1
|
Latina V, De Introna M, Caligiuri C, Loviglio A, Florio R, La Regina F, Pignataro A, Ammassari-Teule M, Calissano P, Amadoro G. Immunotherapy with Cleavage-Specific 12A12mAb Reduces the Tau Cleavage in Visual Cortex and Improves Visuo-Spatial Recognition Memory in Tg2576 AD Mouse Model. Pharmaceutics 2023; 15:pharmaceutics15020509. [PMID: 36839831 PMCID: PMC9965010 DOI: 10.3390/pharmaceutics15020509] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/25/2023] [Accepted: 01/31/2023] [Indexed: 02/05/2023] Open
Abstract
Tau-targeted immunotherapy is a promising approach for treatment of Alzheimer's disease (AD). Beyond cognitive decline, AD features visual deficits consistent with the manifestation of Amyloid β-protein (Aβ) plaques and neurofibrillary tangles (NFT) in the eyes and higher visual centers, both in animal models and affected subjects. We reported that 12A12-a monoclonal cleavage-specific antibody (mAb) which in vivo neutralizes the neurotoxic, N-terminal 20-22 kDa tau fragment(s)-significantly reduces the retinal accumulation in Tg(HuAPP695Swe)2576 mice of both tau and APP/Aβ pathologies correlated with local inflammation and synaptic deterioration. Here, we report the occurrence of N-terminal tau cleavage in the primary visual cortex (V1 area) and the beneficial effect of 12A12mAb treatment on phenotype-associated visuo-spatial deficits in this AD animal model. We found out that non-invasive administration of 12 A12mAb markedly reduced the pathological accumulation of both truncated tau and Aβ in the V1 area, correlated to significant improvement in visual recognition memory performance along with local increase in two direct readouts of cortical synaptic plasticity, including the dendritic spine density and the expression level of activity-regulated cytoskeleton protein Arc/Arg3.1. Translation of these findings to clinical therapeutic interventions could offer an innovative tau-directed opportunity to delay or halt the visual impairments occurring during AD progression.
Collapse
Affiliation(s)
- Valentina Latina
- European Brain Research Institute (EBRI), Viale Regina Elena 295, 00161 Rome, Italy
| | - Margherita De Introna
- Institute of Translational Pharmacology (IFT), National Research Council (CNR), Via Fosso del Cavaliere 100, 00133 Rome, Italy
- IRCCS Santa Lucia Foundation (FSL), Centro di Ricerca Europeo sul Cervello (CERC), Via Fosso del Fiorano 64-65, 00143 Rome, Italy
| | - Chiara Caligiuri
- IRCCS Santa Lucia Foundation (FSL), Centro di Ricerca Europeo sul Cervello (CERC), Via Fosso del Fiorano 64-65, 00143 Rome, Italy
| | - Alessia Loviglio
- European Brain Research Institute (EBRI), Viale Regina Elena 295, 00161 Rome, Italy
| | - Rita Florio
- European Brain Research Institute (EBRI), Viale Regina Elena 295, 00161 Rome, Italy
| | - Federico La Regina
- European Brain Research Institute (EBRI), Viale Regina Elena 295, 00161 Rome, Italy
| | - Annabella Pignataro
- Institute of Translational Pharmacology (IFT), National Research Council (CNR), Via Fosso del Cavaliere 100, 00133 Rome, Italy
- IRCCS Santa Lucia Foundation (FSL), Centro di Ricerca Europeo sul Cervello (CERC), Via Fosso del Fiorano 64-65, 00143 Rome, Italy
| | - Martine Ammassari-Teule
- IRCCS Santa Lucia Foundation (FSL), Centro di Ricerca Europeo sul Cervello (CERC), Via Fosso del Fiorano 64-65, 00143 Rome, Italy
- Institute of Biochemistry and Cell Biology (IBBC), National Research Council (CNR), Via Ercole Ramarini 32, 00015 Rome, Italy
| | - Pietro Calissano
- European Brain Research Institute (EBRI), Viale Regina Elena 295, 00161 Rome, Italy
| | - Giuseppina Amadoro
- European Brain Research Institute (EBRI), Viale Regina Elena 295, 00161 Rome, Italy
- Institute of Translational Pharmacology (IFT), National Research Council (CNR), Via Fosso del Cavaliere 100, 00133 Rome, Italy
- Correspondence: ; Tel.: +39-06-49255252
| |
Collapse
|
2
|
Visual texture agnosia influences object identification in dementia with Lewy bodies and Alzheimer's disease. Cortex 2020; 129:23-32. [DOI: 10.1016/j.cortex.2020.04.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 03/02/2020] [Accepted: 04/01/2020] [Indexed: 11/19/2022]
|
3
|
Guseva E. Bridging Art Therapy and Neuroscience: Emotional Expression and Communication in an Individual With Late-Stage Alzheimer’s. ART THERAPY 2019. [DOI: 10.1080/07421656.2018.1524260] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
4
|
Oishi Y, Imamura T, Shimomura T, Suzuki K. Visual texture agnosia in dementia with Lewy bodies and Alzheimer's disease. Cortex 2018; 103:277-290. [DOI: 10.1016/j.cortex.2018.03.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Revised: 11/10/2017] [Accepted: 03/19/2018] [Indexed: 01/16/2023]
|
5
|
Visual dysfunction and its correlation with retinal changes in patients with Alzheimer's disease. Eye (Lond) 2017; 31:1034-1041. [PMID: 28282060 DOI: 10.1038/eye.2017.23] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Accepted: 01/24/2017] [Indexed: 12/23/2022] Open
Abstract
