Keiyu Niikuni's research while affiliated with Kanazawa Seiryo University and other places

Publications (34)

Article
We investigated pupillary responses to the world's shortest fixed verses, Japanese haiku as aesthetic poetry (AP) and senryu as comic poetry (CP), in comparison with non-poetry control stimuli (NP) comprised of slogans that had the same rhythm patterns. Native Japanese speakers without literary training listened to these stimuli while we recorded t...
Presentation
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We will propose that the Complex Negative Adjectives (CNAs) in Japanese are now undergoing lexicalization, and that lexicalization by ga-drop begins in relative clauses and can extend to the matrix clause for the following reasons: (a) the Nominative-Case-licensing requires non-defective Tense, (b) Tense can be defective in Japanese relative clause...
Article
Sense-of-agency (SoA) is implicated in a wide range of pro-survival behavioral capacities from a classical psychological perspective. However, in recent years, SoA has primarily been considered a sensorimotor process indexed by intentional binding, and pro-survival behavioral capacity has been considered multifactorial. To revisit their association...
Article
When comprehending (Japanese) null-subject sentences, people mentally simulate the linguistically depicted events without adopting a particular point-of-view (i.e., perspective) (Sato & Bergen, 2013). The present study examined whether a sense of agency (SoA), measured by the Sense of Agency Scale (Asai et al., 2009), predicts individual preference...
Chapter
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Japanese has a number of measure phrase (MP) constructions and the variation has been increased diachronically compared with 1000 years ago. This article reviews synchronic analyses of measure constructions in Japanese and other languages (Jackendoff 1977, Corver 2009, Watanabe 2011, 2013) and proposes a new analysis that can also cover the diachro...
Article
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In Japanese, coordination or juxtaposition of verbs or adjectives semantically antonymous to each other can form a NP. We argue that this is because there is a phonetically empty nominalizer in each conjunct and that the younger speakers are more likely to accept the new construction because it has been gradually developing. Abstract: In Japanese,...
Article
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The embodied cognition hypothesis postulates that human cognition is fundamentally grounded in our experience of interacting with the physical world (Barsalou in Behav Brain Sci 22:577–609, 1999). Research has shown bi-directional associations between physical action and the processes of understanding language: language comprehension seems to activ...
Article
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The word order that is easiest to understand in a language generally coincides with the word order most frequently used in that language. In Kaqchikel, however, there is a discrepancy between the two: the syntactically basic VOS incurs the least cognitive load, whereas SVO is most frequently employed. This suggests that processing load is primarily...
Chapter
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The noun "hazu" in Japanese, which was originally a common noun around up to 300 years ago, has been grammaticalized to a modal noun in combination with a copula "da" (= be), and it is now in the process of being further grammaticalized to a modal auxiliary in combination with a negative adjective "nai" (= not), which is de-nominalizing "hazu." If...
Article
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In many languages with subject-before-object as a syntactically basic word order, transitive sentences in which the subject precedes the object have been reported to have a processing advantage over those in which the subject follows the object in sentence comprehension. Three sources can be considered to account for this advantage, namely, syntact...
Conference Paper
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This paper argues that a verbal/adjectival phrases can be nominalized either by a nominal complementizer or by a nominalizer external to the VP/AP, and that this syntactic property can change diachronically in a single language, due to grammaticalization of formal nouns or constructionalization from compounds to clauses. To defend this hypothesis,...
Presentation
This paper argues that a verbal/adjectival phrases can be nominalized either by a nominal complementizer or by a nominalizer external to the VP/AP, and that this syntactic property can change diachronically in a single language, due to grammaticalization of formal nouns or constructionalization from compounds to clauses. To defend this hypothesis,...
Preprint
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In Japanese, Nominative Case on a subject in an adnominal clause can alternate with Genitive Case under limited syntactic and semantic conditions, a fact called Nominative/Genitive Conversion (NGC). An article written about 45 years ago that the range of possible environments for NGC was narrowing and identified two different idiolects distinguishe...
Preprint
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Over the last century, the frequency of Nominative/Genitive Conversion in Japanese has been 9 decreasing, and it is becoming more and more "stativized." This paper argues how and why such a syntactic change occurs using the framework of microparametric syntax, a version of generative syntax.
Conference Paper
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Nominative/Genitive Conversion in Japanese has been decreasing its frequency and becoming more and more "stativized" in Japanese in the last 100 years. This paper argues how and why such a syntactic change occurs in the framework of micro parametric syntax. Above all, we argue in this paper we will first present a corpus result showing that the a G...
Presentation
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We hypothesize that in Japanese, a relative clause whose subject is in the Genitive Case (simply, GSC) is diachronically shrinking from CP to TP to vP to VP/AP, meaning that the younger age groups will have a smaller syntactic structure for a GSC.In this presentation, this hypothesis is endorsed from a large-scale web-based survey showing that ther...
Conference Paper
Full-text available
In Japanese, Nominative Case on a subject in an adnominal clause can alternate with Genitive Case under limited syntactic and semantic conditions, a fact called "Nominative/Genitive Conversion" (NGC). Harada (1971) showed that the range of possible environments for NGC was narrowing and identified two different idiolects distinguished only in terms...
Article
Full-text available
More than one diachronic corpus has shown that the Nominative-Genitive Conversion (NGC) in Japanese, which might appear to be a free alternation in adnominal clauses, has declined its frequency in the last 100 years or so (Nambu, 2014; Ogawa, 2016). Harada (1971, 1976) also identified two dialects roughly corresponding to two different age groups a...
Article
The purpose of this study is to assess the usefulness of digital light processing (DLP) projectors as hardware for the presentation of visual stimuli, particularly within experiments that require highly accurate control over presentation durations and/or over the timing of successive visual stimuli. DLP (and liquid crystal displays (LCD)) projector...
Article
This study explored the effects of a comma on the processing of structurally ambiguous Japanese sentences with a semantic bias. A previous study has shown that a comma which is incompatible with an ambiguous sentence's semantic bias affects the processing of the sentence, but the effects of a comma that is compatible with the bias are unclear. In t...
Article
This study explored the effects of comma insertion on the processing of garden path sentences in Japanese. In two experiments, participants read relative clause sentences containing two ambiguities: single versus relative clause and early-opening (EO) versus late-opening (LO) left clause boundaries. EO sentences were presented with or without a com...
Article
抄録 This study explored the phonological role of punctuation in silent reading. Previous studies have suggested that commas trigger prosodic information, such as a pause, in implicit phonological processing during reading, which influences sentence processing considerably. In this study, 24 graduate and undergraduate students read, either silently o...

