Maturation of visual electrocortical responses in unanesthetized kittens: Effects of barbiturate anesthesia

Rose, Guenter H.; Gruenau, Steven P.; Spencer, John W.

doi:10.1016/0013-4694(72)90042-9

Cited by 23 publications

(14 citation statements)

References 35 publications

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“…(2) Primary and secondary components were not differentiated as a function of cortical location or age. These findings are contrary to those reported in the cat (Rose & Lindsley, 1968), dog (Fox, 1968), and human (Ellingson, 1964). Here, the common observation related the late-occurring components (200 msec and beyond) to widespread cortical areas (including frontal, temporal, and sensorimotor areas), whereas those of less than 100 msec latency were confined to the visual-specific cortex.…”

Section: Topographical Distribution Of Ver'scontrasting

confidence: 99%

Visual evoked response (VER) changes during maturation in the weddell seal

Gruenau

Shurley

1976

Developmental Psychobiology

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Visual evoked responses (VER'S) were recorded from the cortex of immature Weddel seals, 3-365 days of age. Results indicated a high degree of maturity at birth evident from the multiphasic array of waveforms and the comparatively short onset latency of the VER. At low intensities, single flashes evoked an immature secondary response. Topographical distribution of VER's were confined largely to the gyrus immediately adjacent to midline, from the posterior aspect near lambda to the vertex. Recordings from CI-744 dosed seals displayed a well-demarcated developmental sequence of VER's, contrary to VER's recorded in flaxedilized seals. Onset latency and waveform configuration changed concomitantly as a function of age. During the postnatal period from birth to weaning, VER changes were related to major behavioral events such as the seal's first encounter with swimming and diving at 2 weeks of age and weaning at 6 weeks of age.

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Section: Topographical Distribution Of Ver'scontrasting

confidence: 99%

Visual evoked response (VER) changes during maturation in the weddell seal

Gruenau

Shurley

1976

Developmental Psychobiology

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“…Furthermore, the anatomy of the bovine eye and retina (another precocial species) has been shown to be fully developed at birth, and the VEP of the calf, as well as in other ungulates such as the lamb and piglet, has been described as almost fully mature . In contrast, the eye and retina of the cat and dog, both altricial species, go through substantial anatomical and functional maturation during the postnatal period, and it has also been shown that cats and dogs have immature visual evoked responses during the first weeks and months of life …”

Section: Discussionmentioning

confidence: 99%

“…13,14,27 In contrast, the eye and retina of the cat and dog, both altricial species, go through substantial anatomical and functional maturation during the postnatal period, [28][29][30][31] and it has also been shown that cats and dogs have immature visual evoked responses during the first weeks and months of life. [9][10][11][12] Most foals move their heads away from a threatening gesture indicating that they can perceive the stimulus, although the quality of vision is difficult to assess. 32 However, a normal menace response is often not seen until up to 2 weeks postpartum, whereas subcortical reflexes, such as the pupillary light and dazzle reflexes, are present at birth in the foal.…”

Section: T a B L E 1 Flash Visual Evoked Potentials (Fveps) In Newbormentioning

confidence: 99%

Age‐associated changes in the equine flash visual evoked potential

Ström

Michanek²,

Ekesten

2018

Veterinary Ophthalmology

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The overall equine FVEP waveform was similar across the normal life-span of the horse in our cross-sectional study. We found that the visual system of the foal seems to be well developed already at birth. Furthermore, our results showed a decrease in amplitudes and increase in some peak times with increasing age. We recommend that age-matched controls should be used when evaluating foals and young horses in clinical practice, whereas horses over the age of three years can be compared to other adult horses.

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“…The younger group (Group A) began initial training at 14-16 days of age whereas the older (Group B) began at 28-30 days. The choice of age groups was made relative to the achievement of adult-like visual electrocortical response in kittens between 4 and 5 weeks of age (Rose, Gruenau, & Spencer, 1972). Thus, visual training was initiated 2 weeks before (Group A) and during (Group B) this period, on the assumption that the cortical maturation also reflects the attainment of mature-like subcortical integrations necessary for certain visual learning functions.…”

Section: Subjectsmentioning

confidence: 99%

Light‐dark discrimination and reversal learning in early postnatal kittens

Rose

Collins

1975

Developmental Psychobiology

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During the early postnatal period kittens were trained in a visual discrimination task involving light-dark stimuli in order to determine the age of onset of visual control of learned behavior. A Y water maze was used with escape from water as the reinforcer. The results indicate that kittens are able to master the discrimination within the 5th week of life. The relevance of this result to electrophysiological measures of maturation is discussed.

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Maturation of visual electrocortical responses in unanesthetized kittens: Effects of barbiturate anesthesia

Cited by 23 publications

References 35 publications

Visual evoked response (VER) changes during maturation in the weddell seal

Visual evoked response (VER) changes during maturation in the weddell seal

Age‐associated changes in the equine flash visual evoked potential

Light‐dark discrimination and reversal learning in early postnatal kittens

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