METHODS Recordings were made from forty acutely prepared cats, anaesthetized with
thiopental sodium, and maintained in light sleep with additional doses by observing the …

1. The striate cortex was studied in lightly anaesthetized macaque and spider monkeys by
recording extracellularly from single units and stimulating the retinas with spots or patterns of …

METHODS In this series of experiments twenty-four cats were used. Animals were
anaesthetized with intraperitoneal thiopental sodium (40 mg/kg) and light anaesthesia was …

Of the many possible functions of the macaque monkey primary visual cortex (striate cortex,
area 17) two are now fairly well understood. First, the incoming information from the lateral …

1. Kittens were visually deprived by suturing the lids of the right eye for various periods of
time at different ages. Recordings were subsequently made from the striate cortex, and …

METHODS Seventeen cats were used. Procedures for preparing the animal, including
anesthesia, immobilization of eyes, correction of refractive errors, and mapping of area …

1~ THE FIRST PAPER OF THIS SERIES(11) we showed that in a kitten 2-3 months of
monocular light and form deprivation can produce a marked atrophy of cells in the lateral …

Ocular dominance columns were examined by a variety of techniques in juvenile macaque
monkeys in which one eye had been removed or sutured closed soon after birth. In two …

IN THE NORMAL CAT OR KITTEN about four-fifths of cells in the striate cortex can be driven
by both eyes (3, 4). If, however, one eye of a newborn kitten is sewn shut and the visual …

METHODS Four kittens were operated upon at 8-10 days after birth, just at the time the eyes
were beginning to open. Periorbital tissues on the right were infiltrated with a local …