Citations

... Recent studies have suggested that the cognitive bias underlying the ST trait is related to the sense of self-agency based on forward model predictions. A study of the relationship between intentional binding, an established objective measure of the sense of self-agency in action, and the eight factors of the P2L identified a significant positive correlation between intentional binding and P2L-ST (Niikuni et al., 2022). Intentional binding is the process or degree of bias by which the time interval between one's action and the consequent sensory input is perceived to be shortened by forward model prediction; this is considered to be related to the sense of self-agency, particularly at the unconscious level (Haggard, 2017). ...
... Another finding shows that although the constituency from chi zao to chi-zao has not altered, the structure becomes nevertheless more condensed as a compound. The structural shift from phrases to compounds as lexical categories is supported by Shimamura (1986), who argues 9. Notice that Ogawa, Niikuni & Wada (2020) deal with a similar construction where the combination of verbs or adjectives with mutually antonymous meanings leads to a compound noun (e.g., agari-sagari 'go.up-go.down=going up and down repeatedly'). However, their study crucially differs from my case study in that constructionalization in Japanese proceeds from a compound or juxtaposition to a coordination then to a clause diachronically. ...
... Croft (2012) analyzes the direct mappings between specific event structures and syntactic positions (e.g., subject and object) (Rissman and Majid, 2019). Fuzzy semantic overlapping allows a member to belong to more than one community (Sato et al., 2020). Similarly, in language, semantic fusion helps a participant to enter two actions and link them into a composite event (Langacker, 2012). ...
... German, such as Dutch, is also a SOV language with a V2 phenomenon (i.e., the bern is at the final position in the canonical word order, but is syntactically moved to the second position of the sentence in a simple or the main clause). Therefore, it can be argued that the P600 found in Bott (2010) reflects a syntactic operation to derive the surface order from the canonical order (see Yano et al. (2019) for the elicitation of P600 effect when a sentence is processed with a word order that is different from its canonical one in the simple clause domain). Yet, this argument is not tenable, for the following reason. ...
... languages, but a few hints come from recent work on Kaqchikel, an endangered Mayan language spoken in Guatemala (Koizumi et al., 2014(Koizumi et al., , 2020Yasunaga et al., 2015;Koizumi and Kim, 2016). First, however, the following caveat should be noted. ...
... (12a-d) below). Ogawa's (2016Ogawa's ( , 2018 corpus study shows that although a Genitive subject co-occurring with an overt complementizer was already very low in frequency in the late 19th century where the special adnominal inflection has almost totally declined, its frequency steeply declined in the early 20th century and has almost totally disappeared in the 21st century; Miyagawa (2013) will not be able to explain this fact; (iii) Miyagawa's (2013) theory cannot make a principled explanation of the distinction both in the frequency and in the acceptability of a Genitive subject co-occurring with (i) a passivized transitive verb, (ii) the one co-occurring with an unaccusative eventive verb, and (iii) a stative verb, as all are combined with weak v in his theory (see the Appendix of this article for the corpus data showing the contrast between the three types of verbs, all being subsumed under the verbs dominated by a weak phasal vP, and see Ogawa et al. (2018b) for an experiment on acceptability difference between the three types of intransitive verbs). ...
... On the basis of Ogawa's (2016) observations, Niikuni et al. (2017) administered a largescale Internet-based survey that imposed an acceptability rating task for Nominative-and Genitive subject clauses like (8a-f) on those who were born and raised in the Tokyo metropolitan area, and concluded that the diachronic language change that Harada (1971Harada ( , 1976 identified about forty years ago is still in progress. ...
... See Ogawa, Niikuni and Wada (2017, 2018a, 2018b for other experiments that support the "clause shrinking" hypothesis by means of other syntactic constructions. ...
... Psycholinguistic research on Chinese sentence boundary perception has so far focused on prosodic and phonological boundaries in spoken Chinese as well (Lai et al., 2016). More broadly, a body of theoretical and experimental studies have explored the prosodic, syntactic, and semantic functions of punctuation in spoken or written texts and the ways in which punctuation may affect sentence processing and comprehension (e.g., Baron, 2001;Heggie & Wade-Woolley, 2018;Hirotani et al., 2006;Liu et al., 2010;Niikuni & Muramoto, 2014;Pynte & Kennedy, 2007;Scholes & Willis, 1990;Schou, 2007). Some researchers have also profiled the frequency distribution of punctuation marks (e.g., Kulig et al., 2017;Sun & Wang, 2019) and developed algorithms for automatic text punctuation (e.g., Christensen et al., 2001;Liu et al., 2006). ...