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Corps RE, Meyer AS. Word frequency has similar effects in picture naming and gender decision: A failure to replicate Jescheniak and Levelt (1994). Acta Psychol (Amst) 2023; 241:104073. [PMID: 37948879 DOI: 10.1016/j.actpsy.2023.104073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 09/28/2023] [Accepted: 10/26/2023] [Indexed: 11/12/2023] Open
Abstract
Word frequency plays a key role in theories of lexical access, which assume that the word frequency effect (WFE, faster access to high-frequency than low-frequency words) occurs as a result of differences in the representation and processing of the words. In a seminal paper, Jescheniak and Levelt (1994) proposed that the WFE arises during the retrieval of word forms, rather than the retrieval of their syntactic representations (their lemmas) or articulatory commands. An important part of Jescheniak and Levelt's argument was that they found a stable WFE in a picture naming task, which requires complete lexical access, but not in a gender decision task, which only requires access to the words' lemmas and not their word forms. We report two attempts to replicate this pattern, one with new materials, and one with Jescheniak and Levelt's orginal pictures. In both studies we found a strong WFE when the pictures were shown for the first time, but much weaker effects on their second and third presentation. Importantly these patterns were seen in both the picture naming and the gender decision tasks, suggesting that either word frequency does not exclusively affect word form retrieval, or that the gender decision task does not exclusively tap lemma access.
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Affiliation(s)
- Ruth E Corps
- Psychology of Language Department, Max Planck Institute for Psycholinguistics, The Netherlands.
| | - Antje S Meyer
- Psychology of Language Department, Max Planck Institute for Psycholinguistics, The Netherlands; Donders Centre of Cognition and Cognitive Neuroscience, Radboud University, The Netherlands
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2
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Nickels L, Lampe LF, Mason C, Hameau S. Investigating the influence of semantic factors on word retrieval: Reservations, results and recommendations. Cogn Neuropsychol 2022; 39:113-154. [PMID: 35972430 DOI: 10.1080/02643294.2022.2109958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
There is consensus that word retrieval starts with activation of semantic representations. However, in adults without language impairment, relatively little attention has been paid to the effects of the semantic attributes of to-be-retrieved words. This paper, therefore, addresses the question of which item-inherent semantic factors influence word retrieval. Specifically, it reviews the literature on a selection of these factors: imageability, concreteness, number of semantic features, typicality, intercorrelational density, featural distinctiveness, concept distinctiveness, animacy, semantic neighbourhood density, semantic similarity, operativity, valence, and arousal. It highlights several methodological challenges in this field, and has a focus on the insights from studies with people with aphasia where the effects of these variables are more prevalent. The paper concludes that further research simultaneously examining the effects of different semantic factors that are likely to affect lexical co-activation, and the interaction of these variables, would be fruitful, as would suitably scaled computational modelling of these effects in unimpaired language processing and in language impairment. Such research would enable the refinement of theories of semantic processing and word production, and potentially have implications for diagnosis and treatment of semantic and lexical impairments.
