International Journal of Neuroscience 

About: International Journal of Neuroscience is an academic journal published by Informa. The journal publishes majorly in the area(s): Medicine & Stroke. It has an ISSN identifier of 0020-7454. Over the lifetime, 5853 publications have been published receiving 106907 citations.

Subjective and Objective Sleepiness in the Active Individual

Abstract: Eight subjects were kept awake and active overnight in a sleep lab isolated from environmental time cues. Ambulatory EEG and EOG were continuously recorded and sleepiness ratings carried out every two hours as was a short EEG test session with eyes open for 5 min and closed for 2 min. The EEG was subjected to spectral analysis and the EOG was visually scored for slow rolling eye movements (SEM). Intrusions of SEM and of alpha and theta power density during waking, open-eyed activity strongly differentiated between high and low subjective sleepiness (the differentiation was poorer for closed eyes) and the mean intraindividual correlations between subjective and objective sleepiness were very high. Still, the covariation was curvilinear; physiological indices of sleepiness did not occur reliably until subjective perceptions fell between "sleepy" and "extremely sleepy-fighting sleep"; i.e. physiological changes due to sleepiness are not likely to occur until extreme sleepiness is encountered. The results support the notion that ambulatory EEG/EOG changes may be used to quantify sleepiness.

The use of the Morris water maze in the study of memory and learning

Abstract: Although the Morris Water Maze (MWM) was introduced only a few years ago, this technique has gained wide popularity, as the large number of publications in which it is employed, testifies. A review...

Single Auditory Units in the Superior Olivary Complex: II: Locations of Unit Categories and Tonotopic Organization

Abstract: The locations of various categories of units are described and correlations are found between unit properties and unit locations. Units on the edges of the medial superior olive (MSO) and the lateral superior olive (LSO) appear to have properties different from units inside these nuclei. Many units in the dorsomedial periolivary nucleus had wide tuning curves and some had very long latencies. Almost all units in the medial nucleus of the trapezoid body (MNTB) had irregular firing patterns, but most units in the LSO and the dorsolateral periolivary nucleus had regular firing patterns. Class 2 (off) units may correspond to ‘stellate’ cells of the MNTB.With few exceptions, units dorsolateral to the MSO were excited by ipsilateral sounds, and units ventromedial to the MSO, or in the ventral nucleus of the lateral lemniscus (VNLL), were excited by contralateral sounds.Best frequencies were arranged from high to low (1) from ventromedial to dorsolateral in the MSO, (2) from the medial limb to the lateral limb i...

Normative data and a short form of the Barratt Impulsiveness Scale.

Abstract: The Barratt Impulsiveness Scale is one of the most commonly used scales to measure impulsivity. It has demonstrated validity in several neuropsychiatric populations and correlates with objective neuropsychological measures and impulsivity-related behaviors in healthy individuals. Neuroimaging studies show that BIS scores relate to prefrontal structure and function, as well as central serotonergic function. This study reports normative data and demographic influences in a community sample (n = 700). A 15-item short form of the BIS (BIS 15) is presented that retains the 3-factor structure (nonplanning, motor impulsivity, and attention impulsivity), and maintained good reliability and validity.

Cortisol decreases and serotonin and dopamine increase following massage therapy

Abstract: In this article the positive effects of massage therapy on biochemistry are reviewed including decreased levels of cortisol and increased levels of serotonin and dopamine. The research reviewed inc...