Results 21 to 30 of about 6,807 (176)

Early life stress and disruption of the ageing trajectory in female rats: Insights into the origins and mechanisms underlying the risk of hypertension. [PDF]

Exp Physiol
Abstract Menopause increases the risk of hypertension in women, yet the factors contributing to this important change remain unclear. Because early life stress has persistent and sex‐specific consequences on health, we hypothesized that ageing reveals the latent effects of neonatal maternal separation (NMS) on cardiovascular homeostasis in female rats.
Ambrozio-Marques D, Guay LM, Koogler AA, Ostrowski TD, de Souza AMA, Sandberg K, Kinkead R.   +6 more
europepmc   +2 more sources

The Importance of Spatial Visual Scene Parameters in Predicting Optimal Cone Sensitivities in Routinely Trichromatic Frugivorous Old-World Primates

Frontiers in Computational Neuroscience, 2018
Computational models that predict the spectral sensitivities of primate cone photoreceptors have focussed only on the spectral, not spatial, dimensions.
Tristan Matthews, Daniel Osorio, Andrea Cavallaro, Lars Chittka, Lars Chittka   +4 more
doaj   +1 more source

Features of the Interaction of Cognitive Functions with the Work of the Magnocellular and Parvocellular Systems in Patients with Schizophrenia and Endogenous Depression [PDF]

Клиническая и специальная психология, 2021
The article presents a study devoted to the study of cognitive dysfunctions in patients with schizophrenia and endogenous depression in their relationship with the functioning of the magnocellular and parvocellular systems. Mismatch in the work of neural
Mukhitova Yu.V., Isaeva E.R., Tregubenko I.A., Shoshina I.I., Khanko A.V., Limankin O.V.   +5 more
doaj   +1 more source

Psychophysical assessment of magno- and parvocellular function in schizophrenia [PDF]

Visual Neuroscience, 2006
Recently developed psychophysical techniques permit the biasing of the processing of the stimulus by early visual channels so that responses reflect characteristics of either magno- or parvocellular pathways (Pokorny & Smith, 1997). We used such techniques to test psychophysically whether the global magnocellular dysfunction reported in ...
Delord, Sandrine, Ducato, Maria Giovanna, Pins, Delphine, Devinck, Frédéric, Thomas, Pierre, Boucart, Muriel, Knoblauch, Kenneth   +6 more
openaire   +4 more sources

Chromatic-achromatic perimetry in four clinic cases: Glaucoma and diabetes

Indian Journal of Ophthalmology, 2015
Background: Some diseases that affect the visual system may show loss of chromatic-achromatic sensitivity before obvious physical signs appear in the usual examination of the eye′s posterior segment.
Inmaculada Cabezos, Maria José Luque, Dolores de Fez, Vicenta Moncho, Vicente Camps   +4 more
doaj   +1 more source

Psychophysical evidence for impaired Magno, Parvo, and Konio-cellular pathways in dyslexic children

Journal of Ophthalmic & Vision Research, 2015
Purpose: Dyslexia is one of the most common learning disabilities affecting millions of people worldwide. Although exact causes of dyslexia are not well-known, a deficit in the magnocellular pathway may play a role.
Khazar Ahmadi, Hamid Reza Pouretemad, Jahangir Esfandiari, Ahmad Yoonessi, Ali Yoonessi   +4 more
doaj   +1 more source

The orexigenic effect of ghrelin is mediated through central activation of the endogenous cannabinoid system. [PDF]

PLoS ONE, 2008
Ghrelin and cannabinoids stimulate appetite, this effect possibly being mediated by the activation of hypothalamic AMP-activated protein kinase (AMPK), a key enzyme in appetite and metabolism regulation.
Blerina Kola, Imre Farkas, Mirjam Christ-Crain, Gábor Wittmann, Francesca Lolli, Faisal Amin, Judith Harvey-White, Zsolt Liposits, George Kunos, Ashley B Grossman, Csaba Fekete, Márta Korbonits   +11 more
doaj   +1 more source

Response variability of marmoset parvocellular neurons

The Journal of Physiology, 2007
This study concerns the properties of neurons carrying signals for colour vision in primates. We investigated the variability of responses of individual parvocellular lateral geniculate neurons of dichromatic and trichromatic marmosets to drifting sinusoidal luminance and chromatic gratings.
J D, Victor, E M, Blessing, J D, Forte, P, Buzás, P R, Martin   +4 more
openaire   +3 more sources

Analysis of Parvocellular and Magnocellular Visual Pathways in Human Retina [PDF]

The Journal of Neuroscience, 2020
Two main subcortical pathways serving conscious visual perception are the midget-parvocellular (P), and the parasol-magnocellular (M) pathways. It is generally accepted that the P pathway serves red-green color vision, but the relative contribution of P and M pathways to spatial vision is a long-standing and unresolved issue.
Rania A, Masri, Ulrike, Grünert, Paul R, Martin   +2 more
openaire   +2 more sources

"Slight" of hand: the processing of visually degraded gestures with speech. [PDF]

PLoS ONE, 2012
Co-speech hand gestures influence language comprehension. The present experiment explored what part of the visual processing system is optimized for processing these gestures.
Spencer D Kelly, Bruce C Hansen, David T Clark   +2 more
doaj   +1 more source