Spontaneous alternation and learning in rats

EEG spectral power alternation & learning disability in rats exposure to lead through prenatal developing age

Introduction: Lead intoxication in children has been associated with neurodevelopment disabilities that may result in motor and cognitive impairment. The aim of the present study is to evaluate in long term effects of prenatal exposure to low-level Pb2+ on learning, memory and EEG. Materials & Methods: Rat pregnant were exposed to distilled water or 0.05, 0.1, 0.2 % of Pb-acetate in the dr...

Spontaneous Alternation Behavior in Human Neutrophils

The presence of home-cage stimuli attenuates spontaneous-alternation deficits in rats with septal lesions

The present experiment examined the effects of the olfactory context on spontaneousalternation performance of young adult, female rats following septal lesions. Separate groups of rats were given either septal lesions (n=24) or control surgery (n=24), and then tested on the 8th postoperative day for spontaneous alternation across three trials. Half of the rats in each surgical group were tested...

Catecholamines and DOPAC in cortical and neostriatal regions during rats' learning of delayed alternation.

Dopamine, norepinephrine and DOPAC were measured in two cortical areas (the medial prefrontal and the posterolateral, Te2) and in the anterior and posterior neostriatum in rats which were exposed to three different experiences for three different lengths of time. One group learned delayed alternation and the two others served as controls. Throughout the training period all animals were housed i...

Spontaneous alternation in marine crabs: invasive versus native species.

Organisms ranging from paramecia to humans tend to explore places that have been least recently explored, which is referred to as spontaneous alternation. Although organisms rely on different sources of information in alternating between places, the emergent behavioral pattern is likely advantageous during exploration and foraging. Under this rationale, continuous spontaneous alternation perfor...