@article{JacobHeyerVerissimo2018,
  author    = {Jacob, Gunnar and Heyer, Vera and Verissimo, Joao Marques},
  title     = {Aiming at the same target},
  series = {International journal of bilingualism : cross-disciplinary, cross-linguistic studies of language behavior},
  volume    = {22},
  journal   = {International journal of bilingualism : cross-disciplinary, cross-linguistic studies of language behavior},
  number    = {6},
  publisher = {Sage Publ.},
  address   = {London},
  issn      = {1367-0069},
  doi       = {10.1177/1367006916688333},
  pages     = {619 -- 637},
  year      = {2018},
  abstract  = {Aims and objectives/purpose/research questions: We compared the processing of morphologically complex derived vs. inflected forms in native speakers of German and highly proficient native Russian second language (L2) learners of German. Design/methodology/approach: We measured morphological priming effects for derived and inflected German words. To ensure that priming effects were genuinely morphological, the design also contained semantic and orthographic control conditions. Data and analysis: 40 native speakers of German and 36 native Russian learners of L2 German participated in a masked-priming lexical-decision experiment. For both participant groups, priming effects for derived vs. inflected words were compared using linear mixed effects models. Findings/conclusions: While first language (L1) speakers showed similar facilitation effects for both derived and inflected primes, L2 speakers showed a difference between the two prime types, with robust priming effects only for derived, but not for inflected forms. Originality: Unlike in previous studies investigating derivation and inflection in L2 processing, priming effects for derived and inflected prime-target pairs were determined on the basis of the same target word, allowing for a direct comparison between the two morphological phenomena. In this respect, this is the first study to directly compare the processing of derived vs. inflected forms in L2 speakers. Significance/implications: The results are inconsistent with accounts predicting general L1/L2 differences for all types of morphologically complex forms as well as accounts assuming that L1 and L2 processing are based on the same mechanisms. We discuss theoretical implications for L2 processing mechanisms, and propose an explanation which can account for the data pattern.},
  language  = {en}
}
@misc{JacobClahsen2018,
  author    = {Jacob, Gunnar and Clahsen, Harald},
  title     = {Introduction},
  series = {Bilingualism : language and cognition},
  volume    = {21},
  journal   = {Bilingualism : language and cognition},
  number    = {3},
  publisher = {Cambridge Univ. Press},
  address   = {New York},
  issn      = {1366-7289},
  doi       = {10.1017/S1366728918000135},
  pages     = {435 -- 436},
  year      = {2018},
  abstract  = {The present thematic set of studies comprises five concise review articles on the use of priming paradigms in different areas of bilingualism research. Their aim is to provide readers with a quick overview of how priming paradigms can be employed in particular subfields of bilingualism research and to make readers aware of the methodological issues that need to be considered when using priming techniques.},
  language  = {en}
}
@article{Jacob2017,
  author    = {Jacob, Gunnar},
  title     = {Morphological priming in bilingualism research},
  series = {Bilingualism : language and cognition.},
  volume    = {21},
  journal   = {Bilingualism : language and cognition.},
  number    = {3},
  publisher = {Cambridge Univ. Press},
  address   = {New York},
  issn      = {1366-7289},
  doi       = {10.1017/S1366728917000451},
  pages     = {443 -- 447},
  year      = {2017},
  abstract  = {The review describes how morphological priming can be utilised to study the processing of morphologically complex words in bilinguals. The article starts with an overview of established experimental paradigms based on morphological priming, discusses a number of basic methodological pitfalls with regard to experimental design and materials, then reviews previous L2 morphological priming studies, and concludes with a brief discussion of recent developments in the field as well as possible future directions.},
  language  = {en}
}
@article{NakanoIkemotoJacobetal.2016,
  author    = {Nakano, Yoko and Ikemoto, Yu and Jacob, Gunnar and Clahsen, Harald},
  title     = {How Orthography Modulates Morphological Priming},
  series = {Frontiers in psychology},
  volume    = {7},
  journal   = {Frontiers in psychology},
  publisher = {Frontiers Research Foundation},
  address   = {Lausanne},
  issn      = {1664-1078},
  doi       = {10.3389/fpsyg.2016.00316},
  pages     = {10},
  year      = {2016},
