatial domain
  3. Show high resolution in the temporal domain
  4. Shows high resolution in both spatial and temporal domains
3.  The EEG can be used:
  1. To measure the brain’s response to auditory stimulation
  2. In the diagnosis of epilepsy
  3. In the study of sleep disorders
  4. All of the above
4.  In the experiment described, the listener heard:
  1. Only one talker at a time
  2. Speech that alternated between one talker and the other
  3. Two people talking simultaneously
  4. Only machine generated speech
5.  In the experiment described, when OpenSound Navigator was off:
  1. the secondary talker and the background noise were equally represented in the EEG recordings
  2. the listener did not show evidence of being able to track the primary talker
  3. the presence of a second talker eliminated the ability to track the primary talker
  4. both the primary and the secondary talkers were equally represented in the EEG recordings
6.  When OpenSound Navigator was activated:
  1. The strength of correlation to the primary talker increased
  2. The strength of correlation to the secondary talker increased
  3. The strength of correlation to the background babble decreased
  4. All of the above
7.  Reducing the load on the brain for a person with hearing loss when listening in challenging environments can be shown using:
  1. EEG
  2. Pupilometry
  3. Cortisol testing
  4. All of the above
8.  OpenSound Navigator:
  1. Works on a time basis that allows for updates every 10 mSec
  2. Uses a design that provides spatial information to the noise reduction part of the system
  3. Analyzes the sound scene on multiple dimensions before directional or noise reduction effects are applied
  4. All of the above
9.  When presented with steady state speech noise:
  1. OpenSound Navigator only uses directionality to manage the noise
  2. OpenSound Navigator is designed to present all sounds to the listener
  3. OpenSound Navigator reacts to suppress the noise significantly faster than other signal processing approaches
  4. All of the above
10.  When presented with short duration, realistic noise from different directions, OpenSound Navigator:
  1. reacts to suppress the noise significantly faster and more effectively than other signal processing approaches
  2. can only suppress the noise if it is coming directly from behind
  3. will at first suppress the noise but then eventually let it through once the listener has adapted to it
  4. will not attempt to suppress the noise at all

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