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Viscardi LH, Kleber FD, Custódio H, Costa AB, Brollo J. Akinetopsia (visual motion blindness) associated with brain metastases: a case report. Neurol Sci 2024:10.1007/s10072-024-07565-x. [PMID: 38691276 DOI: 10.1007/s10072-024-07565-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Accepted: 04/28/2024] [Indexed: 05/03/2024]
Abstract
Akinetopsia is a rare neurological syndrome characterized by an impaired perception of movement, often resulting from brain damage due to ischemia, epilepsy, or medication. It is also known as visual motion blindness, and patients with this condition are unable to perceive motion normally even with perfect visual acuity. This report aims to present a case of a patient in their late 40 s who developed akinetopsia and also an impairment in movement perception of objects without emitting sounds, after experiencing a late relapse of breast cancer with the occurrence of multiple brain metastases. The patient also experienced visual hallucinations, night terrors, and difficulty forming anterograde memory. Neuroimaging with MRI revealed severe brain damage, especially in the middle temporal area of the visual cortex. Akinetopsia is a rare phenomenon, and this is the first known case of its association with brain metastases.
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Affiliation(s)
- Lucas Henriques Viscardi
- Prejudice, Vulnerability and Psychosocial Processes Laboratory, Psychology Post-Graduation Program, Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Rio Grande do Sul, Ipiranga Av. 6681, Building 11 - 9th Floor - Room 933, Porto Alegre, CEP 90619-900, Brazil.
- Graduate Program in Medicine and Health Sciences, Pontifical Catholic University of Rio Grande do Sul (PUC-RS), Porto Alegre, Rio Grande do Sul, Brazil.
- Department of Health Sciences, School of Medicine, University of Caxias do Sul, Caxias do Sul, Rio Grande do Sul, Brazil.
| | - Fabricio Diniz Kleber
- Department of Health Sciences, School of Medicine, University of Caxias do Sul, Caxias do Sul, Rio Grande do Sul, Brazil
| | - Henrique Custódio
- Department of Health Sciences, School of Medicine, University of Caxias do Sul, Caxias do Sul, Rio Grande do Sul, Brazil
| | - Angelo Brandelli Costa
- Prejudice, Vulnerability and Psychosocial Processes Laboratory, Psychology Post-Graduation Program, Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Rio Grande do Sul, Ipiranga Av. 6681, Building 11 - 9th Floor - Room 933, Porto Alegre, CEP 90619-900, Brazil
- Graduate Program in Medicine and Health Sciences, Pontifical Catholic University of Rio Grande do Sul (PUC-RS), Porto Alegre, Rio Grande do Sul, Brazil
| | - Janaína Brollo
- Department of Health Sciences, School of Medicine, University of Caxias do Sul, Caxias do Sul, Rio Grande do Sul, Brazil
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Wang Y, Pines AR, Yoon JY, Frandsen SB, Miyawaki EK, Siddiqi SH. Focal Lesion in the Intraparietal Sulcus: A Case for Network-Dependent Release Hallucinations. J Neuropsychiatry Clin Neurosci 2023; 36:74-76. [PMID: 37727058 DOI: 10.1176/appi.neuropsych.20220145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/21/2023]
Affiliation(s)
- Yidi Wang
- Department of Medicine, Harvard Medical School, Boston (Wang); Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Boston (Pines, Siddiqi); Department of Neurology (Yoon, Miyawaki) and Center for Brain Circuit Therapeutics (Pines, Frandsen, Siddiqi), Mass General Brigham, Harvard Medical School, Boston; Department of Neurosurgery, Mount Sinai Hospital, New York (Yoon)
| | - Andrew R Pines
- Department of Medicine, Harvard Medical School, Boston (Wang); Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Boston (Pines, Siddiqi); Department of Neurology (Yoon, Miyawaki) and Center for Brain Circuit Therapeutics (Pines, Frandsen, Siddiqi), Mass General Brigham, Harvard Medical School, Boston; Department of Neurosurgery, Mount Sinai Hospital, New York (Yoon)
| | - Joseph Y Yoon
- Department of Medicine, Harvard Medical School, Boston (Wang); Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Boston (Pines, Siddiqi); Department of Neurology (Yoon, Miyawaki) and Center for Brain Circuit Therapeutics (Pines, Frandsen, Siddiqi), Mass General Brigham, Harvard Medical School, Boston; Department of Neurosurgery, Mount Sinai Hospital, New York (Yoon)
| | - Summer B Frandsen
- Department of Medicine, Harvard Medical School, Boston (Wang); Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Boston (Pines, Siddiqi); Department of Neurology (Yoon, Miyawaki) and Center for Brain Circuit Therapeutics (Pines, Frandsen, Siddiqi), Mass General Brigham, Harvard Medical School, Boston; Department of Neurosurgery, Mount Sinai Hospital, New York (Yoon)