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Affiliation(s)
- Lyndsey Nickels
- School of Psychological Sciences, Macquarie University, Sydney, Australia.,Macquarie Centre for Reading, Macquarie University, Sydney, Australia
| | - Leonie F Lampe
- School of Psychological Sciences, Macquarie University, Sydney, Australia.,Department of Linguistics, University of Potsdam, Potsdam, Germany
| | - Catherine Mason
- School of Psychological Sciences, Macquarie University, Sydney, Australia.,Macquarie Centre for Reading, Macquarie University, Sydney, Australia
| | - Solène Hameau
- School of Psychological Sciences, Macquarie University, Sydney, Australia.,Macquarie Centre for Reading, Macquarie University, Sydney, Australia
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3
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Lin HP, Kuhlen AK, Melinger A, Aristei S, Abdel Rahman R. Concurrent semantic priming and lexical interference for close semantic relations in blocked-cyclic picture naming: Electrophysiological signatures. Psychophysiology 2021; 59:e13990. [PMID: 34931331 DOI: 10.1111/psyp.13990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Revised: 10/27/2021] [Accepted: 11/30/2021] [Indexed: 11/29/2022]
Abstract
In the present study, we employed event-related brain potentials to investigate the effects of semantic similarity on different planning stages during language production. We manipulated semantic similarity by controlling feature overlap within taxonomical hierarchies. In a blocked-cyclic naming task, participants named pictures in repeated cycles, blocked in semantically close, distant, or unrelated conditions. Only closely related items, but not distantly related items, induced semantic blocking effects. In the first presentation cycle, naming was facilitated, and amplitude modulations in the N1 component around 140-180 ms post-stimulus onset predicted this behavioral facilitation. In contrast, in later cycles, naming was delayed, and a negative-going posterior amplitude modulation around 250-350 ms post-stimulus onset predicted this interference. These findings indicate easier object recognition or identification underlying initial facilitation and increased difficulties during lexical selection. The N1 modulation was reduced but persisted in later cycles in which interference dominated, and the posterior negativity was also present in cycle 1 in which facilitation dominated, demonstrating concurrent effects of conceptual priming and lexical interference in all naming cycles. Our assumptions about the functional role these two opposing forces play in producing semantic context effects are further supported by the finding that the joint modulation of these two ERPs on naming latency exclusively emerged when naming closely related, but not unrelated items. The current findings demonstrate that close relations, but not distant taxonomic relations, induce stronger semantic blocking effects, and that temporally overlapping electrophysiological signatures reflect a trade-off between facilitatory priming and interfering lexical competition.
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Affiliation(s)
- Hsin-Pei Lin
- Department of Psychology, Humboldt-Universität zu Berlin, Berlin, Germany.,Berlin School of Mind and Brain, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Anna K Kuhlen
- Department of Psychology, Humboldt-Universität zu Berlin, Berlin, Germany
| | | | - Sabrina Aristei
- Department of Behavioral and Cognitive Sciences, Université du Luxembourg, Esch-sur-Alzette, Luxembourg
| | - Rasha Abdel Rahman
- Department of Psychology, Humboldt-Universität zu Berlin, Berlin, Germany.,Berlin School of Mind and Brain, Humboldt-Universität zu Berlin, Berlin, Germany
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4
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Anders R, Llorens A, Dubarry AS, Trébuchon A, Liégeois-Chauvel C, Alario FX. Cortical Dynamics of Semantic Priming and Interference during Word Production: An Intracerebral Study. J Cogn Neurosci 2019; 31:978-1001. [DOI: 10.1162/jocn_a_01406] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Language production requires that semantic representations are mapped to lexical representations on the basis of the ongoing context to select the appropriate words. This mapping is thought to generate two opposing phenomena, “semantic priming,” where multiple word candidates are activated, and “interference,” where these word activities are differentiated to make a goal-relevant selection. In previous neuroimaging and neurophysiological research, priming and interference have been associated to activity in regions of a left frontotemporal network. Most of such studies relied on recordings that either have high temporal or high spatial resolution, but not both. Here, we employed intracerebral EEG techniques to explore with both high resolutions, the neural activity associated with these phenomena. The data came from nine epileptic patients who were stereotactically implanted for presurgical diagnostics. They performed a cyclic picture-naming task contrasting semantically homogeneous and heterogeneous contexts. Of the 84 brain regions sampled, 39 showed task-evoked activity that was significant and consistent across two patients or more. In nine of these regions, activity was significantly modulated by the semantic manipulation. It was reduced for semantically homogeneous contexts (i.e., priming) in eight of these regions, located in the temporal ventral pathway as well as frontal areas. Conversely, it was increased only in the pre-SMA, notably at an early poststimulus temporal window (200–300 msec) and a preresponse temporal window (700–800 msec). These temporal effects respectively suggest the pre-SMA's role in initial conflict detection (e.g., increased response caution) and in preresponse control. Such roles of the pre-SMA are traditional from a history of neural evidence in simple perceptual tasks, yet are also consistent with recent cognitive lexicosemantic theories that highlight top–down processes in language production. Finally, although no significant semantic modulation was found in the ACC, future intracerebral EEG work should continue to inspect ACC with the pre-SMA.