  abstract  = {The current study investigates to what extent masked morphological priming is modulated by language-particular properties, specifically by its writing system. We present results from two masked priming experiments investigating the processing of complex Japanese words written in less common (moraic) scripts. In Experiment 1, participants performed lexical decisions on target verbs; these were preceded by primes which were either (i) a past-tense form of the same verb, (ii) a stem-related form with the epenthetic vowel -i, (iii) a semantically-related form, and (iv) a phonologically-related form. Significant priming effects were obtained for prime types (i), (ii), and (iii), but not for (iv). This pattern of results differs from previous findings on languages with alphabetic scripts, which found reliable masked priming effects for morphologically related prime/target pairs of type (i), but not for non-affixal and semantically-related primes of types (ii), and (iii). In Experiment 2, we measured priming effects for prime/target pairs which are neither morphologically, semantically, phonologically nor - as presented in their moraic scripts—orthographically related, but which—in their commonly written form—share the same kanji, which are logograms adopted from Chinese. The results showed a significant priming effect, with faster lexical-decision times for kanji-related prime/target pairs relative to unrelated ones. We conclude that affix-stripping is insufficient to account for masked morphological priming effects across languages, but that language-particular properties (in the case of Japanese, the writing system) affect the processing of (morphologically) complex words.},
  language  = {en}
}
@misc{NakanoIkemotoJacobetal.2016,
  author    = {Nakano, Yoko and Ikemoto, Yu and Jacob, Gunnar and Clahsen, Harald},
  title     = {How Orthography Modulates Morphological Priming},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-91692},
  pages     = {10},
  year      = {2016},
  abstract  = {The current study investigates to what extent masked morphological priming is modulated by language-particular properties, specifically by its writing system. We present results from two masked priming experiments investigating the processing of complex Japanese words written in less common (moraic) scripts. In Experiment 1, participants performed lexical decisions on target verbs; these were preceded by primes which were either (i) a past-tense form of the same verb, (ii) a stem-related form with the epenthetic vowel -i, (iii) a semantically-related form, and (iv) a phonologically-related form. Significant priming effects were obtained for prime types (i), (ii), and (iii), but not for (iv). This pattern of results differs from previous findings on languages with alphabetic scripts, which found reliable masked priming effects for morphologically related prime/target pairs of type (i), but not for non-affixal and semantically-related primes of types (ii), and (iii). In Experiment 2, we measured priming effects for prime/target pairs which are neither morphologically, semantically, phonologically nor - as presented in their moraic scripts—orthographically related, but which—in their commonly written form—share the same kanji, which are logograms adopted from Chinese. The results showed a significant priming effect, with faster lexical-decision times for kanji-related prime/target pairs relative to unrelated ones. We conclude that affix-stripping is insufficient to account for masked morphological priming effects across languages, but that language-particular properties (in the case of Japanese, the writing system) affect the processing of (morphologically) complex words.},
  language  = {en}
}
@article{JacobKatsikaFamilyetal.2017,
  author    = {Jacob, Gunnar and Katsika, Kalliopi and Family, Neiloufar and Allen, Shanley E. M.},
  title     = {The role of constituent order and level of embedding in cross-linguistic structural priming},
  series = {Bilingualism : language and cognition},
  volume    = {20},
  journal   = {Bilingualism : language and cognition},
  publisher = {Cambridge Univ. Press},
  address   = {New York},
  issn      = {1366-7289},
  doi       = {10.1017/S1366728916000717},
  pages     = {269 -- 282},
  year      = {2017},
  abstract  = {In two cross-linguistic priming experiments with native German speakers of L2 English, we investigated the role of constituent order and level of embedding in cross-linguistic structural priming. In both experiments, significant priming effects emerged only if prime and target were similar with regard to constituent order and also situated on the same level of embedding. We discuss our results on the basis of two current theoretical accounts of cross-linguistic priming, and conclude that neither an account based on combinatorial nodes nor an account assuming that constituent order is directly responsible for the priming effect can fully explain our data pattern. We suggest an account that explains cross-linguistic priming through a hierarchical tree representation. This representation is computed during processing of the prime, and can influence the formulation of a target sentence only when the structural features specified in it are grammatically correct in the target sentence.},