AimTo evaluate visual dysfunction and its correlation with structural changes in the retina in patients with Alzheimer's disease (AD).MethodsPatients with AD (n=24) and controls (n=24) underwent evaluation of visual acuity (VA), color vision (using the Farnsworth and L'Anthony desaturated (D) 15 color tests), and contrast sensitivity vision (CSV; using the Pelli-Robson chart and CSV-1000E test) to measure visual dysfunction. Structural measurements of the retinal nerve fiber layer (RNFL) and macular thickness were obtained using spectral domain-optical coherence tomography (SD-OCT).ResultsCSV at three of the four spatial frequencies was significantly worse in AD patients than in controls. Color vision was significantly affected in AD patients based on the Farnsworth color test. Compared with controls, macular thinning was detected in all sectors except the fovea, and the RNFL exhibited significant thinning in the superior quadrant and lower average thickness (P<0.05). CSV was the functional parameter most strongly correlated with structural measurements in patients with AD. Color vision was strongly associated with macular volume (r>0.70, P<0.05). VA at different levels of contrast was associated with macular and RNFL thickness.ConclusionsPatients with AD had visual dysfunction that correlated with structural changes evaluated by SD-OCT. Macular measurements may be reliable indicators of visual impairment in AD patients.
Collapse
|
6
|
Lenoble Q, Lek JJ, McKendrick AM. Visual object categorisation in people with glaucoma. Br J Ophthalmol 2016; 100:1585-1590. [DOI: 10.1136/bjophthalmol-2015-308289] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Revised: 06/14/2016] [Accepted: 07/18/2016] [Indexed: 11/03/2022]
|
7
|
Svetozarskiy SN, Kopishinskaya SV, Gustov AV, Radyuk MA, Antonova VA, Smetankin IG, Svetozarskiy SN, Kopishinskaya SV, Gustov AV, Radyuk MA, Antonova VA, Smetankin IG. [Ophthalmic manifestations of Huntington's disease]. Vestn Oftalmol 2015; 131:82-86. [PMID: 26845877 DOI: 10.17116/oftalma2015131582-86] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Huntington's disease (HD) is an autosomal dominant neurodegenerative disorder caused by a mutation in the huntingtin gene. The whole nervous system, including visual analyzer, is involved in the pathogenesis of the disease. Various ocular sings can be found in both preclinical and clinical stages of HD. Specific retinal damage, namely, abnormal proteins formation, photoreceptor degeneration and retinal remodeling, has been studied in animal models. Functional changes in occipital lobe activity and its atrophy as well as degeneration of visual pathways can already be present in the early stages of the disease. Oculomotor symptoms of HD include disturbed visual fixation, slower tracking eye movements and saccades, and suppressed vestibulo-ocular reflex. Visual perceptual disorders, such as visuospatial difficulties, problems of stimulus identification and motion perception, along with decreased contrast sensitivity, have also been described. The possibility of using certain ophthalmic parameters as biomarkers of HD is being discussed.
Collapse
Affiliation(s)
- S N Svetozarskiy
- Nizhny Novgorod State Medical Academy, Ministry of Health of the Russian Federation, 10/1 Minina Sq., Nizhny Novgorod, Russian Federation, 603005
| | - S V Kopishinskaya
- Nizhny Novgorod State Medical Academy, Ministry of Health of the Russian Federation, 10/1 Minina Sq., Nizhny Novgorod, Russian Federation, 603005
| | - A V Gustov
- Nizhny Novgorod State Medical Academy, Ministry of Health of the Russian Federation, 10/1 Minina Sq., Nizhny Novgorod, Russian Federation, 603005
| | - M A Radyuk
- Volgograd State Medical University, Ministry of Health of the Russian Federation, 1 Pavshikh Bortsov Sq., Volgograd, Russian Federation, 400131
| | - V A Antonova
- Nizhny Novgorod State Medical Academy, Ministry of Health of the Russian Federation, 10/1 Minina Sq., Nizhny Novgorod, Russian Federation, 603005
| | - I G Smetankin
- Nizhny Novgorod State Medical Academy, Ministry of Health of the Russian Federation, 10/1 Minina Sq., Nizhny Novgorod, Russian Federation, 603005
| | - S N Svetozarskiy
- Nizhny Novgorod State Medical Academy, Ministry of Health of the Russian Federation, 10/1 Minina Sq., Nizhny Novgorod, Russian Federation, 603005
| | - S V Kopishinskaya
- Nizhny Novgorod State Medical Academy, Ministry of Health of the Russian Federation, 10/1 Minina Sq., Nizhny Novgorod, Russian Federation, 603005
| | - A V Gustov
- Nizhny Novgorod State Medical Academy, Ministry of Health of the Russian Federation, 10/1 Minina Sq., Nizhny Novgorod, Russian Federation, 603005
| | - M A Radyuk
- Volgograd State Medical University, Ministry of Health of the Russian Federation, 1 Pavshikh Bortsov Sq., Volgograd, Russian Federation, 400131
| | - V A Antonova
- Nizhny Novgorod State Medical Academy, Ministry of Health of the Russian Federation, 10/1 Minina Sq., Nizhny Novgorod, Russian Federation, 603005
| | - I G Smetankin
- Nizhny Novgorod State Medical Academy, Ministry of Health of the Russian Federation, 10/1 Minina Sq., Nizhny Novgorod, Russian Federation, 603005
| |
Collapse
|
8
|