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Affiliation(s)
- Royce Anders
- Aix-Marseille University, CNRS, LPC, Marseille, France
| | - Anaïs Llorens
- Aix-Marseille University, CNRS, LPC, Marseille, France
- Oslo University Hospital-Rikshospitalet
| | - Anne-Sophie Dubarry
- Aix-Marseille University, CNRS, LPC, Marseille, France
- Aix-Marseille University, CNRS, LPL, Aix-en-Provence, France
| | - Agnès Trébuchon
- Aix-Marseille University, CNRS, LPC, Marseille, France
- AP-HM, Neurophysiologie Clinique, Marseille, France
- Aix-Marseille University, INSERM, INS, Inst Neurosci Syst, Marseille, France
| | - Catherine Liégeois-Chauvel
- Aix-Marseille University, CNRS, LPC, Marseille, France
- Aix-Marseille University, INSERM, INS, Inst Neurosci Syst, Marseille, France
- Cleveland Clinic Foundation
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5
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Geraldo A, Azeredo A, Pasion R, Dores AR, Barbosa F. Fostering advances to neuropsychological assessment based on the Research Domain Criteria: The bridge between cognitive functioning and physiology. Clin Neuropsychol 2018; 33:327-356. [DOI: 10.1080/13854046.2018.1523467] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Andreia Geraldo
- Faculty of Psychology and Education Sciences, University of Porto, Porto, Portugal
- School of Health, Institute Polytechnic of Porto, Porto, Portugal
| | - Andreia Azeredo
- Faculty of Psychology and Education Sciences, University of Porto, Porto, Portugal
| | - Rita Pasion
- Faculty of Psychology and Education Sciences, University of Porto, Porto, Portugal
| | - Artemisa Rocha Dores
- Faculty of Psychology and Education Sciences, University of Porto, Porto, Portugal
- School of Health, Institute Polytechnic of Porto, Porto, Portugal
| | - Fernando Barbosa
- Faculty of Psychology and Education Sciences, University of Porto, Porto, Portugal
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6
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An intracerebral exploration of functional connectivity during word production. J Comput Neurosci 2018; 46:125-140. [DOI: 10.1007/s10827-018-0699-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Revised: 09/25/2018] [Accepted: 09/28/2018] [Indexed: 12/31/2022]
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7
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Which variables should be controlled for to investigate picture naming in adults? A Bayesian meta-analysis. Behav Res Methods 2018; 51:2533-2545. [DOI: 10.3758/s13428-018-1100-1] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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8
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Fargier R, Bürki A, Pinet S, Alario FX, Laganaro M. Word onset phonetic properties and motor artifacts in speech production EEG recordings. Psychophysiology 2017; 55. [DOI: 10.1111/psyp.12982] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Revised: 06/27/2017] [Accepted: 07/18/2017] [Indexed: 11/28/2022]
Affiliation(s)
- Raphaël Fargier
- Faculty of Psychology and Educational Sciences (FPSE); University of Geneva; Geneva Switzerland
| | - Audrey Bürki
- Faculty of Psychology and Educational Sciences (FPSE); University of Geneva; Geneva Switzerland
- Cognitive Sciences, Department of Linguistics; University of Potsdam; Potsdam Germany
| | - Svetlana Pinet
- Department of Neurology, School of Medicine; Johns Hopkins University; Baltimore Maryland USA
- Aix-Marseille Université, CNRS, LPC; Marseille France
| | | | - Marina Laganaro
- Faculty of Psychology and Educational Sciences (FPSE); University of Geneva; Geneva Switzerland
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9
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Inter-study and inter-Individual Consistency and Variability of EEG/ERP Microstate Sequences in Referential Word Production. Brain Topogr 2017; 30:785-796. [DOI: 10.1007/s10548-017-0580-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Accepted: 07/21/2017] [Indexed: 10/19/2022]
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10
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Facilitation and interference in naming: A consequence of the same learning process? Cognition 2017; 165:61-72. [PMID: 28501548 DOI: 10.1016/j.cognition.2017.04.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Revised: 04/25/2017] [Accepted: 04/30/2017] [Indexed: 11/21/2022]
Abstract
Our success with naming depends on what we have named previously, a phenomenon thought to reflect learning processes. Repeatedly producing the same name facilitates language production (i.e., repetition priming), whereas producing semantically related names hinders subsequent performance (i.e., semantic interference). Semantic interference is found whether naming categorically related items once (continuous naming) or multiple times (blocked cyclic naming). A computational model suggests that the same learning mechanism responsible for facilitation in repetition creates semantic interference in categorical naming (Oppenheim, Dell, & Schwartz, 2010). Accordingly, we tested the predictions that variability in semantic interference is correlated across categorical naming tasks and is caused by learning, as measured by two repetition priming tasks (picture-picture repetition priming, Exp. 1; definition-picture repetition priming, Exp. 2, e.g., Wheeldon & Monsell, 1992). In Experiment 1 (77 subjects) semantic interference and repetition priming effects were robust, but the results revealed no relationship between semantic interference effects across contexts. Critically, learning (picture-picture repetition priming) did not predict semantic interference effects in either task. We replicated these results in Experiment 2 (81 subjects), finding no relationship between semantic interference effects across tasks or between semantic interference effects and learning (definition-picture repetition priming). We conclude that the changes underlying facilitatory and interfering effects inherent to lexical access are the result of distinct learning processes where multiple mechanisms contribute to semantic interference in naming.
