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There is some controversy concerning whether or not the visual abilities of the newborn are mediated entirely through subcortical pathways or whether the visual cortex is functioning at birth. A critical test of cortical functioning is discrimination of orientation: orientation-selective neurons are found in the visual cortex but not in subcortical parts of(More)
Three experiments are described which relate to models of infant visual preferences, and to the ways in which preferences can be modified or created by habituation. In all experiments newborn babies were used as subjects. In Experiments equated 1 and 2 infants were presented with pairs of stimuli that were equated for contour density but which differed in(More)
Two experiments are described whose aim was to explore the new-born baby's capacity for forming visual memories. An habituation procedure was used that accommodated individual differences by allowing each infant to control the time course of the habituation trials. In Expt 1 an habituation-dishabituation paradigm was used, and in Expt 2 subjects were given(More)
There is current concern about the level of excessive gambling in a number of countries, but problem gambling still occupies an uncertain place in the addictions field. The present paper presents results from a pilot study comparing 16 problem gamblers and 16 problem drinkers. Results from a new Attachment Questionnaire suggested that gamblers were just as(More)
Two experiments are described the object of which was to investigate whether perception of shape at birth is determined solely by proximal (retinal) stimulation, or whether newborn babies have the ability to perceive objective, real shape across changes in slant. In experiment 1 looking at (ie preference for) one stimulus, a square, when paired with either(More)
A preferential-looking procedure was used to investigate newborns' responses to square-wave gratings varying in spatial frequency and contrast. A preliminary study confirmed that the gratings used in the experiment were suprathreshold. In the experiment newborns' preference for a grating of 0.1 cycle deg-1 within the peak contrast sensitivity range was(More)
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