Bamboo sharks (Chiloscyllium griseum) were tested for their ability to perceive subjective and illusionary contours as well as line length illusions. Individuals were first trained to differentiate between squares, triangles, and rhomboids in a series of two alternative forced-choice experiments. Transfer tests then elucidated whether Kanizsa squares and triangles, grating gaps and phase shifte...

The genus Apatema Walsingham, 1900 in the Canary Islands and Madeira is revised based on external morphology, genitalia DNA barcodes. We recognize 18 species, 13 of which are described as new: confluellum Falck & Karsholt, sp. n. (Spain: Tenerife), minimum Lanzarote Fuerteventura), lapalmae La Palma), sallyae Gran Canaria), lanzarotae Lanzarote), mixtum pseudolucidum griseum grancanariae br...

The characteristics and distribution pattern of retinal afferent terminals making synaptic contacts on narrow field vertical neurons in the stratum griseum superficiale of the rabbit superior colliculus were studied using the Golgi-gold substitution technique in combination with either autoradiographic or degenerative methods. At the level of light microscopy, identified gold-toned vertical neu...

This report presents 4 subjects with congenital segmental callosal thickening, an uncommon malformation studied with MR imaging and DTI. Medical records were reviewed for genetic testing and neurodevelopmental status. Three subjects had profound developmental delay; 3 had seizures. MR imaging showed segmental thickening of the rostral and/or midcallosal body. Associated anomalies included polym...

Ninety-day-old hooded male rats were anaesthetised with an intraperitoneal injection of a mixture of xylazine and ketamine and had their right eyes removed. Groups of non-enucleated control and enucleated rats were killed at either 150 or 390 days of age by intracardiac perfusion with fixatives. Stereological methods were used to estimate the synapse-to-neuron ratios within the stratum griseum ...

Midline astroglia in the cerebral cortex develop earlier than other astrocytes through mechanisms that are still unknown. We show that radial glia in dorsomedial cortex retract their apical endfeet at midneurogenesis and translocate to the overlaying pia, forming the indusium griseum. These cells require the fibroblast growth factor receptor 1 (Fgfr1) gene for their precocious somal translocati...

Four bioactive compounds have been isolated from the fungus Oidiodendron griseum UBOCC-A-114129 cultivated from deep subsurface sediment. They were structurally characterized using a combination of LC-MS/MS and NMR analyses as fuscin and its derivatives (dihydrofuscin, dihydrosecofuscin, and secofuscin) and identified as polyketides. Albeit those compounds were already obtained from terrestrial...