Influence of capitalisation and presence of an article in noun phrase recognition in German: Evidence from eye-tracking

Abstract

Background: German is exceptional in its use of noun capitalisation. It has been suggested that sentence-internal capitalisation as in German may benefit processing by specifically marking a noun and thus a noun phrase (NP). However, other cues, such as a determiner, can also indicate an NP. The influence of capitalisation on processing may thus be context-dependent, that is, dependent on other cues. Precisely this context dependency is investigated in the current study: Is there an effect of capitalisation on reading and is this affected by the presence of other cues such as a determiner (specifically, an article)?. Methods: We ran an eye-tracking study with 30 German-speaking adults, measuring fixations during sentence reading. Critical NPs either contained correctly capitalised nouns or not and were presented either with or without a determiner. Results: The results show that both the presence of capitalisation on the noun and the presence of a determiner led to faster reading. When no determiner was present to signal the NP, the presence of noun capitalisation aided reading most. Conclusions: From these results, we conclude that the influence of capitalisation is indeed context dependent: Capitalisation aids processing most when no other cue is present. Thus, different cues play a role in NP recognition. Based on these findings, we argue that noun capitalisation should not be studied in isolation. We argue that a better understanding of capitalisation as a reading aid is relevant for teaching reading strategies.