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11
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Belke E. The Role of Task-Specific Response Strategies in Blocked-Cyclic Naming. Front Psychol 2017; 7:1955. [PMID: 28119637 PMCID: PMC5221667 DOI: 10.3389/fpsyg.2016.01955] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Accepted: 11/29/2016] [Indexed: 11/30/2022] Open
Abstract
In word retrieval, speakers need to select a lexical entry among several co-activated candidates for lexicalization. How a target entry is selected is a matter of ongoing debate. Semantic context effects on naming times, as seen in the blocked-cyclic naming paradigm, are of specific interest to this debate. In the standard version of this paradigm, participants name lists of objects compiled from several repetitions (cycles) of a small set of semantically related objects (homogeneous context) or unrelated objects (heterogeneous context). In the first cycle, participants typically show either no context effect or semantic facilitation. From cycle two onward, they display a stable semantic interference effect that does not increase over cycles. In this review, I demonstrate that the early semantic facilitation effect is only observed consistently in studies that present homogeneous and heterogeneous lists in a blocked fashion. With this design, participants can easily pick up on the categorical relatedness of the items in semantically related contexts and apply this knowledge strategically. In principle, such response strategies can be easily tied in with existing models of lexical selection, but they are incompatible with accounts of semantic context effects that take the semantic facilitation effect in cycle 1 to be a consequence of processes inherent to the lexicalization process. Users of the blocked-cyclic naming paradigm should review their experimental designs carefully regarding potential response strategies. Once these are taken into account, the paradigm can be used to study lexical-semantic encoding in different populations of healthy and also impaired speakers.
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Affiliation(s)
- Eva Belke
- Sprachwissenschaftliches Institut, Ruhr-Universität Bochum Bochum, Germany
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12
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Llorens A, Dubarry AS, Trébuchon A, Chauvel P, Alario FX, Liégeois-Chauvel C. Contextual modulation of hippocampal activity during picture naming. BRAIN AND LANGUAGE 2016; 159:92-101. [PMID: 27380274 DOI: 10.1016/j.bandl.2016.05.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Revised: 05/17/2016] [Accepted: 05/24/2016] [Indexed: 06/06/2023]
Abstract
Picture naming is a standard task used to probe language processes in healthy and impaired speakers. It recruits a broad neural network of language related areas, among which the hippocampus is rarely included. However, the hippocampus could play a role during picture naming, subtending, for example, implicit learning of the links between pictured objects and their names. To test this hypothesis, we recorded hippocampal activity during plain picture naming, without memorization requirement; we further assessed whether this activity was modulated by contextual factors such as repetition priming and semantic interference. Local field potentials recorded from intracerebral electrodes implanted in the healthy hippocampi of epileptic patients revealed a specific and reliable pattern of activity, markedly modulated by repetition priming and semantic context. These results indicate that the hippocampus is recruited during picture naming, presumably in relation to implicit learning, with contextual factors promoting differential hippocampal processes, possibly subtended by different sub-circuitries.