| | - Edison K Miyawaki
- Department of Medicine, Harvard Medical School, Boston (Wang); Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Boston (Pines, Siddiqi); Department of Neurology (Yoon, Miyawaki) and Center for Brain Circuit Therapeutics (Pines, Frandsen, Siddiqi), Mass General Brigham, Harvard Medical School, Boston; Department of Neurosurgery, Mount Sinai Hospital, New York (Yoon)
| | - Shan H Siddiqi
- Department of Medicine, Harvard Medical School, Boston (Wang); Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Boston (Pines, Siddiqi); Department of Neurology (Yoon, Miyawaki) and Center for Brain Circuit Therapeutics (Pines, Frandsen, Siddiqi), Mass General Brigham, Harvard Medical School, Boston; Department of Neurosurgery, Mount Sinai Hospital, New York (Yoon)
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Wong-Kee-You AMB, Loveridge-Easther C, Mueller C, Simon N, Good WV. The impact of early exposure to general anesthesia on visual and neurocognitive development. Surv Ophthalmol 2022; 68:539-555. [PMID: 35970232 DOI: 10.1016/j.survophthal.2022.08.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 08/03/2022] [Accepted: 08/08/2022] [Indexed: 11/19/2022]
Abstract
Every year millions of children are exposed to general anesthesia while undergoing surgical and diagnostic procedures. In the field of ophthalmology, 44,000 children are exposed to general anesthesia annually for strabismus surgery alone. While it is clear that general anesthesia is necessary for sedation and pain minimization during surgical procedures, the possibility of neurotoxic impairments from its exposure is of concern. In animals there is strong evidence linking early anesthesia exposure to abnormal neural development. but in humans the effects of anesthesia are debated. In humans many aspects of vision develop within the first year of life, making the visual system vulnerable to early adverse experiences and potentially vulnerable to early exposure to general anesthesia. We attempt to address whether the visual system is affected by early postnatal exposure to general anesthesia. We first summarize key mechanisms that could account for the neurotoxic effects of general anesthesia on the developing brain and review existing literature on the effects of early anesthesia exposure on the visual system in both animals and humans and on neurocognitive development in humans. Finally, we conclude by proposing future directions for research that could address unanswered questions regarding the impact of general anesthesia on visual development.
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Affiliation(s)
| | - Cam Loveridge-Easther
- Smith-Kettlewell Eye Research Institute, San Francisco, CA, USA; University of Auckland, Auckland, New Zealand
| | - Claudia Mueller
- Sutter Health, San Francisco, CA, USA; Stanford Children's Health, Palo Alto, CA, USA
| | | | - William V Good
- Smith-Kettlewell Eye Research Institute, San Francisco, CA, USA.
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Nestvogel DB, Merino RM, Leon-Pinzon C, Schottdorf M, Lee C, Imig C, Brose N, Rhee JS. The Synaptic Vesicle Priming Protein CAPS-1 Shapes the Adaptation of Sensory Evoked Responses in Mouse Visual Cortex. Cell Rep 2021; 30:3261-3269.e4. [PMID: 32160535 DOI: 10.1016/j.celrep.2020.02.045] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 10/22/2019] [Accepted: 02/10/2020] [Indexed: 10/24/2022] Open
Abstract
Short-term plasticity gates information transfer across neuronal synapses and is thought to be involved in fundamental brain processes, such as cortical gain control and sensory adaptation. Neurons employ synaptic vesicle priming proteins of the CAPS and Munc13 families to shape short-term plasticity in vitro, but the relevance of this phenomenon for information processing in the intact brain is unknown. By combining sensory stimulation with in vivo patch-clamp recordings in anesthetized mice, we show that genetic deletion of CAPS-1 in thalamic neurons results in more rapid adaptation of sensory-evoked subthreshold responses in layer 4 neurons of the primary visual cortex. Optogenetic experiments in acute brain slices further reveal that the enhanced adaptation is caused by more pronounced short-term synaptic depression. Our data indicate that neurons engage CAPS-family priming proteins to shape short-term plasticity for optimal sensory information transfer between thalamic and cortical neurons in the intact brain in vivo.
