TY  - JOUR
A1  - Arantzeta, Miren
A1  - Webster, Janet
A1  - Laka, Itziar
A1  - Martinez-Zabaleta, Maite
A1  - Howard, David
T1  - What happens when they think they are right?
BT  - Error awareness analysis of sentence comprehension deficits in aphasia
JF  - Aphasiology : an international, interdisciplinary journal
N2  - Background: Comprehension of non-canonical sentences is frequently characterised by chance level performance in people with aphasia (PWA). Chance level performance has been interpreted as guessing, but online data does not support this rendering. It is still not clear whether the incorrect sentence processing is guided by the compensatory strategies that PWA might employ to overcome linguistic difficulties.Aims: We aim to study to what extent people with non-fluent aphasia are aware of their sentence comprehension deficits.Methods & Procedures: This study combined offline and online data to investigate the effect of word order and error-awareness on sentence comprehension in a group of PWA and non-brain damaged (NBD) participants. The offline tasks involved auditory sentence picture-matching immediately followed by a confidence rating (CR). Participants were asked to judge the perceived correctness of their previous answer. Online data consisted of eye-tracking.Outcomes & Results: Replicating previous findings, PWA had significantly worse comprehension of Theme-Agent order compared to Agent-Theme order sentences. Controls showed ceiling level sentence comprehension. CR was a poor predictor of response accuracy in PWA, but moderate-good in NBD. A total of 6.8% of judgements were classified as guessing by PWA. Post hoc gaze data analysis indicated that CR was a predictor of the fixation pattern during the presentation of the linguistic stimuli.Conclusions: Results suggest that PWA were mostly unaware of their sentence comprehension errors and did not consciously employ strategies to compensate for their difficulties.
KW  - Aphasia
KW  - sentence comprehension
KW  - error awareness
KW  - eye-tracking
KW  - anosognosia
Y1  - 2018
U6  - https://doi.org/10.1080/02687038.2017.1423270
SN  - 0268-7038
SN  - 1464-5041
VL  - 32
IS  - 12
SP  - 1418
EP  - 1444
PB  - Routledge, Taylor & Francis Group
CY  - Abingdon
ER  - 
TY  - JOUR
A1  - Tamasi, Katalin
A1  - Mckean, Cristina
A1  - Gafos, Adamantios I.
A1  - Höhle, Barbara
T1  - Children's gradient sensitivity to phonological mismatch
BT  - Considering the dynamics of looking behavior and pupil dilation
JF  - Journal of child language
N2  - In a preferential looking paradigm, we studied how children's looking behavior and pupillary response were modulated by the degree of phonological mismatch between the correct label of a target referent and its manipulated form. We manipulated degree of mismatch by introducing one or more featural changes to the target label. Both looking behavior and pupillary response were sensitive to degree of mismatch, corroborating previous studies that found differential responses in one or the other measure. Using time-course analyses, we present for the first time results demonstrating full separability among conditions (detecting difference not only between one vs. more, but also between two and three featural changes). Furthermore, the correct labels and small featural changes were associated with stable target preference, while large featural changes were associated with oscillating looking behavior, suggesting significant shifts in looking preference over time. These findings further support and extend the notion that early words are represented in great detail, containing subphonemic information.
KW  - lexical development
KW  - featural distance
KW  - mispronunciation detection
KW  - eye-tracking
KW  - pupillometry
Y1  - 2018
U6  - https://doi.org/10.1017/S0305000918000259
SN  - 0305-0009
SN  - 1469-7602
VL  - 46
IS  - 1
SP  - 1
EP  - 23
PB  - Cambridge Univ. Press
CY  - New York
ER  -