The present study examined word learning difficulties in Chinese dyslexic children, readers of a nonalphabetic script. A total of 105 Hong Kong Chinese children were recruited and divided into three groups: Dyslexic (mean age 8;8), CA control (mean age 8;9), and RL control (mean age 6;11). They were given a word learning task and a familiar word…

To obtain evidence linking long-term potentiation (LTP) and memory, we examined whether LTP induction modifies functional relationship among neurons in the rat hippocampus. In contrast to neurons in low-frequency stimulated or AP5-treated slices, LTP induction altered "functional connectivity," as defined by the degree of synchronous firing, among…

We tested whether memory deficits in temporal lobe epilepsy (TLE) are better described by a single- or dual-store memory model. To this aim, we analyzed the influence of TLE and proactive interference (PI) on immediate and 24-h long-term recency effects during face recognition in 16 healthy participants and 18 right and 21 left non-surgical TLE…

The prefrontal cortex of the primate frontal lobes provides the capacity for judgment which can constantly adapt behavior in order to optimize its outcome. Adjudicating between long-term memory programs and prepotent responses, this capacity reviews all incoming information and provides an interpretation dependent on the events that have just…

This paper discusses brain-based learning and its relation to classroom instruction. A rapidly growing quantity of research currently exists regarding how the brain perceives, processes, and ultimately learns new information. In order to maximize their teaching efficacy, educators should have a basic understanding of key memory functions in the…

Memory deficits produced by marijuana arise partly via interaction of the psychoactive component, [Deta][superscript 9]-tetrahydrocannabinol ([Deta][superscript 9]-THC), with cannabinoid receptors in the hippocampus. Although cannabinoids acutely reduce glutamate release and block hippocampal long-term potentiation (LTP), a potential substrate for…

Previous work has established that a narrated animation is more effective at communicating a complex biological process (signal transduction) than the equivalent graphic with figure legend. To my knowledge, no study has been done in any subject area on the effectiveness of animations versus graphics in the long-term retention of information, a…

Tested the hypothesis that fourth-graders have a greater tendency than first-graders to represent transformations as ordered series of beginning, middle, and end states. Predominantly constructed states of fourth-graders were components of continuous movements or transformations, whereas those of first-graders related to the experimenters' on the…

Mildly mentally retarded (N=27) and nonretarded teenagers' long-term recognition for faces was compared. Retarded subjects performed at a lower overall level than nonretarded subjects with significant losses after 1 day and 1 week but no further losses at 6-month followup. Results suggested longterm memory may be unrelated to intelligence level.…

Outlines a proposed model for understanding the human information processing system, which is conceptualized in terms of three interrelated major elements--executive, working, and long-term memory--with emphasis on the structure of long-term memory. Thirty-one references are listed. (MBR)

The present study was designed to determine whether a reactivation procedure (consisting of the experimenter's manipulation of a previously experienced overhead crib mobile) would alleviate infant's poor retention after a 14-day interval. It is concluded that forgetting by young infants may result from failures in retrieval, and not failures in…

Children, ages 3 and 5, examined a "sick" teddy bear. Interviews with real props, toy props, or verbal prompts were conducted three days and one year later. After three days, real items and toys facilitated memory compared to verbal prompts, but reports with toys were less accurate than both. After one year, real items still helped…

Suggestibility was measured in 44 adult patients who recovered memories and in 31 comparison patients. Results suggest that patients who recovered memories were significantly less suggestible than average. Control patients with no history of sexual abuse were more at risk for altering memory to suggestive prompts. (Author/PB)

Examined learning problems in South African sample of 7- to 14-year-olds whose mothers reported excessively high infant bilirubin shortly after the child's birth. Found that this sample had lowered verbal ability with the majority also showing impaired short-term and long-term memory. Findings suggested that impaired formation of astrocytes…

Eight- through 11-year-olds watched photographic slides of faces of former preschool classmates and controls, once while their skin conductance was measured and again while reporting whether or not they recognized the faces. Both verbal report and skin conductance data showed low but above-chance differentiation between children's response to…