The Relationship between Parameters of Long-Latency Evoked Potentials in a Multisensory Design.

In previous papers, we have shown that parameters of the omitted stimulus potential (OSP), which occurs at the end of a train of sensory stimuli, strongly depend on the modality. A train of stimuli also produces long-latency evoked potentials (LLEP) at the beginning of the train. This study is an extension of the OSP research, and it tested the relationship between parameters (ie, rate of rise, amplitude, and peak latency) of the P2 waves when trains of auditory, visual, or somatosensory stimuli were applied.

[P200 parameters in patients with diabetes mellitus type 2 (DM2)].

Introduction: A complication underserved in diabetic patients is the cognitive deficits that can reach dementia. Studying the association between electrophysiological, neuropsychological, and biochemical measures could provide a breakthrough in the understanding of this phenomenon.

Objectives: To compare P200 parameters between subjects with and without diabetes mellitus type 2 and to determine their relationship with biochemical and neuropsychological indicators.

[Optical coherence tomography and visual evoked potentials in patients with type 2 diabetes with and without retinopathy: preliminary report].

Introduction: Diabetic retinopathy remains the leading visual complication of diabetes mellitus type 2 (DM2) in productive patients. It evolves from a non-proliferative stage, occasionally asymptomatic, until a proliferative phase with neovascularization, retinal detachment and blindness. There are many reports that compare visual, biochemical or electrophysiological parameters among diabetic patients and healthy controls.

Alcohol effects on the P2 component of auditory evoked potentials.

This is a second part of a research aimed to study the effects of alcohol on the electrophysiological processes in student volunteers. The first part showed that alcohol slowed the Omitted Stimulus Potential (OSP). This work studied the ethanol effects on the parameters (i.

Multiunit recording of the cerebellar cortex, inferior olive, and fastigial nucleus during copulation in naive and sexually experienced male rats.

The sexual behavior of male rats constitutes a natural model to study learning of motor skills at the level of the central nervous system. We previously showed that sexual behavior increases Fos expression in granule cells at lobules 6 to 9 of the vermis cerebellum. Herein, we obtained multiunit recordings of lobules 6a and 7 during the training period of naive subjects, and during consecutive ejaculations of expert males.