Armstrong R, Kergoat H. Oculo-visual changes and clinical considerations affecting older patients with dementia. Ophthalmic Physiol Opt 2015; 35:352-76. [DOI: 10.1111/opo.12220] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2014] [Accepted: 05/19/2015] [Indexed: 12/18/2022]
Affiliation(s)
| | - Hélène Kergoat
- École d'optométrie; Université de Montréal; Montreal Canada
| |
Collapse
|
9
|
Salobrar-Garcia E, de Hoz R, Rojas B, Ramirez AI, Salazar JJ, Yubero R, Gil P, Triviño A, Ramirez JM. Ophthalmologic Psychophysical Tests Support OCT Findings in Mild Alzheimer's Disease. J Ophthalmol 2015; 2015:736949. [PMID: 26106485 PMCID: PMC4461784 DOI: 10.1155/2015/736949] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2015] [Accepted: 05/20/2015] [Indexed: 11/18/2022] Open
Abstract
Purpose. To analyze in mild Alzheimer's disease (MAD) patients, GDS-4 (Reisberg Scale), whether or not some psychophysical tests (PTs) support OCT macular findings in the same group of MAD patients reported previously. Methods. Twenty-three MAD patients and 28 age-matched control subjects with mean Mini Mental State Examination of 23.3 and 28.2, respectively, with no ocular disease or systemic disorders affecting vision were included. Best-corrected visual acuity (VA), contrast sensitivity (CS) (3, 6, 12, and 18 cpds), color perception (CP), and perception digital test (PDT) were tested in one eye of each patient. Results. In comparison with the controls, MAD patients presented (i) a significant decrease in VA, PDT, and CS for all spatial frequencies analyzed, especially the higher ones, and (ii) a significant increase in unspecific errors on the blue axis (P < 0.05 in all instances). In MAD patients, a wide aROC curve was plotted in all PTs. Conclusions. In MAD, CS, VA, and the tritan axis in CP were impaired. The PTs with the greatest predictive value are the higher spatial frequencies in CS and tritan unspecific errors in CP. PT abnormalities are consistent with the structural findings reported in the same MAD patients using OCT.
Collapse
Affiliation(s)
- Elena Salobrar-Garcia
- Instituto de Investigaciones Oftalmológicas Ramón Castroviejo, Universidad Complutense de Madrid, Madrid, Spain
| | - Rosa de Hoz
- Instituto de Investigaciones Oftalmológicas Ramón Castroviejo, Universidad Complutense de Madrid, Madrid, Spain
- Facultad de Óptica, Universidad Complutense de Madrid, Madrid, Spain
| | - Blanca Rojas
- Instituto de Investigaciones Oftalmológicas Ramón Castroviejo, Universidad Complutense de Madrid, Madrid, Spain
- Facultad de Medicina, Universidad Complutense de Madrid, Madrid, Spain
| | - Ana I. Ramirez
- Instituto de Investigaciones Oftalmológicas Ramón Castroviejo, Universidad Complutense de Madrid, Madrid, Spain
- Facultad de Óptica, Universidad Complutense de Madrid, Madrid, Spain
| | - Juan J. Salazar
- Instituto de Investigaciones Oftalmológicas Ramón Castroviejo, Universidad Complutense de Madrid, Madrid, Spain
- Facultad de Óptica, Universidad Complutense de Madrid, Madrid, Spain
| | | | - Pedro Gil
- Facultad de Medicina, Universidad Complutense de Madrid, Madrid, Spain
- Hospital Clínico San Carlos, Madrid, Spain
| | - Alberto Triviño
- Instituto de Investigaciones Oftalmológicas Ramón Castroviejo, Universidad Complutense de Madrid, Madrid, Spain
- Facultad de Medicina, Universidad Complutense de Madrid, Madrid, Spain
| | - José M. Ramirez
- Instituto de Investigaciones Oftalmológicas Ramón Castroviejo, Universidad Complutense de Madrid, Madrid, Spain
- Facultad de Medicina, Universidad Complutense de Madrid, Madrid, Spain
| |
Collapse
|
10
|
At the interface of sensory and motor dysfunctions and Alzheimer's disease. Alzheimers Dement 2015; 11:70-98. [PMID: 25022540 PMCID: PMC4287457 DOI: 10.1016/j.jalz.2014.04.514] [Citation(s) in RCA: 360] [Impact Index Per Article: 40.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Revised: 03/13/2014] [Accepted: 04/09/2014] [Indexed: 11/21/2022]
Abstract
Recent evidence indicates that sensory and motor changes may precede the cognitive symptoms of Alzheimer's disease (AD) by several years and may signify increased risk of developing AD. Traditionally, sensory and motor dysfunctions in aging and AD have been studied separately. To ascertain the evidence supporting the relationship between age-related changes in sensory and motor systems and the development of AD and to facilitate communication between several disciplines, the National Institute on Aging held an exploratory workshop titled "Sensory and Motor Dysfunctions in Aging and AD." The scientific sessions of the workshop focused on age-related and neuropathologic changes in the olfactory, visual, auditory, and motor systems, followed by extensive discussion and hypothesis generation related to the possible links among sensory, cognitive, and motor domains in aging and AD. Based on the data presented and discussed at this workshop, it is clear that sensory and motor regions of the central nervous system are affected by AD pathology and that interventions targeting amelioration of sensory-motor deficits in AD may enhance patient function as AD progresses.
