Gap junctions in the epithelium and superficial fiber cells from young mice were examined in lenses prepared by rapid-freezing, and processed for freeze-substitution and freeze-fracture electron microscopy. There appeared to be three structural types of gap junction: one type between epithelial cells and two types between fiber cells. Epithelial gap junctions seen by freeze-substitution were ap...

Form, motion, occlusion, and perceptual organization are intimately related. We sought to assess the role of junctions in their interaction. We used stimuli based on a cross moving within an occluding aperture. The two bars of the cross appear to cohere or move separately depending on the context; in accord with prior literature, motion interpretation depends in part on whether the bar endpoint...

INTRODUCTION Arguably, the biological basis of the mechanical properties observed in epithelial tissues resides within the complex threedimensional arrangement of intercellular junctions that serve to anchor intracellular actin and intermediate filament networks of individual cells. Morphologically, anchoring junctions are often classified as (i) cell-cell junctions: adherens junctions and desm...

Electromagnetic transport measurements were combined with high-resolution electron microscopy observations to study the relation between structure and local critical currents in YBa2Cu3O7−x (YBCO) Josephson junctions. The spatial variation of the critical current J (x) along the length of the boundary for interface engineered Josephson junctions and bicrystal grain boundary Josephson junctions ...

Gap junctions are common between cortical GABAergic interneurons but little is known about their quantitative distribution along dendritic profiles. Here, we provide direct morphological evidence that parvalbumin-containing GABAergic neurons in layer 2/3 of the cat visual cortex form dense and far-ranging networks through dendritic gap junctions. Gap junction-coupled networks of parvalbumin neu...