Although the Morris water task has been used in hundreds of studies of place learning, there have been no systematic studies of retention of the place memory. We report that retention, as measured by selective search behavior on a probe trial, is excellent when the retention interval is short (5-10 min). However, performance rapidly deteriorates,…

Visual discrimination tasks are increasingly used to explore the neurobiology of vision in rodents, but it remains unclear how the animals solve these tasks: Do they process shapes holistically, or by using low-level features such as luminance and angle acuity? In the present study we found that when discriminating triangles from squares, rats did…

In this article, the author discusses various conceptions about the teacher's body. He states that the teacher's body is not just a pile of organs and meat in a skin corset. As part of the performance metaphor--commonly read as part of education-as-spectacle--it translates institutional systems and institutional ideas into a social order, and at…

Numerous studies of verbal creativity indicate that idea originality increases progressively as more ideas are produced. The present study tested the effects of practice upon nonverbal creativity. Thirty-two fifth grade children were administered Form A and/or Form B of Torrance's picture completion task for 5 consecutive days. Figural originality…

Discusses the emergence and early development of symbolic functioning in children engaged in nonverbal, expressive activities. Concludes that symbolic functioning must be considered in the affective as well as cognitive sphere of development. Implications for educational practice and questions for further research are presented. (DP)

Describes procedures used to study abilities of chimpanzees to be taught written language. Words, sentences, questions, metalinguistics, class concepts, the copula, some quantifiers and if-then logical connections are investigated. Success seems attributable largely to non-linguistic cues. (JM)

The study of 813 learning disabled children (ages 6-11) with test-retest data (after three years) on 224 children found the children to suffer a progressive deterioration in verbal ability whereas their nonverbal ability showed an increase in the earlier years, leveling off thereafter. (Author/DB)

Investigated the ontogenesis of oddity learning. Children and adults were tested on two versions of the oddity task using nonverbal procedures. Results suggested that children use different strategies to solve different versions of the oddity task, and in tasks in which stimuli are presented simultaneously, behavior may be controlled by stimulus…

Spontaneous recovery from extinction is one of the most basic phenomena of Pavlovian conditioning. Although it can be studied by using a variety of designs, some procedures are better than others for identifying the involvement of underlying learning processes. A wide range of different learning mechanisms has been suggested as being engaged by…

Impairment of hippocampal function precedes frontal and parietal cortex impairment in human Alzheimer's disease(AD). Neurotrophins are critical for behavioral performance and neuronal survival in AD. We used complex and radial mazes to assess spatial orientation and learning in wild-type and B6-Tg(ThylAPP)23Sdz (APP23) animals, a transgenic mouse…

Intelligence Quotient (IQ) tests show that there is a rise in IQ measurement up to age 5 1/2, yet the IQ levels off and drops at age 8 1/2. The shift from unrestricted television viewing for preschoolers to the emphasis on verbal communication in school may be the cause. Visual languages within a symbolic system could be one method of…

A discussion of learning potential among educable retardates reflects the author's findings that some solved difficult problems on the Kohs block designs, some did not do well at first but improved after coaching, and some did not do well before or after coaching. Additional studies of these highscorers, gainers, and nongainers are cited which…

The play behavior of young children is viewed as a behavioral manifestation of nonverbal thinking. Discussed are issues of relevance to the understanding of the development of thought in general and of the symbolic function in particular. A line of development is proposed which leads from early nonverbal thought as manifested in play, either…

Introspective experiences that nine University of Tulsa (Oklahoma) faculty members (aged 29-52 years) have when acquiring cognitive skills without awareness were studied as they acquired nonconscious knowledge about a pattern of stimuli. Nonconsciously acquired knowledge was automatically used to facilitate performance, without conscious…