The hippocampus as a visual area organized by space and time: A spatiotemporal similarity hypothesis.

The hippocampus as a visual area organized by space and time: A spatiotemporal similarity hypothesis. Vision Res. 2019 Nov 14;165:123-130 Authors: Turk-Browne NB Abstract The hippocampus is the canonical memory system in the brain and is not typically considered part of the visual system. Yet, it sits atop the ventral visual stream and has been implicated in certain aspects of vision. Here I review the place of the hippocampal memory system in vision science. After a brief primer on the local circuity, external connectivity, and computational functions of the hippocampus, I explore what can be learned from each field about the other. I first present four areas of vision science (scene perception, imagery, eye movements, attention) that challenge our current understanding of the hippocampus in terms of its role in episodic memory. In the reverse direction, I leverage this understanding to inform vision science in other ways, presenting a working hypothesis about a unique form of visual representation. This spatiotemporal similarity hypothesis states that the hippocampus represents objects according to whether they co-occur in space and/or time, and not whether they look alike, as elsewhere in the visual system. This tuning may reflect hippocampal mechanisms of pattern separation, relational binding, and statistical learning, allowing the hippocampus to generate visual expectations to facilitate search and recognition. PMID: 31734633 [PubMed - as supp...
Source: Vision Research - Category: Opthalmology Authors: Tags: Vision Res Source Type: research

Related Links:

Publication date: 1st Quarter 2020Source: Early Childhood Research Quarterly, Volume 50, Part 3Author(s):
Source: Early Childhood Research Quarterly - Category: Child Development Source Type: research
This study demonstrated that the insoluble fiber dissociated from edible mushroom byproducts has good potential for producing the edible films.
Source: Journal of Food Engineering - Category: Food Science Source Type: research
This study characterized wear behaviors of casein (3–5% w/w, 200 mM NaCl), κ-carrageenan (0.8–1.2% w/w, 100 mM NaCl), and whey protein gels (13% w/w, 50–150 mM NaCl) at room temperature (20 °C) under several normal forces (0.1–1.5 N). A kernel-based model was used to characterize hydrogel wear behavior by separating the deformation–wear process deformation-dominant, constant wear rate, and failure regions. Higher normal force and lower polymer concentration showed higher constant wear rates and lower durability. The kernel model was able to characterize hydrogel wear-deform...
Source: Journal of Food Engineering - Category: Food Science Source Type: research
Publication date: Available online 7 December 2019Source: LWTAuthor(s): Beatriz Quintanilla-Casas, Julen Bustamante, Francesc Guardiola, Diego Luís García-González, Sara Barbieri, Alessandra Bendini, Tullia Gallina Toschi, Stefania Vichi, Alba TresAbstractSensory quality, assessed following a standardized method, is one of the parameters defining the commercial category of virgin olive oil. Considering the difficulties linked to the organoleptic evaluation, specially the high number of samples to be assessed, setting up instrumental methods to support sensory panels becomes a need for the olive oil sec...
Source: LWT Food Science and Technology - Category: Food Science Source Type: research
This study enhanced our knowledge about yeast ecology during spontaneous fermentation of wine and demonstrated the influence of viticultural practices on yeast succession and wine quality.
Source: LWT Food Science and Technology - Category: Food Science Source Type: research
Publication date: Available online 7 December 2019Source: LWTAuthor(s): Yan-Zhen Zheng, Yu Zhou, Rui Guo, Zhong-Min Fu, Da-Fu ChenAbstractDifferences in the antioxidant activity of ferulic acid and its nine naturally occurring derivatives with the presence of different ester groups at the end of their carbon side chains were investigated using the density functional theory (DFT) method. The thermodynamics parameters related to the double H+/e− free radical scavenging mechanisms were calculated in the gas, benzene and water phases. In the investigated phases, ferulic acid with the COOH group or COO− group and it...
Source: LWT Food Science and Technology - Category: Food Science Source Type: research
Authors: Montazeri K, Bellmunt J Abstract Introduction: Since the approval of immune checkpoint inhibitors (ICIs), there has been continuing and significant progress in urothelial cancer (UC) treatment. However, only about one fifth of UC patients respond to ICI. Recently, erdafitinib was developed for treating locally advanced or metastatic UC (mUC) with FGFR3 or FGFR2 alterations, accounting for 15-20% of patients. Erdafitinib is the first targeted therapy ever approved for mUC.Areas covered: This review summarizes the preclinical and clinical data on erdafitinib for UC. PubMed search and relevant articles presen...
Source: Expert Review of Clinical Pharmacology - Category: Drugs & Pharmacology Tags: Expert Rev Clin Pharmacol Source Type: research
Vincent speaks with Félix Rey about his career and his work on solving structures of a variety of viruses and the insights learned about viral membrane fusion and antibody-mediated neutralization. Click arrow to play Download TWiV 577 (46 MB .mp3, 75 min) Subscribe (free): iTunes, Google Podcasts, RSS, email Become a patron of TWiV! Show notes at microbe.tv/twiv
Source: virology blog - Category: Virology Authors: Tags: This Week in Virology antibody neutralization cryo-EM dengue virus flavivirus fusion loop glycoprotein Semliki Forest virus tick borne encephalitis virus viral viral membrane fusion viruses X-ray crystallography zika virus Source Type: blogs
This study presents a device for efficient, low-cost and eye-friendly overnight disinfection of contact lenses by visible violet light as an alternative to disinfection with biocide-containing solutions. Bacterial solutions with one Pseudomonas and one Staphylococcus strain each were irradiated for up to 8 h in commercial transparent contact lens cases by the presented light-emitting diode (LED) device. Samples were taken at different intervals and distributed on agar plates. The surviving bacteria were determined by counting of colony-forming units and compared to the specific requirements of the stand-alone test for cont...
Source: Biomedizinische Technik/Biomedical Engineering - Category: Biomedical Engineering Tags: Biomed Tech (Berl) Source Type: research
Publication date: Available online 7 December 2019Source: Journal of Sound and VibrationAuthor(s): Feng Feng, Xiannan Meng, Qiang WangAbstractThe spectral acoustic analogy (AA) theory is used to study the acoustic generation by a pair of co-rotating vortices from the decomposition of wave packets. The use of a two-dimensional spectral AA formulation is based on the data obtained by conducting a direct simulation of unsteady compressible Navier-Stokes equations. By way of the spectral AA theory and convolution filtering operations, the role played by the wave packets of the vortices in the generation of the sound are thorou...
Source: Journal of Sound and Vibration - Category: Physics Source Type: research
More News: Brain | Learning | Neurology | Opthalmology | Science | Statistics | Universities & Medical Training