Collapse
|
11
|
Pouyet V, Giboreau A, Benattar L, Cuvelier G. Attractiveness and consumption of finger foods in elderly Alzheimer’s disease patients. Food Qual Prefer 2014. [DOI: 10.1016/j.foodqual.2013.12.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
12
|
Pereira MLF, Camargo MVZA, Aprahamian I, Forlenza OV. Eye movement analysis and cognitive processing: detecting indicators of conversion to Alzheimer's disease. Neuropsychiatr Dis Treat 2014; 10:1273-85. [PMID: 25031536 PMCID: PMC4096446 DOI: 10.2147/ndt.s55371] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
A great amount of research has been developed around the early cognitive impairments that best predict the onset of Alzheimer's disease (AD). Given that mild cognitive impairment (MCI) is no longer considered to be an intermediate state between normal aging and AD, new paths have been traced to acquire further knowledge about this condition and its subtypes, and to determine which of them have a higher risk of conversion to AD. It is now known that other deficits besides episodic and semantic memory impairments may be present in the early stages of AD, such as visuospatial and executive function deficits. Furthermore, recent investigations have proven that the hippocampus and the medial temporal lobe structures are not only involved in memory functioning, but also in visual processes. These early changes in memory, visual, and executive processes may also be detected with the study of eye movement patterns in pathological conditions like MCI and AD. In the present review, we attempt to explore the existing literature concerning these patterns of oculomotor changes and how these changes are related to the early signs of AD. In particular, we argue that deficits in visual short-term memory, specifically in iconic memory, attention processes, and inhibitory control, may be found through the analysis of eye movement patterns, and we discuss how they might help to predict the progression from MCI to AD. We add that the study of eye movement patterns in these conditions, in combination with neuroimaging techniques and appropriate neuropsychological tasks based on rigorous concepts derived from cognitive psychology, may highlight the early presence of cognitive impairments in the course of the disease.
Collapse
Affiliation(s)
- Marta Lg Freitas Pereira
- Laboratory of Neuroscience (LIM-27), Department and Institute of Psychiatry, Faculty of Medicine, University of São Paulo, São Paulo, SP, Brazil
| | - Marina von Zuben A Camargo
- Laboratory of Neuroscience (LIM-27), Department and Institute of Psychiatry, Faculty of Medicine, University of São Paulo, São Paulo, SP, Brazil
| | - Ivan Aprahamian
- Laboratory of Neuroscience (LIM-27), Department and Institute of Psychiatry, Faculty of Medicine, University of São Paulo, São Paulo, SP, Brazil
| | - Orestes V Forlenza
- Laboratory of Neuroscience (LIM-27), Department and Institute of Psychiatry, Faculty of Medicine, University of São Paulo, São Paulo, SP, Brazil
| |
Collapse
|
13
|
Lenoble Q, Boucart M, Rougier MB, Bordaberry P, Delord S. Does a yellow filter improve visual object categorization in normal aging? AGING NEUROPSYCHOLOGY AND COGNITION 2013; 21:325-45. [DOI: 10.1080/13825585.2013.823143] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
14
|
Velarde C, Perelstein E, Ressmann W, Duffy CJ. Independent deficits of visual word and motion processing in aging and early Alzheimer's disease. J Alzheimers Dis 2013; 31:613-21. [PMID: 22647256 DOI: 10.3233/jad-2012-112201] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
We tested whether visual processing impairments in aging and Alzheimer's disease (AD) reflect uniform posterior cortical decline, or independent disorders of visual processing for reading and navigation. Young and older normal controls were compared to early AD patients using psychophysical measures of visual word and motion processing. We find elevated perceptual thresholds for letters and word discrimination from young normal controls, to older normal controls, to early AD patients. Across subject groups, visual motion processing showed a similar pattern of increasing thresholds, with the greatest impact on radial pattern motion perception. Combined analyses show that letter, word, and motion processing impairments are independent of each other. Aging and AD may be accompanied by independent impairments of visual processing for reading and navigation. This suggests separate underlying disorders and highlights the need for comprehensive evaluations to detect early deficits.