  language  = {en}
}
@article{JacobSafakDemiretal.2018,
  author    = {Jacob, Gunnar and Safak, Duygu Fatma and Demir, Orhan and Kirkici, Bilal},
  title     = {Preserved morphological processing in heritage speakers},
  series = {Second language research},
  volume    = {35},
  journal   = {Second language research},
  number    = {2},
  publisher = {Sage Publ.},
  address   = {London},
  issn      = {0267-6583},
  doi       = {10.1177/0267658318764535},
  pages     = {173 -- 194},
  year      = {2018},
  abstract  = {In a masked morphological priming experiment, we compared the processing of derived and inflected morphologically complex Turkish words in heritage speakers of Turkish living in Berlin and in native speakers of Turkish raised and living in Turkey. The results show significant derivational and inflectional priming effects of a similar magnitude in the heritage group and the control group. For both participant groups, semantic and orthographic control conditions indicate that these priming effects are genuinely morphological in nature, and cannot be due to semantic or orthographic similarity between prime and target. These results suggest that morphological processing in heritage speakers is based on the same fundamental processing mechanisms as in prototypical native speakers. We conclude that heritage speakers, despite the fact that they have acquired the language in a particular setting and were exposed to a relatively limited amount of input, can nevertheless develop native-like processing mechanisms for complex words.},
  language  = {en}
}
@article{JacobFleischhauerClahsen2013,
  author    = {Jacob, Gunnar and Fleischhauer, Elisabeth and Clahsen, Harald},
  title     = {Allomorphy and affixation in morphological processing - a cross-modal priming study with late bilinguals},
  series = {Bilingualism : language and cognition.},
  volume    = {16},
  journal   = {Bilingualism : language and cognition.},
  number    = {4},
  publisher = {Cambridge Univ. Press},
  address   = {New York},
  issn      = {1366-7289},
  doi       = {10.1017/S1366728913000291},
  pages     = {924 -- 933},
  year      = {2013},
  abstract  = {This study presents results from a cross-modal priming experiment investigating inflected verb forms of German. A group of late learners of German with Russian as their native language (L1) was compared to a control group of German L1 speakers. The experiment showed different priming patterns for the two participant groups. The L1 German data yielded a stem-priming effect for inflected forms involving regular affixation and a partial priming effect for irregular forms irrespective of stem allomorphy. By contrast, the data from the late bilinguals showed reduced priming effects for both regular and irregular forms. We argue that late learners rely more on lexically stored inflected word forms during word recognition and less on morphological parsing than native speakers.},
  language  = {en}
}
@unpublished{Jacob2015,
  author    = {Jacob, Gunnar},
  title     = {The L2 decomposition of transparent derived verbs - Is it 'morphological'? A commentary on De Grauwe, Lemhofer, Willems, \& Schriefers (2014)},
  series = {Frontiers in human neuroscienc},
  volume    = {9},
  journal   = {Frontiers in human neuroscienc},
  publisher = {Frontiers Research Foundation},
  address   = {Lausanne},
  issn      = {1662-5161},
  doi       = {10.3389/fnhum.2015.00220},
  pages     = {2},
  year      = {2015},
  language  = {en}
}
@misc{VerissimoHeyerJacobetal.2017,
  author    = {Ver{\´i}ssimo, Joao Marques and Heyer, Vera and Jacob, Gunnar and Clahsen, Harald},
  title     = {Selective effects of age of acquisition on morphological priming},
  series = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  journal   = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  number    = {486},
  issn      = {1866-8364},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-412611},
  pages     = {13},
  year      = {2017},
  abstract  = {Is there an ideal time window for language acquisition after which nativelike representation and processing are unattainable? Although this question has been heavily debated, no consensus has been reached. Here, we present evidence for a sensitive period in language development and show that it is specific to grammar. We conducted a masked priming task with a group of Turkish-German bilinguals and examined age of acquisition (AoA) effects on the processing of complex words. We compared a subtle but meaningful linguistic contrast, that between grammatical inflection and lexical-based derivation. The results showed a highly selective AoA effect on inflectional (but not derivational) priming. In addition, the effect displayed a discontinuity indicative of a sensitive period: Priming from inflected forms was nativelike when acquisition started before the age of 5 but declined with increasing AoA. We conclude that the acquisition of morphological rules expressing morphosyntactic properties is constrained by maturational factors.},
  language  = {en}
}