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Albini F, Pisoni A, Salvatore A, Calzolari E, Casati C, Marzoli SB, Falini A, Crespi SA, Godi C, Castellano A, Bolognini N, Vallar G. Aftereffects to Prism Exposure without Adaptation: A Single Case Study. Brain Sci 2022; 12:480. [PMID: 35448011 PMCID: PMC9028811 DOI: 10.3390/brainsci12040480] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 03/07/2022] [Accepted: 03/24/2022] [Indexed: 02/05/2023] Open
Abstract
Visuo-motor adaptation to optical prisms (Prism Adaptation, PA), displacing the visual scene laterally, is a behavioral method used for the experimental investigation of visuomotor plasticity, and, in clinical settings, for temporarily ameliorating and rehabilitating unilateral spatial neglect. This study investigated the building up of PA, and the presence of the typically occurring subsequent Aftereffects (AEs) in a brain-damaged patient (TMA), suffering from apperceptive agnosia and a right visual half-field defect, with bilateral atrophy of the parieto-occipital cortices, regions involved in PA and AEs. Base-Right prisms and control neutral lenses were used. PA was achieved by repeated pointing movements toward three types of stimuli: visual, auditory, and bimodal audio-visual. The presence and the magnitude of AEs were assessed by proprioceptive, visual, visuo-proprioceptive, and auditory-proprioceptive straight-ahead pointing tasks. The patient's brain connectivity was investigated by Diffusion Tensor Imaging (DTI). Unlike control participants, TMA did not show any adaptation to prism exposure, but her AEs were largely preserved. These findings indicate that AEs may occur even in the absence of PA, as indexed by the reduction of the pointing error, showing a dissociation between the classical measures of PA and AEs. In the PA process, error reduction, and its feedback, may be less central to the building up of AEs, than the sensorimotor pointing activity per se.
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Affiliation(s)
- Federica Albini
- Department of Psychology, University of Milano-Bicocca, 20126 Milano, Italy; (A.P.); (A.S.); (N.B.)
| | - Alberto Pisoni
- Department of Psychology, University of Milano-Bicocca, 20126 Milano, Italy; (A.P.); (A.S.); (N.B.)
| | - Anna Salvatore
- Department of Psychology, University of Milano-Bicocca, 20126 Milano, Italy; (A.P.); (A.S.); (N.B.)
| | - Elena Calzolari
- Neuro-Otology Unit, Division of Brain Sciences, Imperial College London, London SW7 2AZ, UK;
| | - Carlotta Casati
- Experimental Laboratory of Research in Clinical Neuropsychology, IRCCS Istituto Auxologico Italiano, 20155 Milano, Italy;
- Department of Neurorehabilitation Sciences, IRCCS Istituto Auxologico Italiano, 20155 Milano, Italy
| | - Stefania Bianchi Marzoli
- Laboratory of Neuro-Ophthalmology and Ocular Electrophysiology, IRCCS Istituto Auxologico Italiano, 20155 Milano, Italy;
| | - Andrea Falini
- Neuroradiology Unit and CERMAC, IRCCS San Raffaele Scientific Institute, Vita-Salute San Raffaele University, 20132 Milano, Italy; (A.F.); (S.A.C.); (C.G.); (A.C.)
| | - Sofia Allegra Crespi
- Neuroradiology Unit and CERMAC, IRCCS San Raffaele Scientific Institute, Vita-Salute San Raffaele University, 20132 Milano, Italy; (A.F.); (S.A.C.); (C.G.); (A.C.)
| | - Claudia Godi
- Neuroradiology Unit and CERMAC, IRCCS San Raffaele Scientific Institute, Vita-Salute San Raffaele University, 20132 Milano, Italy; (A.F.); (S.A.C.); (C.G.); (A.C.)
| | - Antonella Castellano
- Neuroradiology Unit and CERMAC, IRCCS San Raffaele Scientific Institute, Vita-Salute San Raffaele University, 20132 Milano, Italy; (A.F.); (S.A.C.); (C.G.); (A.C.)
| | - Nadia Bolognini
- Department of Psychology, University of Milano-Bicocca, 20126 Milano, Italy; (A.P.); (A.S.); (N.B.)
- Experimental Laboratory of Research in Clinical Neuropsychology, IRCCS Istituto Auxologico Italiano, 20155 Milano, Italy;
| | - Giuseppe Vallar
- Department of Psychology, University of Milano-Bicocca, 20126 Milano, Italy; (A.P.); (A.S.); (N.B.)
- Experimental Laboratory of Research in Clinical Neuropsychology, IRCCS Istituto Auxologico Italiano, 20155 Milano, Italy;
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Ambron E, Lingnau A, Lunardelli A, Pesavento V, Rumiati RI. The effect of goals and vision on movements: A case study of optic ataxia and limb apraxia. Brain Cogn 2015; 95:77-89. [DOI: 10.1016/j.bandc.2015.01.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Revised: 01/13/2015] [Accepted: 01/14/2015] [Indexed: 10/23/2022]
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Chechlacz M, Humphreys GW. The enigma of Bálint's syndrome: neural substrates and cognitive deficits. Front Hum Neurosci 2014; 8:123. [PMID: 24639641 PMCID: PMC3945799 DOI: 10.3389/fnhum.2014.00123] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Accepted: 02/19/2014] [Indexed: 01/06/2023] Open
Affiliation(s)
| | - Glyn W Humphreys
- Department of Experimental Psychology, University of Oxford Oxford, UK
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