TY - JOUR A1 - Burchert, Frank A1 - Swoboda-Moll, Maria A1 - De Bleser, Ria T1 - The left periphery in agrammatic clausal representations : evidence from German N2 - Recently, neurolinguistic explanations informed by linguistic theory have been proposed to account for spontaneous and elicited agrammatic speech production. These are either formulated in terms of impaired representations or they refer to impaired processing. Both have in common that they assume severe disorders of question production due to vulnerability of the left periphery of sentence structures in the representational account, of verb movement in the processing account. We report the results of question elicitation and spontaneous speech analysis in eight chronic German agrammatic speakers. The results indicate that there is not one homogeneous agrammatic pattern, but that the data reveal double dissociations which cannot be accounted for by the unitary explanations of agrammatism which are presently available. An alternative explanation will be provided which-in contrast to the representational account not only refers to global hierarchically organized nodes but relies on linguistic differences within these nodes. The assumption that they can be differentially affected in agrammatism can account for the observed patterns. (c) 2005 Elsevier Ltd. All rights reserved Y1 - 2005 ER - TY - JOUR A1 - Rausch, P. A1 - Burchert, Frank A1 - De Bleser, Ria T1 - Parallels in the breakdown of CP and DP-internal movement processes in agrammatism : a preliminary case study Y1 - 2005 SN - 0093-934X ER - TY - JOUR A1 - Schröder, Astrid A1 - Stadie, Nicole A1 - Postler, Jenny A1 - Lorenz, Antje A1 - Swoboda-Moll, Maria A1 - Burchert, Frank A1 - De Bleser, Ria T1 - Does training-induced improvement of noncanonical sentence production in agrammatic aphasia generalize to comprehension? : a multiple single case study Y1 - 2005 SN - 0093-934X ER - TY - JOUR A1 - Burchert, Frank A1 - De Bleser, Ria T1 - Passives in agrammatic sentence comprehension : a German Study N2 - Background: A large number of studies examining agrammatic comprehension of canonical and non-canonical sentences in Broca's aphasia have focused on passives and results have been interpreted in theoretical frameworks such as the trace deletion hypothesis (TDH: Grodzinsky, 1995a). However, there are a number of unresolved issues associated with passives. The linguistic analysis of passive structures in different languages has remained controversial as well as the empirical neurolinguistic basis of agrammatic passive comprehension. In addition, a variety of morphological and semantic questions have been raised with respect to the implicit argument in short passives and the ordering of thematic roles reflected by different positions of the by-phrase in long passives. Aims: The major aims of the present study were to re-examine the analyses of passives with and without traces, the role of an implicit argument in short passives, and the influence of the position of the by-phrase on agrammatic sentence comprehension. Methods & Procedures: A binary picture-sentence matching task was administered to six non-fluent German agrammatic speakers. Various types of passives including long, short, and topicalised passives were tested. Additionally, comprehension of active SVO sentences was assessed in a separate but similar session. Only those patients whose comprehension on active sentences was above chance were included. Outcomes & Results: As a group, the six subjects performed above chance over all passive types. If only long canonical passives are considered, as is done in most studies, five subjects showed a pattern compatible with the TDH. However, the picture was modified if other passive constructions were taken into account, in which case only three of the six subjects showed TDH conformity. Conclusions: There is no unique pattern of agrammatic passive comprehension and only half of the agrammatic subjects conformed to the trace deletion hypothesis. Given the results on long canonical and topicalised passives, our data support linguistic analyses that assume a trace- based derivation of passives. Furthermore, the results are in line with linguistic analyses adopting an implicit argument in short passives. Since comprehension of topicalised passives with a canonical order of theta-roles was not better than that of long passives without a canonical order, the agrammatic problem with passives does not seem to hinge on semantics Y1 - 2004 ER - TY - JOUR A1 - Burchert, Frank A1 - Swoboda-Moll, Maria A1 - De Bleser, Ria T1 - Tense and agreement in clausal representations : Evidence from German agrammatic aphasia Y1 - 2004 ER - TY - JOUR A1 - Burchert, Frank A1 - De Bleser, Ria A1 - Sonntag, Katharina T1 - Does morphology make the difference? : Agrammatic sentence comprehension in German Y1 - 2003 ER - TY - GEN A1 - Ciaccio, Laura Anna A1 - Burchert, Frank