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Affiliation(s)
- A Llorens
- Aix Marseille Univ, Inserm, Institut des Neurosciences des Systemes, Marseille, France; Aix Marseille Univ, CNRS, UMR7290, LPC, Marseille, France
| | - A-S Dubarry
- Aix Marseille Univ, Inserm, Institut des Neurosciences des Systemes, Marseille, France; Aix Marseille Univ, CNRS, UMR7290, LPC, Marseille, France
| | - A Trébuchon
- Aix Marseille Univ, Inserm, Institut des Neurosciences des Systemes, Marseille, France; AP-HM, Neurophysiologie Clinique, Marseille, France
| | - P Chauvel
- Aix Marseille Univ, Inserm, Institut des Neurosciences des Systemes, Marseille, France; AP-HM, Neurophysiologie Clinique, Marseille, France
| | - F-X Alario
- Aix Marseille Univ, CNRS, UMR7290, LPC, Marseille, France
| | - C Liégeois-Chauvel
- Aix Marseille Univ, Inserm, Institut des Neurosciences des Systemes, Marseille, France.
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13
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Pinet S, Dubarry AS, Alario FX. Response retrieval and motor planning during typing. BRAIN AND LANGUAGE 2016; 159:74-83. [PMID: 27344127 DOI: 10.1016/j.bandl.2016.05.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Revised: 05/18/2016] [Accepted: 05/28/2016] [Indexed: 06/06/2023]
Abstract
Recent work in language production research suggests complex relationships between linguistic and motor processes. Typing is an interesting candidate for investigating further this issue. First, typing presumably relies on the same distributed left-lateralized brain network as handwriting and speech production. Second, typing has its own set of highly specific motor constraints, such as internal keystroke representations that hold information about both letter identity and spatial characteristics of the key to strike. The present study aims to further develop research on typed production, by targeting the dynamics between linguistic and motor neural networks. Specifically, we used a typed picture-naming task to examine the interplay between response retrieval and motor planning. To track processes associated with both linguistic processing and keystroke representation, we manipulated, respectively, the semantic context in which the target appeared and the side of the first keystrokes of the word. We recorded high-density electroencephalography (EEG) continuously from the presentation of a picture, to the typing of its name, and computed both event-related potentials (ERP) and beta-band power analyses. Non-parametric data-driven analysis revealed a clear pattern of response preparation over both hemispheres close to response time, in both the ERP and beta-band power modulations. This was preceded by a left-lateralized power decrease in the beta-band, presumably representing memory retrieval, and an early contrast in ERP, between left and right keystrokes' preparation. We discuss these results in terms of a dynamic access approach for internal keystroke representations, and argue for an integrative rather than separatist view of linguistic and motor processes.
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Affiliation(s)
| | - Anne-Sophie Dubarry
- Aix Marseille Univ, CNRS, LPC, Marseille, France; Aix Marseille Univ, INSERM, INS, Inst Neurosci Syst, Marseille, France
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14
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Sequential processing during noun phrase production. Cognition 2016; 146:90-9. [DOI: 10.1016/j.cognition.2015.09.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Revised: 09/01/2015] [Accepted: 09/03/2015] [Indexed: 11/20/2022]
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15
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Riès SK, Karzmark CR, Navarrete E, Knight RT, Dronkers NF. Specifying the role of the left prefrontal cortex in word selection. BRAIN AND LANGUAGE 2015; 149:135-47. [PMID: 26291289 PMCID: PMC4712683 DOI: 10.1016/j.bandl.2015.07.007] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Revised: 07/13/2015] [Accepted: 07/15/2015] [Indexed: 05/24/2023]
Abstract
Word selection allows us to choose words during language production. This is often viewed as a competitive process wherein a lexical representation is retrieved among semantically-related alternatives. The left prefrontal cortex (LPFC) is thought to help overcome competition for word selection through top-down control. However, whether the LPFC is always necessary for word selection remains unclear. We tested 6 LPFC-injured patients and controls in two picture naming paradigms varying in terms of item repetition. Both paradigms elicited the expected semantic interference effects (SIE), reflecting interference caused by semantically-related representations in word selection. However, LPFC patients as a group showed a larger SIE than controls only in the paradigm involving item repetition. We argue that item repetition increases interference caused by semantically-related alternatives, resulting in increased LPFC-dependent cognitive control demands. The remaining network of brain regions associated with word selection appears to be sufficient when items are not repeated.