Collapse
Affiliation(s)
- Carla Velarde
- Department of Neurology, University of Rochester Medical Center, Rochester, NY 14642-0673, USA
| | | | | | | |
Collapse
|
15
|
Toner CK, Reese BE, Neargarder S, Riedel TM, Gilmore GC, Cronin-Golomb A. Vision-fair neuropsychological assessment in normal aging, Parkinson's disease and Alzheimer's disease. Psychol Aging 2012; 27:785-90. [PMID: 22201330 PMCID: PMC3360123 DOI: 10.1037/a0026368] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
We examined performance of healthy older and younger adults and individuals with Alzheimer's disease (AD) and Parkinson's disease (PD) on digit cancellation, a task putatively sensitive to cognitive impairment, but possibly affected by visual impairment, particularly in contrast sensitivity. Critical contrast thresholds were established to create custom stimulus arrays that were proximally matched across individuals. Age- and PD-related differences in search were fully accounted for by the sensory deficit. Increased contrast benefited AD patients, but could not override cognitive impairment. We conclude that visually fair neuropsychological testing can effectively compensate for normal age- and PD-related visual changes that affect cognitive performance.
Collapse
Affiliation(s)
| | | | - Sandy Neargarder
- Department of Psychology, Boston University
- Department of Psychology, Bridgewater State University
| | - Tatiana M. Riedel
- Mandel School of Applied Social Sciences, Case Western Reserve University
| | - Grover C. Gilmore
- Mandel School of Applied Social Sciences, Case Western Reserve University
| | | |
Collapse
|
16
|
Seichepine DR, Neargarder S, McCallum ME, Tabor K, Riedel TM, Gilmore GC, Cronin-Golomb A. Luminance affects age-related deficits in object detection: implications for computerized psychological assessments. Psychol Aging 2012; 27:522-528. [PMID: 22059716 PMCID: PMC3744819 DOI: 10.1037/a0025576] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
As psychological instruments are converted for administration on computers, differences in luminance and contrast of these displays may affect performance. Specifically, high-luminance assessments may mask age-group differences that are apparent under lower luminance conditions. We examined the effects of luminance and contrast on object detection using computerized and naturalistic assessments. Younger and older adults displayed more differences in performance across differing contrast levels in conditions that were matched for luminance, despite the conditions appearing perceptually different. These findings indicate that computerized assessments should be created with luminance levels that are similar to those of the tasks they purport to simulate in order to enhance their validity.
Collapse
Affiliation(s)
| | | | | | | | - Tatiana M Riedel
- Mandel School of Applied Social Sciences, Case Western Reserve University
| | - Grover C Gilmore
- Mandel School of Applied Social Sciences, Case Western Reserve University
| | | |
Collapse
|
17
|
Laudate TM, Neargarder S, Dunne TE, Sullivan KD, Joshi P, Gilmore GC, Riedel TM, Cronin-Golomb A. Bingo! Externally supported performance intervention for deficient visual search in normal aging, Parkinson's disease, and Alzheimer's disease. NEUROPSYCHOLOGY, DEVELOPMENT, AND COGNITION. SECTION B, AGING, NEUROPSYCHOLOGY AND COGNITION 2011; 19:102-21. [PMID: 22066941 PMCID: PMC3275685 DOI: 10.1080/13825585.2011.621930] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Abstract
External support may improve task performance regardless of an individual's ability to compensate for cognitive deficits through internally generated mechanisms. We investigated if performance of a complex, familiar visual search task (the game of bingo) could be enhanced in groups with suboptimal vision by providing external support through manipulation of task stimuli. Participants were 19 younger adults, 14 individuals with probable Alzheimer's disease (AD), 13 AD-matched healthy adults, 17 non-demented individuals with Parkinson's disease (PD), and 20 PD-matched healthy adults. We varied stimulus contrast, size, and visual complexity during game play. The externally supported performance interventions of increased stimulus size and decreased complexity resulted in improvements in performance by all groups. AD also obtained benefit from increasing contrast, presumably by compensating for their contrast sensitivity deficit. The general finding of improved performance across healthy and afflicted groups suggests the value of visual support as an easy-to-apply intervention to enhance cognitive performance.