A1 - Semenza, Carlo T1 - Derivational morphology in agrammatic aphasia BT - a comparison between prefixed and suffixed words T2 - Postprints der Universität Potsdam : Humanwissenschaftliche Reihe N2 - Although a relatively large number of studies on acquired language impairments have tested the case of derivational morphology, none of these have specifically investigated whether there are differences in how prefixed and suffixed derived words are impaired. Based on linguistic and psycholinguistic considerations on prefixed and suffixed derived words, differences in how these two types of derivations are processed, and consequently impaired, are predicted. In the present study, we investigated the errors produced in reading aloud simple, prefixed, and suffixed words by three German individuals with agrammatic aphasia (NN, LG, SA). We found that, while NN and LG produced similar numbers of errors with prefixed and suffixed words, SA showed a selective impairment for prefixed words. Furthermore, NN and SA produced more errors specifically involving the affix with prefixed words than with suffixed words. We discuss our findings in terms of relative position of stem and affix in prefixed and suffixed words, as well as in terms of specific properties of prefixes and suffixes. KW - Broca’s aphasia KW - morphological decomposition KW - morphological errors KW - derivation KW - prefixes Y1 - 2020 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-473995 SN - 1866-8364 IS - 648 ER - TY - JOUR A1 - Marusch, Tina A1 - Jäger, Lena Ann A1 - Neiss, Leander A1 - Burchert, Frank A1 - Nickels, Lyndsey T1 - Overt language production of German past participles BT - investigating (ir-)regularity JF - Language, cognition and neuroscience N2 - We report two experiments and Bayesian modelling of the data collected. In both experiments, participants performed a long-lag primed picture naming task. Black-and-white line drawings were used as targets, which were overtly named by the participants. Their naming latencies were measured. In both experiments, primes consisted of past participle verbs (er tanzt/er hat getanzt "he dances/he has danced") and the relationship between primes and targets was either morphological or unrelated. Experiment 1 additionally had phonologically and semantically related prime-target pairs as well as present tense primes. Both in Experiment 1 and 2, participants showed significantly faster naming latencies for morphologically related targets relative to the unrelated verb primes. In Experiment 1, no priming effects were observed in phonologically and semantically related control conditions. In addition, the production latencies were not influenced by verb type. KW - Overt language production KW - long-lag priming KW - regularity KW - Bayesian analysis KW - German past participles Y1 - 2019 U6 - https://doi.org/10.1080/23273798.2018.1527936 SN - 2327-3798 SN - 2327-3801 VL - 34 IS - 3 SP - 289 EP - 308 PB - Routledge, Taylor & Francis Group CY - Abingdon ER - TY - JOUR A1 - Ciaccio, Laura Anna A1 - Burchert, Frank A1 - Semenza, Carlo T1 - Derivational morphology in agrammatic aphasia BT - a comparison between prefixed and suffixed words JF - Frontiers in Psychology N2 - Although a relatively large number of studies on acquired language impairments have tested the case of derivational morphology, none of these have specifically investigated whether there are differences in how prefixed and suffixed derived words are impaired. Based on linguistic and psycholinguistic considerations on prefixed and suffixed derived words, differences in how these two types of derivations are processed, and consequently impaired, are predicted. In the present study, we investigated the errors produced in reading aloud simple, prefixed, and suffixed words by three German individuals with agrammatic aphasia (NN, LG, SA). We found that, while NN and LG produced similar numbers of errors with prefixed and suffixed words, SA showed a selective impairment for prefixed words. Furthermore, NN and SA produced more errors specifically involving the affix with prefixed words than with suffixed words. We discuss our findings in terms of relative position of stem and affix in prefixed and suffixed words, as well as in terms of specific properties of prefixes and suffixes. KW - Broca’s aphasia KW - morphological decomposition KW - morphological errors KW - derivation KW - prefixes Y1 - 2019 U6 - https://doi.org/10.3389/fpsyg.2020.01070 SN - 1664-1078 VL - 11 PB - Frontiers Research Foundation CY - Lausanne ER - TY - JOUR A1 - Arantzeta, Miren A1 - Bastiaanse, Roelien A1 - Burchert, Frank A1 - Wieling, Martijn Benjamin A1 - Martinez-Zabaleta, Maite A1 - Laka, Itziar T1 - Eye-tracking the effect of word order in sentence comprehension in aphasia BT - evidence from Basque, a free word order ergative language JF - Language, cognition and neuroscience N2 - Agrammatic speakers of languages