Paired-associate transfer following early stages of list I learning.

1967 ◽  
Vol 73 (4, Pt.1) ◽  
pp. 589-594 ◽  
Author(s):  
Richard M. Schulman
1963 ◽  
Vol 12 (3) ◽  
pp. 695-721 ◽  
Author(s):  
William F. Battig ◽  
Sam C. Brown ◽  
Douglas Nelson

Typical varied serial-order conditions of paired-associate (PA) learning were compared with a constant serial order on all trials in 5 experiments involving systematic variations in method, kind of material, and other potentially relevant factors. The results showed a small but relatively consistent facilitation by constant serial order limited primarily to later stages of learning. Since a shift following the first correct response to each pair from constant to varied serial order produced as much facilitation as did completely constant-order conditions, it was concluded that complex associations involving serial position are developed during early stages of constant-order PA learning, but that these exercise a facilitating influence primarily through the reduction of inter-pair interference late in learning.


Author(s):  
George G. Cocks ◽  
Louis Leibovitz ◽  
DoSuk D. Lee

Our understanding of the structure and the formation of inorganic minerals in the bivalve shells has been considerably advanced by the use of electron microscope. However, very little is known about the ultrastructure of valves in the larval stage of the oysters. The present study examines the developmental changes which occur between the time of conception to the early stages of Dissoconch in the Crassostrea virginica(Gmelin), focusing on the initial deposition of inorganic crystals by the oysters.The spawning was induced by elevating the temperature of the seawater where the adult oysters were conditioned. The eggs and sperm were collected separately, then immediately mixed for the fertilizations to occur. Fertilized animals were kept in the incubator where various stages of development were stopped and observed. The detailed analysis of the early stages of growth showed that CaCO3 crystals(aragonite), with orthorhombic crystal structure, are deposited as early as gastrula stage(Figuresla-b). The next stage in development, the prodissoconch, revealed that the crystal orientation is in the form of spherulites.


Author(s):  
S. Mahajan

The evolution of dislocation channels in irradiated metals during deformation can be envisaged to occur in three stages: (i) formation of embryonic cluster free regions, (ii) growth of these regions into microscopically observable channels and (iii) termination of their growth due to the accumulation of dislocation damage. The first two stages are particularly intriguing, and we have attempted to follow the early stages of channel formation in polycrystalline molybdenum, irradiated to 5×1019 n. cm−2 (E > 1 Mev) at the reactor ambient temperature (∼ 60°C), using transmission electron microscopy. The irradiated samples were strained, at room temperature, up to the macroscopic yield point.Figure 1 illustrates the early stages of channel formation. The observations suggest that the cluster free regions, such as A, B and C, form in isolated packets, which could subsequently link-up to evolve a channel.


2020 ◽  
Vol 228 (4) ◽  
pp. 278-290 ◽  
Author(s):  
Eylul Tekin ◽  
Henry L. Roediger

Abstract. Recent studies have shown that judgments of learning (JOLs) are reactive measures in paired-associate learning paradigms. However, evidence is scarce concerning whether JOLs are reactive in other paradigms. In old/new recognition experiments, we investigated the reactivity effects of JOLs in a levels-of-processing (LOP) paradigm. In Experiments 1 and 2, for each word, subjects saw a yes/no orienting question followed by the target word and a response. Then, they either did or did not make a JOL. The yes/no questions were about target words’ appearances, rhyming properties, or category memberships. In Experiment 3, for each word, subjects gave a pleasantness rating or counted the letter “e ”. Our results revealed that JOLs enhanced recognition across all orienting tasks in Experiments 1 and 2, and for the e-counting task in Experiment 3. This reactive effect was salient for shallow tasks, attenuating – but not eliminating – the LOP effect after making JOLs. We conclude that JOLs are reactive in LOP paradigms and subjects encode words more effectively when providing JOLs.


1976 ◽  
Vol 12 (2) ◽  
pp. 119-124 ◽  
Author(s):  
Nancy J. Treat ◽  
Hayne W. Reese

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