Collapse
Affiliation(s)
| | - Sandy Neargarder
- Department of Psychology, Boston University, Boston, MA, 02215 USA
- Department of Psychology, Bridgewater State University, Bridgewater, MA, 02325 USA
| | - Tracy E. Dunne
- Department of Psychology, Boston University, Boston, MA, 02215 USA
| | | | - Pallavi Joshi
- Department of Psychology, Boston University, Boston, MA, 02215 USA
| | - Grover C. Gilmore
- Department of Psychology, Case Western Reserve University, Cleveland, OH, 44106 USA
| | - Tatiana M. Riedel
- Department of Psychology, Case Western Reserve University, Cleveland, OH, 44106 USA
| | | |
Collapse
|
18
|
Collier L, McPherson K, Ellis-Hill C, Staal J, Bucks R. Multisensory stimulation to improve functional performance in moderate to severe dementia--interim results. Am J Alzheimers Dis Other Demen 2010; 25:698-703. [PMID: 21131677 PMCID: PMC10845527 DOI: 10.1177/1533317510387582] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2024]
Abstract
Dementia is a growing problem worldwide and interventions to effectively manage and promote function are urgently required. Multisensory environments (MSEs) have been used extensively with people with dementia; however, no studies have been conducted to explore the efficacy of sensory stimulation on functional performance. This study explores to what extent multisensory stimulation influences functional performance in people with moderate-to-severe dementia using an MSE compared with a control activity. Thirty participants with moderate-to-severe dementia were recruited from the South of England. Following baseline assessment and design of a bespoke intervention, each participant attended their allocated intervention (3 x week, for 4 weeks). Assessments were carried out pre and postsession using the Assessment of Motor and Process Skills. Results indicate significant improvement in functional performance in both the MSE and the control activity. Findings support the use of MSEs as a strategy for enhancing functional performance in dementia.
Collapse
|
19
|
Parks RW, Thiyagesh SN, Farrow TFD, Ingram L, Wilkinson K, Hunter MD, Wilkinson ID, Young C, Woodruff PWR. Performance on the Clock Drawing Task Correlates with fMRI Response to a Visuospatial Task in Alzheimer's Disease. Int J Neurosci 2010; 120:335-43. [DOI: 10.3109/00207450903320339] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
20
|
Learning to perceive structure from motion and neural plasticity in patients with Alzheimer's disease. Neuropsychologia 2010; 48:1464-71. [DOI: 10.1016/j.neuropsychologia.2010.01.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2009] [Revised: 01/21/2010] [Accepted: 01/21/2010] [Indexed: 11/19/2022]
|
21
|
Adlington RL, Laws KR, Gale TM. Visual processing in Alzheimer's disease: Surface detail and colour fail to aid object identification. Neuropsychologia 2009; 47:2574-83. [DOI: 10.1016/j.neuropsychologia.2009.05.004] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2009] [Revised: 05/05/2009] [Accepted: 05/10/2009] [Indexed: 10/20/2022]
|
22
|
Bublak P, Redel P, Sorg C, Kurz A, Förstl H, Müller HJ, Schneider WX, Finke K. Staged decline of visual processing capacity in mild cognitive impairment and Alzheimer's disease. Neurobiol Aging 2009; 32:1219-30. [PMID: 19713001 DOI: 10.1016/j.neurobiolaging.2009.07.012] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2009] [Revised: 06/14/2009] [Accepted: 07/27/2009] [Indexed: 10/20/2022]
Abstract
Visual information intake was assessed with a whole-report task in patients with probable Alzheimer's disease (AD), mild cognitive impairment (MCI), and healthy elderly control subjects. Based on a theory of visual attention (TVA), four parameters were derived characterising different aspects of visual processing capacity: perceptual threshold, iconic memory, processing speed, and visual short-term memory (VSTM) storage capacity. Results indicated increased perceptual thresholds in MCI, and an additional decline in processing speed and VSTM storage capacity in AD. Cholinomimetic medication had beneficial effects on processing speed in AD patients. Perceptual thresholds were associated with disease duration, but not with cognitive measures, while the reverse was true for speed and VSTM measures. These results reveal a staged pattern of deficits affecting pre-attentive visual processing in MCI, and attentive processing in AD. It is compatible with the amyloid cascade hypothesis and suggests that impaired visual processing is a pathological feature present already at the MCI stage and might represent a distinct marker of upcoming AD independently from memory deficits.
Collapse
Affiliation(s)
- Peter Bublak
- Neuropsychology Unit, Klinik für Neurologie, Friedrich-Schiller-Universität Jena, Erlanger Allee 101, Jena, Germany.