with overt grammatical case show impaired use of the morphological cues to establish theta-role relations in sentences presented in non-canonical word orders. We analysed the effect of word order on the sentence comprehension of aphasic speakers of Basque, an ergative, free word order and head-final (SOV) language. Ergative languages such as Basque establish a one-to-one mapping of the thematic role and the case marker. We collected behavioural and gaze-fixation data while agrammatic speakers performed a picture-matching task with auditorily presented sentences with different word orders. We found that people with aphasia (PWA) had difficulties in assigning theta-roles in Theme-Agent order. This result is in line with processing accounts. Contrary to previous findings, our data do not suggest a systematic delay in the integration of morphological information in the PWA group, but strong reliance on the ergative case morphology and difficulties assigning thematic roles into the determiner phrases. KW - Aphasia KW - comprehension KW - Basque KW - sentence processing KW - eye-tracking Y1 - 2017 U6 - https://doi.org/10.1080/23273798.2017.1344715 SN - 2327-3798 SN - 2327-3801 VL - 32 IS - 10 SP - 1320 EP - 1343 PB - Routledge, Taylor & Francis Group CY - Abingdon ER - TY - JOUR A1 - Schumacher, Rebecca A1 - Burchert, Frank A1 - Ablinger, Irene T1 - Störungsortspezifische und modellgeleitete Diagnose erworbener Dyslexien JF - Spektrum Patholinguistik Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-437753 SN - 978-3-86956-448-7 SN - 1866-9085 SN - 1866-9433 IS - 11 SP - 81 EP - 90 PB - Universitätsverlag Potsdam CY - Potsdam ER - TY - JOUR A1 - Stahn, Corinna A1 - Hörnig, Robin A1 - Burchert, Frank A1 - De Bleser, Ria T1 - Die aphasische Verarbeitung räumlicher Relationen JF - Spektrum Patholinguistik Y1 - 2010 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-47025 SN - 1866-9433 SN - 1866-9085 VL - 3 SP - 151 EP - 154 PB - Universitätsverlag Potsdam CY - Potsdam ER - TY - JOUR A1 - Adelt, Anne A1 - Hanne, Sandra A1 - Burchert, Frank ED - Fritzsche, Tom ED - Meyer, Corinna B. ED - Adelt, Anne ED - Roß, Jennifer T1 - Verarbeitung von deutschen kanonischen und nicht-kanonischen Passivsätzen bei Aphasie BT - Eine Blickbewegungsuntersuchung JF - Spektrum Patholinguistik N2 - 1 Einleitung 2 Fragestellung 3 Methode 4 Ergebnisse 5 Diskussion 6 Literatur Y1 - 2013 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-68559 SN - 1866-9433 SN - 1866-9085 IS - 6 SP - 183 EP - 199 PB - Universitätsverlag Potsdam CY - Potsdam ER - TY - JOUR A1 - Vasishth, Shravan A1 - Nicenboim, Bruno A1 - Engelmann, Felix A1 - Burchert, Frank T1 - Computational Models of Retrieval Processes in Sentence Processing JF - Trends in Cognitive Sciences N2 - Sentence comprehension requires that the comprehender work out who did what to whom. This process has been characterized as retrieval from memory. This review summarizes the quantitative predictions and empirical coverage of the two existing computational models of retrieval and shows how the predictive performance of these two competing models can be tested against a benchmark data-set. We also show how computational modeling can help us better understand sources of variability in both unimpaired and impaired sentence comprehension. Y1 - 2019 U6 - https://doi.org/10.1016/j.tics.2019.09.003 SN - 1364-6613 SN - 1879-307X VL - 23 IS - 11 SP - 968 EP - 982 PB - Elsevier CY - London ER - TY - JOUR A1 - Mätzig, Paul A1 - Vasishth, Shravan A1 - Engelmann, Felix A1 - Caplan, David A1 - Burchert, Frank T1 - A computational investigation of sources of variability in sentence comprehension difficulty in aphasia JF - Topics in cognitive science N2 - We present a computational evaluation of three hypotheses about sources of deficit in sentence comprehension in aphasia: slowed processing, intermittent deficiency, and resource reduction. The ACT-R based Lewis and Vasishth (2005) model is used to implement these three proposals. Slowed processing is implemented as slowed execution time of parse steps; intermittent deficiency as increased random noise in activation of elements in memory; and resource reduction as reduced spreading activation. As data, we considered subject vs. object relative sentences, presented in a self-paced listening modality to 56 individuals with aphasia (IWA) and 46 matched controls. The participants heard the sentences and carried out a picture verification task to decide on an interpretation of the sentence. These response accuracies are used to identify the best parameters (for each participant) that correspond to the three hypotheses mentioned above. We show that controls have more tightly clustered (less variable) parameter values than IWA; specifically, compared to controls, among IWA there are more individuals with slow parsing times, high noise, and low spreading activation. We find that (a) individual IWA show