Now showing items 31-40 of 135
Emotional responses toward humans in monkeys with selective frontal lesions
(Elsevier, 1968-03)
Monkeys with lateral or orbital frontal lesions, operated controls with inferotemporal lesions and unoperated controls were tested for aggressive and aversive responses toward humans as judged by three observers. Contrary ...
Flicker fusion characteristics of rod photoreceptors in the toad
(Elsevier, 1983)
Critical fusion frequency (CFF) of toad rods was examined at various intensities using intracellular recordings. Data were compared to CFF measurements (as a function of intensity) obtained with the electroretinogram (ERG) ...
Impairment in sampling visual stimuli in monkeys with inferotemporal lesions
(Elsevier, 1970-03)
Monkeys with inferotemporal (IT) lesions and their controls, monkeys with partial removal of striate cortex (LS) and unoperated monkeys, were trained to discriminate between two stimulus compounds differing in brightness ...
The long-term effects of neurotoxic doses of methamphetamine on the extracellular concentration of dopamine measured with microdialysis in striatum
(Elsevier, 1990-03-02)
The extracellular concentrations of dopamine (DA), dihydroxyphenylacetic acid (DOPAC), homovanillic acid (HVA), and 5-hydroxyindoleacetic acid (5-HIAA) in the striatum were measured by in vivo microdialysis in freely moving ...
Recovery from lateralized neocortical damage: dissociation between amphetamine-induced asymmetry in behavior and striatal dopamine neurotransmission in vivo
(Elsevier, 1992-02-07)
It has been hypothesized that neocortical damage is accompanied by secondary changes in other brain areas (the shock or diaschisis of von Monakow), which contributes to initial non-specific behavioral depression. The ...
Relative modulation sensitivities of the red and green color mechanisms
(Elsevier, 1978)
The sensitivities of the human green and red cone mechanisms to sinusiodally flickering light were found to be near equal and independent of field size and estimation method. No wavelength dependency of modulation sensitivity ...
Morphine alters the structure of neurons in the nucleus accumbens and neocortex of rats
(John Wiley & Sons, Inc., 1999-08)
Rats were given repeated injections of 10 mg/kg of morphine and were then left undisturbed for 24–25 days before their brains were processed for Golgi-Cox staining. Prior exposure to morphine decreased the complexity of ...
Depth of focus, eye size and visual acuity
(Elsevier, 1980)
We develop formulas for calculating the approximate depth of focus of any eye. They show that the magnitude of depth of focus is inversely proportional to the size of the eye and to its visual acuity. One particular ...
Evidence for a power law intensity code in the coupled cones of the turtle
(Elsevier, 1990)
The hyperpolarizing responses to light were recorded intracellularly from red cones of the turtle, Pseudemys scripta elegans. Pairs of slit stimuli were flashed alone or together at various intensities, one slit positioned ...
Unilateral striatal lesions in the cat disrupt well-learned motor plans in a GO/NO-GO reaching task
(Springer-Verlag; Springer-Verlag Berlin Heidelberg, 1997-03)
We examined the changes in learned and spontaneous motor behavior after a unilateral excitotoxin lesion of the neostriatum. Cats were trained to perform a sensory-cued GO/NO-GO reaching task. Success rate, reaction time, ...