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Cantarella G, Vianello G, Vezzadini G, Frassinetti F, Ciaramelli E, Candini M. Time bisection and reproduction: Evidence for a slowdown of the internal clock in right brain damaged patients. Cortex 2023; 167:303-317. [PMID: 37595392 DOI: 10.1016/j.cortex.2023.05.024] [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: 10/06/2022] [Revised: 03/31/2023] [Accepted: 05/24/2023] [Indexed: 08/20/2023]
Abstract
Previous studies show that the right hemisphere is involved in time processing, and that damage to the right hemisphere is associated with a tendency to perceive time intervals as shorter than they are, and to reproduce time intervals as longer than they are. Whether time processing deficits following right hemisphere damage are related and what is their neurocognitive basis is unclear. In this study, right brain damaged (RBD) patients, left brain damaged (LBD) patients, and healthy controls underwent a time bisection task and a time reproduction task involving time intervals varying between each other by milliseconds (short durations) or seconds (long durations). The results show that in the time bisection task RBD patients underestimated time intervals compared to LBD patients and healthy controls, while they reproduced time intervals as longer than they are. Time underestimation and over-reproduction in RBD patients applied to short but not long time intervals, and were correlated. Voxel-based lesion-symptom mapping (VLSM) showed that time underestimation was associated with lesions to a right cortico-subcortical network involving the insula and inferior frontal gyrus. A small portion of this network was also associated with time over-reproduction. Our findings are consistent with a slowdown of an 'internal clock' timing mechanism following right brain damage, which likely underlies both the underestimation and the over-reproduction of time intervals, and their (overlapping) neural bases.
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Affiliation(s)
- Giovanni Cantarella
- Department of Psychology 'Renzo Canestrari', University of Bologna, Bologna, Italy; Center for Studies and Research of Cognitive Neuroscience, University of Bologna, Cesena, Italy
| | - Greta Vianello
- Istituti Clinici Scientifici Maugeri IRCCS, Castel Goffredo, Italy
| | | | - Francesca Frassinetti
- Department of Psychology 'Renzo Canestrari', University of Bologna, Bologna, Italy; Istituti Clinici Scientifici Maugeri IRCCS, Castel Goffredo, Italy
| | - Elisa Ciaramelli
- Department of Psychology 'Renzo Canestrari', University of Bologna, Bologna, Italy; Center for Studies and Research of Cognitive Neuroscience, University of Bologna, Cesena, Italy.
| | - Michela Candini
- Department of Psychology 'Renzo Canestrari', University of Bologna, Bologna, Italy.
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Turriziani P, Chiaramonte G, Mangano GR, Bonaventura RE, Smirni D, Oliveri M. Improvement of phonemic fluency following leftward prism adaptation. Sci Rep 2021; 11:7313. [PMID: 33790347 PMCID: PMC8012568 DOI: 10.1038/s41598-021-86625-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Accepted: 03/15/2021] [Indexed: 11/19/2022] Open
Abstract
Anatomo functional studies of prism adaptation (PA) have been shown to modulate a brain frontal-parieto-temporal network, increasing activation of this network in the hemisphere ipsilateral to the side of prism deviation. This effect raises the hypothesis that left prism adaptation, modulating frontal areas of the left hemisphere, could modify subjects’ performance on linguistic tasks that map on those areas. To test this hypothesis, 51 healthy subjects participated in experiments in which leftward or rightward prism adaptation were applied before the execution of a phonemic fluency task, i.e., a task with strict left hemispheric lateralization onto frontal areas. Results showed that leftward PA significantly increased the number of words produced whereas rightward PA did not significantly modulate phonemic fluency. The present findings document modulation of a language ability following prism adaptation. The results could have a huge clinical impact in neurological populations, opening new strategies of intervention for language and executive dysfunctions.
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Affiliation(s)
- Patrizia Turriziani
- Department of Psychology, Educational Sciences and Human Movement, University of Palermo, Viale delle Scienze, Ed. 15, 90128, Palermo, Italy.,NeuroTeam Life and Science, Palermo, Italy
| | - Gabriele Chiaramonte
- Department of Psychology, Educational Sciences and Human Movement, University of Palermo, Viale delle Scienze, Ed. 15, 90128, Palermo, Italy
| | - Giuseppa Renata Mangano
- Department of Psychology, Educational Sciences and Human Movement, University of Palermo, Viale delle Scienze, Ed. 15, 90128, Palermo, Italy.,NeuroTeam Life and Science, Palermo, Italy
| | - Rosario Emanuele Bonaventura
- Department of Psychology, Educational Sciences and Human Movement, University of Palermo, Viale delle Scienze, Ed. 15, 90128, Palermo, Italy
| | - Daniela Smirni
- Department of Psychology, Educational Sciences and Human Movement, University of Palermo, Viale delle Scienze, Ed. 15, 90128, Palermo, Italy
| | - Massimiliano Oliveri
- Department of Psychology, Educational Sciences and Human Movement, University of Palermo, Viale delle Scienze, Ed. 15, 90128, Palermo, Italy. .,NeuroTeam Life and Science, Palermo, Italy.
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Magnani B, Musetti A, Frassinetti F. Neglect in temporal domain: Amelioration following a prismatic adaptation treatment and implications in everyday life. A single case study. Brain Cogn 2021; 150:105712. [PMID: 33773399 DOI: 10.1016/j.bandc.2021.105712] [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: 12/21/2020] [Revised: 02/24/2021] [Accepted: 02/25/2021] [Indexed: 11/18/2022]
Abstract
As in line bisection, in time bisection, neglect patients fail to process the first/left part of time representation (Mental-Time-Line-MTL) resulting in a rightward shift of the interval midpoint. A leftward shift of spatial attention after one session of prismatic-adaptation (PA) reduces this deficit. The impact on daily life of time deficit is little investigated in neglect. Here we study the time deficit and its ecological impact in an outpatient with neglect (LL) and the effects of a PA-treatment (ten sessions) on the deficit and its impact. Before and after PA-treatment, LL completed a: time-bisection-task assessing the MTL in the milliseconds-seconds range; lifespan-task assessing the MTL in the lifespan range; qualitative interview assessing the impact on daily routines. Patient's performance on the tasks was compared with the performance of non-neurological controls. Before PA-treatment, LL showed a rightward shift in the time-bisection-task and a compression of life events distribution in the lifespan-task. The feeling "to be forward in time" emerged in the interview. The PA-treatment reduced the deficits in the tasks and the feeling "to be forward in time" in the interview. PA-treatment is suggested as a powerful instrument for the reduction of time deficit and its ecological impact in neglect patients.
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Affiliation(s)
- Barbara Magnani
- Centro INforma-MEnte, Via Brigata Reggio 32, 42124 Reggio Emilia, Italy.
| | - Alessandro Musetti
- Department of Humanities, Social Sciences and Cultural Industries, University of Parma, Via Borgo Carissimi 10, 43121 Parma, Italy.
| | - Francesca Frassinetti
- Department of Psychology, University of Bologna, Viale Berti Pichat 5, 40127 Bologna, Italy; Maugeri Clinical Scientific Institutes - IRCCS of Castel Goffredo, Via Ospedale 36, 46042 Castel Goffredo, Mantova, Italy.
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