differential amounts of deficit along the three dimensions of slowed processing, intermittent deficiency, and resource reduction, (b) overall, there is evidence for all three sources of deficit playing a role, and (c) IWA have a more variable range of parameter values than controls. An important implication is that it may be meaningless to talk about sources of deficit with respect to an abstract verage IWA; the focus should be on the individual's differential degrees of deficit along different dimensions, and on understanding the causes of variability in deficit between participants. KW - Sentence comprehension KW - Aphasia KW - Computational modeling KW - Cue-based retrieval Y1 - 2018 U6 - https://doi.org/10.1111/tops.12323 SN - 1756-8757 SN - 1756-8765 VL - 10 IS - 1 SP - 161 EP - 174 PB - Wiley CY - Hoboken ER - TY - JOUR A1 - Stahn, Corinna A1 - Hörning, Robin A1 - Burchert, Frank A1 - De Bleser, Ria T1 - Die aphasische Verarbeitung räumlicher Relationen Y1 - 2010 ER - TY - JOUR A1 - Adelt, Anne A1 - Hanne, Sandra A1 - Burchert, Frank T1 - Verarbeitung von deutschen kanonischen und nicht-kanonischen Passivsätzen bei Aphasie : eine Blickbewegungsuntersuchung Y1 - 2013 ER - TY - JOUR A1 - Marusch, Tina A1 - von der Malsburg, Titus Raban A1 - Bastiaanse, Roelien A1 - Burchert, Frank T1 - Tempusmorphologie bei deutschen Agrammatikern: Die Sprachproduktion von reguläten, irregulären und gemischten Verben Y1 - 2013 ER - TY - JOUR A1 - Schröder, Astrid A1 - Burchert, Frank A1 - Stadie, Nicole T1 - Training-induced improvement of noncanonical sentence production does not generalize to comprehension: evidence for modality-specific processes JF - Cognitive neuropsychology N2 - The presence or absence of generalization after treatment can provide important insights into the functional relationship between cognitive processes. The aim of the present study was to investigate the relationship between the cognitive processes that underlie sentence comprehension and production in aphasia. Using data from seven participants who took part in a case-series intervention study that focused on noncanonical sentence production [Stadie et al. (2008). Unambiguous generalization effects after treatment of noncanonical sentence production in German agrammatism. Brain and Language, 104, 211-229], we identified patterns of impairments and generalization effects for the two modalities. Results showed (a) dissociations between sentence structures and modalities before treatment, (b) an absence of cross-modal generalization from production to comprehension after treatment, and (c), a co-occurrence of spared comprehension before treatment and generalization across sentence structures within production after treatment. These findings are in line with the assumption of modality-specific, but interacting, cognitive processes in sentence comprehension and production. More specifically, this interaction is assumed to be unidirectional, allowing treatment-induced improvements in production to be supported by preserved comprehension. KW - syntactic processing of noncanonical sentences KW - sentence production KW - sentence comprehension KW - cross-modal generalization KW - aphasia treatment Y1 - 2015 U6 - https://doi.org/10.1080/02643294.2014.968535 SN - 0264-3294 SN - 1464-0627 VL - 32 IS - 3-4 SP - 195 EP - 220 PB - Routledge, Taylor & Francis Group CY - Abingdon ER - TY - GEN A1 - Marusch, Tina A1 - Jäger, Lena Ann A1 - Neiß, Leander A1 - Burchert, Frank A1 - Nickels, Lyndsey T1 - Overt language production of German past participles BT - investigating (ir-)regularity T2 - Postprints der Universität Potsdam : Humanwissenschaftliche Reihe N2 - We report two experiments and Bayesian modelling of the data collected. In both experiments, participants performed a long-lag primed picture naming task. Black-and-white line drawings were used as targets, which were overtly named by the participants. Their naming latencies were measured. In both experiments, primes consisted of past participle verbs (er tanzt/er hat getanzt “he dances/he has danced”) and the relationship between primes and targets was either morphological or unrelated. Experiment 1 additionally had phonologically and semantically related prime-target pairs as well as present tense primes. Both in Experiment 1 and 2, participants showed significantly faster naming latencies for morphologically related targets relative to the unrelated verb primes. In Experiment 1, no priming effects were observed in phonologically and semantically related control conditions. In addition, the production latencies were not influenced by verb type. T3 - Zweitveröffentlichungen der Universität Potsdam : Humanwissenschaftliche Reihe - 492 KW - overt language production KW - long-lag priming KW - regularity KW - Bayesian analysis KW - German past participles Y1 - 2018 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-420621 SN - 1866-8364 IS - 492 ER -