Validation of a Dual-Task Paradigm to investigate Listening Effort in Speech-Shaped Noise versus Multi-Talker Babble
Bachelor Thesis of Berger, Jana
Listening effort can be defined as the use of cognitive resources necessary to complete a task or follow a conversation. The words heard must be consciously received in order to understand, implement and further communicate them. Communication is an essential part of everyday social life and is usually connected with background noise. The aim of the present study is to investigate the effect of different types of noise on listening effort and to validate the newly-developed dual-task paradigm for children. For this purpose, a listening experiment is conducted with 24 normal-hearing adults between 18 and 26 years to investigate listening effort using a dual-task paradigm. Different noise conditions are considered in comparison to noise-free conditions. The first task of the dual-task paradigm consists of a ‘double word recognition task’, the second task is a ‘memory task’. It is expected that the listening effort increase under noisy conditions, as more cognitive resources are required for the first task of the dual-task paradigm due to the noise.