• apparatus
  • Braid however criticizes Bertrand for explaining the magnetic phenomenon as caused by a mental state, the power of imagination, whereas he explains them as being due to a physiological cause, the tiredness of the nerve centers related to a paralysis of the ocular apparatus. (wikipedia.org)
  • 2. Apparatus according to claim 1 wherein said apparatus further comprises a moving artificial pupil disposed between said light source and said observer, whereby said observer will experience the Perkinje phenomenon. (patentgenius.com)
  • 5. Apparatus according to claim 1 wherein said apparatus further comprises a means for selectively interrupting light reaching said observer from said light source, whereby said observer will experience the flicker effect of the blue fieldentoptic phenomenon. (patentgenius.com)
  • The act of crying has been defined as "a complex secretomotor phenomenon characterized by the shedding of tears from the lacrimal apparatus, without any irritation of the ocular structures", instead, giving a relief which protects from conjunctivitis. (wikipedia.org)
  • Vision
  • The work of the Salpêtrière School also presented a new vision of the phenomenon of hysteria. (wikipedia.org)
  • An ocular condition in which one eye uses the sensitive centre of the RETINA , while the other uses a more peripheral part, thereby conferring a crude form of binocular vision with a persistent AMBLYOPIA in the deviating eye that is harder to correct than amblyopia in the absence of ARC . (thefreedictionary.com)
  • Species with tetrachromatic color vision may have an unknown physiological advantage over rival species. (wikipedia.org)
  • cerebral
  • In 1875, Richard Caton (1842-1926), a physician practicing in Liverpool , presented his findings about electrical phenomena of the exposed cerebral hemispheres of rabbits and monkeys in the British Medical Journal . (wikipedia.org)
  • This phenomenon is frequently associated with damage to the right cerebral hemisphere resulting in severe sensory deficits that are observed on the contralesional (left) side of the body. (wikipedia.org)
  • movements
  • Note that this is not the same description of ocular torsion as rotation around the line of sight: whereas movements that start or end at the primary position can indeed be performed without any rotation about the line of sight, this is not the case for arbitrary movements. (wikipedia.org)
  • Nystagmus is not to be confused with other superficially similar-appearing disorders of eye movements (saccadic oscillations) such as opsoclonus or ocular flutter that are composed purely of fast-phase (saccadic) eye movements, while nystagmus is characterised by the combination of a smooth pursuit, which usually acts to take the eye off the point of regard, interspersed with the saccadic movement that serves to bring the eye back on target. (wikipedia.org)
  • studies
  • Past studies have addressed issues in the respiratory, ocular and cardiovascular systems. (medmeeting.org)
  • Here, we review the existing data-from historical and contemporary studies that have aimed to nullify or minimize eye motion-on the perceptual and physiological consequences of perfect versus imperfect fixation. (royalsocietypublishing.org)
  • This phenomenon is supported by studies showing that if two stimuli are simultaneously applied to both sides of the body, the patient [with their eyes closed] will ignore the stimulus that is applied to the affected side and report a tactile sensation from the unaffected side alone. (wikipedia.org)
  • effect
  • It was originally publicized for its IOP lowering effect via a topical ocular application, but certain problems were encountered in this approach. (fiteyes.com)
  • This phenomenon, now referred to as chromostereopsis, or the stereoptic effect, explains the visual science behind this color depth effect, and has many implications for art, media, evolution, as well as our daily lives in how we perceive colors and objects. (wikipedia.org)
  • Although Goethe did not propose any scientific reasoning behind his observations, in the late 1860s Bruecke and Donders first suggested that the chromostereoptic effect was due to accommodative awareness, given that ocular optics are not achromatic and red objects require more accommodation to be focused on the retina. (wikipedia.org)
  • Over the years, art analysis has provided ample evidence of the chromostereoptic effect, but until about thirty years ago little was known about the neurological, anatomical and/or physiological explanation behind the phenomena. (wikipedia.org)
  • In a 1998 study of professional baseball players, hand-ocular dominance patterns did not show an effect on batting average or ERA. (wikipedia.org)
  • study
  • Yet, owing to the constant and minute nature of these motions, the study of their perceptual and physiological consequences has met significant technological challenges. (royalsocietypublishing.org)
  • Yet, the study of ocular instability has a long history-starting with Jurin's 1738 observation [ 1 ] that the 'trembling of the eye' is unremitting-but it has proceeded in spurts and starts, and it is only in recent years that it has become a mainstay of oculomotor and visual neuroscience. (royalsocietypublishing.org)
  • important
  • Physiological functioning of Katanin and the resulting microtubule fragmentation is now reported to be important underlying mechanism in cell division, neuron development, cell migration, and locomotory organelle formation. (hindawi.com)
  • Ocular dominance is an important consideration in predicting patient satisfaction with monovision correction in cataract surgery refractive surgery, also laser eye surgery, and contact lens wear. (wikipedia.org)
  • attention
  • Dr. Maria Montessori was one of the earlier educators who brought attention to this phenomenon and called it "Sensitive Periods", which is one of the pillars of her philosophy of education. (wikipedia.org)