title: An eye-tracking paradigm for analyzing the processing time of sentences with different linguistic complexities.
abstract: An eye-tracking paradigm was developed for use in audiology in order to enable online analysis of the speech comprehension process. This paradigm should be useful in assessing impediments in speech processing. In this paradigm, two scenes, a target picture and a competitor picture, were presented simultaneously with an aurally presented sentence that corresponded to the target picture. At the same time, eye fixations were recorded using an eye-tracking device. The effect of linguistic complexity on language processing time was assessed from eye fixation information by systematically varying linguistic complexity. This was achieved with a sentence corpus containing seven German sentence structures. A novel data analysis method computed the average tendency to fixate the target picture as a function of time during sentence processing. This allowed identification of the point in time at which the participant understood the sentence, referred to as the decision moment. Systematic differences in processing time were observed as a function of linguistic complexity. These differences in processing time may be used to assess the efficiency of cognitive processes involved in resolving linguistic complexity. Thus, the proposed method enables a temporal analysis of the speech comprehension process and has potential applications in speech audiology and psychoacoustics.
authors.affiliation: Medizinische Physik and Cluster of Excellence Hearing4all, Universität Oldenburg, Oldenburg, Germany.
authors.forename: Dorothea
authors.initials: D
authors.lastname: Wendt
authors.affiliation: Medizinische Physik and Cluster of Excellence Hearing4all, Universität Oldenburg, Oldenburg, Germany.
authors.forename: Thomas
authors.initials: T
authors.lastname: Brand
authors.affiliation: Medizinische Physik and Cluster of Excellence Hearing4all, Universität Oldenburg, Oldenburg, Germany.
authors.forename: Birger
authors.initials: B
authors.lastname: Kollmeier
mesh_terms: D000293:Adolescent; D000328:Adult; D001298:Audiology; D032882:Comprehension / Q000502:physiology*; D005260:Female; D005403:Fixation, Ocular; D006801:Humans; D008037:Linguistics; D008297:Male; D009799:Ocular Physiological Phenomena; D010775:Photic Stimulation; D011571:Psychoacoustics; D011930:Reaction Time; D021641:Recognition, Psychology / Q000502:physiology; D013223:Statistics as Topic; D055815:Young Adult