Activity-dependent changes in synaptic strength, such as long-term potentiation (LTP) and long-term depression (LTD) of synaptic transmission, are considered to be the cellular substrates of learning and memory (Neves et al, 2008; Collingridge et al, 2010).
Structural plasticity of dendrites is considered the cellular substrate of learning and memory (Leuner and Shors 2004), and we observed that developmental A1254 exposure caused subtle but statistically significant delays in learning and memory that exhibited an inverted dose-related response similar to that observed for experience-dependent plasticity in A1254-treated animals.
F2 power increases in a step-like fashion between bar widths of 25 μm and 50 μm, suggesting that bipolar cells are likely the cellular substrate for nonlinear subunits (Victor and Shapley, 1979; Demb et al., 2001; Schwartz et al., 2012).
Although synaptic plasticity is believed to comprise the cellular substrate for learning and memory, limited direct evidence exists that hippocampus-dependent learning actually triggers synaptic plasticity.
Intriguingly, LTP is significantly impaired by the same tasks, suggesting that LTD is the main cellular substrate for this type of learning.
However, although the molecules that regulate synaptic plasticity in mice and humans are almost identical, the cellular substrates of cognitive processes in the two species are quite different.
The overall elastic properties, and in particular the stretchability, of such systems are difficult to determine, however, because they depend strongly on the alignment and position of the serpentine interconnects relative to the openings in the cellular substrate, which is difficult to precisely control, even with the assistance of precision stages and visualization hardware.
A clonal cell line that supported high-level replication of ts4149 at the non-permissive temperature was designated CAN20 and used as the cellular substrate to generate MVAΔudg recombinants.
While inhibitory interneurons have gained center stage in rhythmogenesis, with several studies pointing to the role of specific interneuron types in relation to type 1 theta in dHipp7,27,28, little is known about the cellular substrates underlying type 2 theta.
Altogether, these findings suggest that cortical tension and/or stiffness is enhanced at EVL cell borders and that this local property of the cellular substrate favours adhesive and tensile cell substrate interactions that foster the migration of DCL cells.