| | | | | | | | | | | | | | | |
Collapse
|
23
|
강동형, 김남균. Perception of Movement and Interhemispheric Interaction in Alzheimer's Disease. ACTA ACUST UNITED AC 2008. [DOI: 10.15842/kjcp.2008.27.4.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
|
24
|
Davidsdottir S, Wagenaar R, Young D, Cronin-Golomb A. Impact of optic flow perception and egocentric coordinates on veering in Parkinson's disease. Brain 2008; 131:2882-93. [PMID: 18957454 DOI: 10.1093/brain/awn237] [Citation(s) in RCA: 97] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Spatial navigation is a complex process requiring integration of visuoperceptual information. The present study examined how visuospatial function relates to navigational veering in Parkinson's disease, a movement disorder in which visuospatial cognition is affected by the degeneration of the basal ganglia and resulting dysfunction of the parietal lobes. We hypothesized that patients whose initial motor symptoms start on the left versus right side of the body (LPD, predominant right-hemisphere dysfunction; RPD, predominant left-hemisphere dysfunction) would display distinct patterns of navigational veering associated with the groups' dissimilar visuospatial profiles. Of particular interest was to examine the association of navigational veering (lateral deviation along the medio-lateral axis) with perception of egocentric coordinates and of radial optic flow patterns, both of which are mediated by the parietal lobes. Thirty-one non-demented Parkinson's disease patients (16 LPD, 15 RPD) and 18 healthy control (HC) adults received visuospatial tests, of whom 23 Parkinson's disease patients and 17 HC also underwent veering assessment. The participants were examined on three visual-feedback navigation conditions: none (eyes closed), natural, and optic flow supplied by a virtual-reality headset. All groups veered to the left when walking with eyes closed, women with Parkinson's disease more so than the other participants. On the navigation assessments with visual feedback, only LPD patients deviated right of centre. On tests of visuospatial function, the perceived midline was shifted rightward in LPD (men and women), increasingly so with the addition of visual input. In contrast, men with RPD showed leftward deviation. RPD patients and HC perceived optic flow in the left hemifield as faster than in the right hemifield, with a trend for the opposite pattern for LPD. Navigational veering in LPD was associated with deviation of the perceived egocentric midline and not with perception of optic flow speed asymmetries, and in RPD it was also associated with visual dependence, though in fact LPD subjects were more visually dependent than those with RPD. Our results indicate that (i) parietal-mediated perception of visual space is affected in Parkinson's disease, with both side of motor symptom onset and gender affecting spatial performance, and (ii) visual input affects veering.
Collapse
|
25
|
The picture superiority effect in patients with Alzheimer's disease and mild cognitive impairment. Neuropsychologia 2008; 47:595-8. [PMID: 18992266 DOI: 10.1016/j.neuropsychologia.2008.10.010] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2008] [Revised: 10/08/2008] [Accepted: 10/09/2008] [Indexed: 11/20/2022]
Abstract
The fact that pictures are better remembered than words has been reported in the literature for over 30 years. While this picture superiority effect has been consistently found in healthy young and older adults, no study has directly evaluated the presence of the effect in patients with Alzheimer's disease (AD) or mild cognitive impairment (MCI). Clinical observations have indicated that pictures enhance memory in these patients, suggesting that the picture superiority effect may be intact. However, several studies have reported visual processing impairments in AD and MCI patients which might diminish the picture superiority effect. Using a recognition memory paradigm, we tested memory for pictures versus words in these patients. The results showed that the picture superiority effect is intact, and that these patients showed a similar benefit to healthy controls from studying pictures compared to words. The findings are discussed in terms of visual processing and possible clinical importance.
Collapse
|
26
|
O'Donnell BF, Blekher TM, Weaver M, White KM, Marshall J, Beristain X, Stout JC, Gray J, Wojcieszek JM, Foroud TM. Visual perception in prediagnostic and early stage Huntington's disease. J Int Neuropsychol Soc 2008; 14:446-53. [PMID: 18419843 PMCID: PMC2643869 DOI: 10.1017/s1355617708080405] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2007] [Revised: 12/14/2007] [Accepted: 12/18/2007] [Indexed: 11/06/2022]
Abstract
Disturbances of visual perception frequently accompany neurodegenerative disorders but have been little studied in Huntington's disease (HD) gene carriers. We used psychophysical tests to assess visual perception among individuals in the prediagnostic and early stages of HD. The sample comprised four groups, which included 201 nongene carriers (NG), 32 prediagnostic gene carriers with minimal neurological abnormalities (PD1); 20 prediagnostic gene carriers with moderate neurological abnormalities (PD2), and 36 gene carriers with diagnosed HD. Contrast sensitivity for stationary and moving sinusoidal gratings, and tests of form and motion discrimination, were used to probe different visual pathways. Patients with HD showed impaired contrast sensitivity for moving gratings. For one of the three contrast sensitivity tests, the prediagnostic gene carriers with greater neurological abnormality (PD2) also had impaired performance as compared with NG. These findings suggest that early stage HD disrupts visual functions associated with the magnocellular pathway. However, these changes are only observed in individuals diagnosed with HD or who are in the more symptomatic stages of prediagnostic HD.
Collapse
Affiliation(s)
- Brian F O'Donnell
- Department of Psychological and Brain Sciences, Indiana University, Bloomington, Indiana 47405, USA.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
27
|
Abstract
Deficits in visual cognition in Alzheimer's disease (AD) arise from neuropathological changes in higher-order association areas of the cortex and from defective input from lower-level visual processing areas. We investigated whether enhanced signal strength may lead to improvement of visual cognition in AD. We tested 35 individuals with probable AD, 35 age-matched elderly control (EC) and 58 young control (YC) adults on letter identification, word reading, picture naming, discrimination of unfamiliar faces, and pattern completion. The contrast sensitivity step-difference across an independent sample of AD and EC groups was used in calculating an image filter, from which we produced stimulus-strength conditions of low-degraded, medium-normal, and high-enhanced. Using this filter we created a hypothetical proximal-strength equivalence between AD at medium strength and EC at low strength, and between AD at high strength and EC at medium strength. For letter identification, word reading, picture naming, and face discrimination, medium strength elicited AD accuracy levels and reaction times that were similar to those of EC at low strength. On picture naming, increased strength reduced perceptual-type errors for EC and AD and random errors for AD. For word reading, high strength elicited AD accuracy levels and reaction times that were equivalent to those of EC at medium strength. We saw no effect of signal-strength manipulation on performance of pattern completion, possibly owing to the complex cognitive demands of that task or to the inadequacy of the filter for its images. The results indicate that putative AD-EC differences in cognition directly reflect contrast sensitivity differences between the groups. Enhancement of stimulus strength can ameliorate vision-based deficits and lead to improvement in some aspects of cognitive performance. These results suggest new non-pharmacological avenues to explore in the attempt to improve cognition in elderly adults and especially in individuals with AD.