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Affiliation(s)
- Dennis B Nestvogel
- Department of Molecular Neurobiology, Max Planck Institute of Experimental Medicine, 37075 Göttingen, Germany; International Max Planck Research School for Neuroscience at the University of Göttingen, 37075 Göttingen, Germany.
| | - Ricardo Martins Merino
- International Max Planck Research School for Neuroscience at the University of Göttingen, 37075 Göttingen, Germany; Theoretical Neurophysics Group, Max Planck Institute for Dynamics and Self Organization, 37077 Göttingen, Germany; Department of Molecular Biology of Neuronal Signals, Max Planck Institute of Experimental Medicine, 37075 Göttingen, Germany
| | - Carolina Leon-Pinzon
- Theoretical Neurophysics Group, Max Planck Institute for Dynamics and Self Organization, 37077 Göttingen, Germany; Department of Molecular Biology of Neuronal Signals, Max Planck Institute of Experimental Medicine, 37075 Göttingen, Germany; Campus Institute for Dynamics of Biological Networks, 37075 Göttingen, Germany
| | - Manuel Schottdorf
- Princeton Neuroscience Institute, Princeton University, Princeton, NJ 08544, USA
| | - ChoongKu Lee
- Department of Molecular Neurobiology, Max Planck Institute of Experimental Medicine, 37075 Göttingen, Germany
| | - Cordelia Imig
- Department of Molecular Neurobiology, Max Planck Institute of Experimental Medicine, 37075 Göttingen, Germany
| | - Nils Brose
- Department of Molecular Neurobiology, Max Planck Institute of Experimental Medicine, 37075 Göttingen, Germany
| | - Jeong-Seop Rhee
- Department of Molecular Neurobiology, Max Planck Institute of Experimental Medicine, 37075 Göttingen, Germany.
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Lussiez R, Chanauria N, Ouelhazi A, Molotchnikoff S. Effects of visual adaptation on orientation selectivity in cat secondary visual cortex. Eur J Neurosci 2020; 53:588-600. [PMID: 32916020 DOI: 10.1111/ejn.14967] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 08/20/2020] [Accepted: 09/02/2020] [Indexed: 11/28/2022]
Abstract
Neuron orientation selectivity, otherwise known as the ability to respond optimally to a preferred orientation, has been extensively described in both primary and secondary visual cortices. This orientation selectivity, conserved through all cortical layers of a given column, is the primary basis for cortical organization and functional network emergence. While this selectivity is programmed and acquired since critical period, it has always been believed that in a mature brain, neurons' inherent functional features could not be changed. However, a plurality of studies has investigated the mature brain plasticity in V1, by changing the cells' orientation selectivity with visual adaptation. Using electrophysiological data in both V1 and V2 areas, this study aims to investigate the effects of adaptation on simultaneously recorded cells in both areas. Visual adaptation had an enhanced effect on V2 units, as they exhibited greater tuning curve shifts and a more pronounced decrease of their OSI. Not only did adaptation have a different effect on V2 neurons, it also elicited a different response depending on the neuron's cortical depth. Indeed, in V2, cells in layers II-III were more affected by visual adaptation, while infragranular layer V units exhibited little to no effect at all.
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Azarmina M, Soheilian M, Azarmina H. Increased Latency of Visual Evoked Potentials in Healthy Women during Menstruation. J Ophthalmic Vis Res 2011; 6:183-6. [PMID: 22454733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2010] [Accepted: 05/04/2011] [Indexed: 10/29/2022] Open
Abstract
PURPOSE To evaluate the latency of visual evoked potentials (VEPs) in healthy women during and after menstruation. METHODS Pattern and flash VEPs were performed in 15 healthy women aged 18 to 25 years on the maximum bleeding day (luteal phase) and 7 days after the menstrual cycle (follicular phase). RESULTS Mean latency was 119.6 msec on the maximum bleeding day and 100.8 msec one week after menstruation on pattern VEP (P < 0.001). Corresponding values for flash VEP were 124.5 msec and 112.7 msec, respectively (P < 0.001). CONCLUSION Prolonged VEP latency on the maximum bleeding day indicates that high progesterone levels may have an inhibitory effect on optic nerve conduction velocity.
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