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Affiliation(s)
- S K Riès
- Department of Psychology and Helen Wills Neuroscience Institute, University of California, Berkeley, USA; Veterans Affairs Northern California Health Care System, Martinez, USA.
| | - C R Karzmark
- Department of Psychology and Helen Wills Neuroscience Institute, University of California, Berkeley, USA
| | - E Navarrete
- Dipartimento di Psicologia dello Sviluppo e della Socializzazione, Università di Padova, Italy
| | - R T Knight
- Department of Psychology and Helen Wills Neuroscience Institute, University of California, Berkeley, USA
| | - N F Dronkers
- Veterans Affairs Northern California Health Care System, Martinez, USA; University of California, Davis, USA; National Research University Higher School of Economics, Russian Federation
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16
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MacDonald AD, Heath S, McMahon KL, Nickels L, Angwin AJ, van Hees S, Johnson K, Copland DA. Neuroimaging the short- and long-term effects of repeated picture naming in healthy older adults. Neuropsychologia 2015; 75:170-8. [PMID: 26071256 DOI: 10.1016/j.neuropsychologia.2015.06.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Revised: 05/18/2015] [Accepted: 06/05/2015] [Indexed: 11/15/2022]
Abstract
Repeated attempts to name pictures can improve subsequent naming for aphasic individuals with anomia, however, the neurocognitive mechanisms responsible for such improvements are unknown. This study investigated repeated picture naming in healthy older adults over a period of minutes (short-term) after one repetition and a period of days (long-term) after multiple repetitions. Compared to unprimed pictures, both repeated conditions showed faster naming latencies with the fastest latencies evident for the short-term condition. Neuroimaging results identified repetition suppression effects across three left inferior frontal gyrus regions of interest: for both the short- and long-term conditions in the pars orbitalis, and for long-term items in the pars triangularis and pars opercularis regions. The whole brain analysis also showed a repetition suppression effect in bilateral pars triangularis regions for the long-term condition. These findings within the inferior frontal gyrus suggest that effects of repeated naming may be driven by a mapping mechanism across multiple levels of representation, possibly reflecting different levels of learning, and lend support to the idea that processing may be hierarchically organised in the left inferior frontal gyrus. The whole brain analysis also revealed repetition suppression for the long-term condition within the posterior portion of bilateral inferior temporal gyri, which may reflect attenuation of integration processes within this region following the learning of task-relevant information.
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Affiliation(s)
- Anna D MacDonald
- The University of Queensland, UQ Centre for Clinical Research, Brisbane, Australia; NHMRC Centre for Clinical Research Excellence in Aphasia Rehabilitation, Australia.
| | - Shiree Heath
- Macquarie University, ARC Centre of Excellence in Cognition and its Disorders, Department of Cognitive Science, Sydney, Australia.
| | - Katie L McMahon
- The University of Queensland, Centre for Advanced Imaging, Brisbane, Australia.
| | - Lyndsey Nickels
- NHMRC Centre for Clinical Research Excellence in Aphasia Rehabilitation, Australia; Macquarie University, ARC Centre of Excellence in Cognition and its Disorders, Department of Cognitive Science, Sydney, Australia.
| | - Anthony J Angwin
- NHMRC Centre for Clinical Research Excellence in Aphasia Rehabilitation, Australia; The University of Queensland, School of Health and Rehabilitation Sciences, Division of Speech Pathology, Brisbane, Australia.
| | - Sophia van Hees
- The University of Queensland, UQ Centre for Clinical Research, Brisbane, Australia; NHMRC Centre for Clinical Research Excellence in Aphasia Rehabilitation, Australia; The University of Queensland, School of Health and Rehabilitation Sciences, Division of Speech Pathology, Brisbane, Australia.
| | - Kori Johnson
- The University of Queensland, Centre for Advanced Imaging, Brisbane, Australia.
| | - David A Copland
- The University of Queensland, UQ Centre for Clinical Research, Brisbane, Australia; NHMRC Centre for Clinical Research Excellence in Aphasia Rehabilitation, Australia; The University of Queensland, School of Health and Rehabilitation Sciences, Division of Speech Pathology, Brisbane, Australia.
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