Collapse
|
28
|
Amick MM, Grace J, Ott BR. Visual and cognitive predictors of driving safety in Parkinson's disease patients. Arch Clin Neuropsychol 2007; 22:957-67. [PMID: 17851032 PMCID: PMC3555123 DOI: 10.1016/j.acn.2007.07.004] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2007] [Revised: 07/18/2007] [Accepted: 07/24/2007] [Indexed: 11/29/2022] Open
Abstract
This study assessed the clinical utility of contrast sensitivity (CS) relative to attention, executive function, and visuospatial abilities for predicting driving safety in participants with Parkinson's disease (PD). Twenty-five, non-demented PD patients completed measures of contrast sensitivity, visuospatial skills, executive functions, and attention. All PD participants also underwent a formal on-road driving evaluation. Of the 25 participants, 11 received a marginal or unsafe rating on the road test. Poorer driving performance was associated with worse performance on measures of CS, visuospatial constructions, set shifting, and attention. While impaired driving was associated with a range of cognitive and visual abilities, only a composite measure of executive functioning and visuospatial abilities, and not CS or attentional skills, predicted driving performance. These findings suggest that neuropsychological tests, which are multifactorial in nature and require visual perception and visual spatial judgments are the most useful screening measures for hazardous driving in PD patients.
Collapse
Affiliation(s)
- M M Amick
- Memorial Hospital of RI, Department of Medical Rehabilitation, Pawtucket, RI 02860, USA.
| | | | | |
Collapse
|
29
|
Cronin-Golomb A, Panizzon MS, Lyons MJ, Franz CE, Grant MD, Jacobson KC, Eisen SA, Laudate TM, Kremen WS. Genetic influence on contrast sensitivity in middle-aged male twins. Vision Res 2007; 47:2179-86. [PMID: 17604073 PMCID: PMC2020833 DOI: 10.1016/j.visres.2007.04.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2006] [Revised: 04/03/2007] [Accepted: 04/04/2007] [Indexed: 10/23/2022]
Abstract
Contrast sensitivity is strongly associated with daily functioning among older adults, but the genetic and environmental contributions to this ability are unknown. Using the classical twin method, we addressed this issue by examining contrast sensitivity at five spatial frequencies (1.5-18 cycles per degree) in 718 middle-aged male twins from the Vietnam Era Twin Study of Aging (VETSA). Heritability estimates were modest (14-38%), whereas individual-specific environmental influences accounted for 62-86% of the variance. Identifying the types of individual-specific events that impact contrast sensitivity may suggest interventions to modulate this ability and thereby improve overall quality of life as adults age.
Collapse
Affiliation(s)
- Alice Cronin-Golomb
- Department of Psychology, Boston University, 648 Beacon St., 2nd floor, Boston, MA 02215, USA.
| | | | | | | | | | | | | | | | | |
Collapse
|
30
|
Neargarder SA, Cronin-Golomb A. Characteristics of visual target influence detection of change in naturalistic scenes in Alzheimer disease. Cogn Behav Neurol 2005; 18:151-8. [PMID: 16175018 DOI: 10.1097/01.wnn.0000178229.39068.9b] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To examine the role of visual characteristics of the target on Alzheimer disease (AD) patients' ability to detect change in naturalistic scenes. BACKGROUND AD patients exhibit impairments in detecting changes in the visual environment. Unexamined to date is the influence of visual characteristics of the target on this ability. METHOD The change-detection experiment used 36 pairs of photographs of naturalistic scenes. Each pair was identical except for one target that differed in color, gray-scale, or presence/absence. Scene complexity also varied. The task was to locate the target; reaction times (RTs) were recorded. RESULTS RTs increased as scene complexity increased. AD patients exhibited slower RTs than elderly adult controls (ECs), who were slower than young adults (N = 14/group). AD patients were unable to locate the target in 33.3% to 61.9% of the complex gray-scale trials, compared with 4.8% to 38.1% in the EC group. Performance on color and presence/absence trials was relatively good for all groups. CONCLUSIONS The ability of AD patients to detect change in simulated real-world scenes is influenced by visual characteristics of the target and by scene complexity.
Collapse
Affiliation(s)
- Sandy A Neargarder
- Department of Psychology, Bridgewater State College, Bridgewater, Massachusetts 02325, USA.
| | | |
Collapse
|