Human Auditory Processing Relies on Preactivation of Sound-Specific Brain Activity Patterns. Research data from an EEG study.

Research Questions/Hypotheses:

Research Design:

Experimental design, Laboratory Experiment; single measurements

Measurement Instruments/Apparatus:

We measured event-related potentials elicited by sounds and omissions of those sounds. In different conditions, the sounds were either self-generated by the participant pressing a button or were externally generated during passive listening. In different conditions, omissions of the sounds were either frequent (50%) or rare (12%). We analyzed the ERPs in the time-window on the auditory N1, and performed inverse source localization for this time window using VARETA (variable resolution electromagnetic tomography; Bosch-Bayard et al. 2001). For more information see SanMiguel et al. (2013).

Data Collection Method:

Data collection in the presence of an experimenter

• Individual administration
• Computer-supported
• Specialized apparatuses or measuring instruments: EEG recordings

Population:

Healthy young adults (normal or corrected-to-normal vision, no hearing impairment, no history of psychiatric or neurological disease)

Survey Time Period:

Sample:

Convenience sample

Gender Distribution:

57,9 % female subjects (n=11)
42,1 % male subjects (n=8)

Age Distribution: 20-30 years

Spatial Coverage (Country/Region/City): Germany/-/Leipzig

Subject Recruitment:

Internal volunteer database oft the research unit Biocog, University of Leipzig.
Participants either received course credits or were reimbursed for their participation.

Sample Size:

19 individuals

Return/Drop Out:

Data collection for participant 19 was interrupted during the experiment due to low signal quality. Data from the subjects 2 and 6 were excluded due to excessive alpha waves.