In chronic alert rabbits, both transient and sustained influence of the nucleus lateralis posterior upon visual cortical responses to the light flashes, were shown. The transient influences were revealed by an increase of the responses amplitude in the nucleus lateralis posterior and by a decrease of the amplitude during the K depression. The sustained influences took part in forming of thalamo-cortical responses in visual cortex. This reciprocity was particularly obvious during pulse stimulation of the nucleus lateralis posterior. The sustained influences were more significant than the transient ones.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Myonuclear and satellite cell content of the vastus lateralis and soleus with 70 days of simulated microgravity and the NASA SPRINT exercise program.
J Appl Physiol (1985)
January 2025
Human Performance Laboratory, Ball State University, Muncie, Indiana, United States.
We previously observed a range of whole muscle and individual slow and fast myofiber size responses (mean: +4 to -24%) in quadriceps (vastus lateralis) and triceps surae (soleus) muscles of individuals undergoing 70 days of simulated microgravity with or without the NASA SPRINT exercise countermeasures program. The purpose of the current investigation was to further explore, in these same individuals, the content of myonuclei and satellite cells, both of which are key regulators of skeletal muscle mass. Individuals completed 6° head-down-tilt bedrest (BR, = 9), bedrest with resistance and aerobic exercise (BRE, = 9), or bedrest with resistance and aerobic exercise and low-dose testosterone (BRE + T, = 8).
View Article and Find Full Text PDFThe External Globus Pallidus as the Hub of the Auditory Cortico-Basal Ganglia Loop.
eNeuro
November 2024
Department of Sensory and Cognitive Physiology, Faculty of Life Sciences, Kumamoto University, Kumamoto 860-8556, Japan.
Article Synopsis
- The cortico-basal ganglia loop has been traditionally seen as three separate networks: motor, limbic, and associative, but this view doesn’t fully capture its complexity, especially in sensory processing like hearing.
- Recent research demonstrates an auditory-specific loop within this system using transgenic mice, identifying the caudal external globus pallidus (GPe) as a key output node.
- GABAergic neurons in the caudal GPe are crucial as they connect to various brain regions, suggesting these circuits could be important for triggering defensive responses to sounds.
Comparison of pain modulatory effect of the LPGi estragon receptor on inflammatory pain between pro-estrus and estrus phases and OVX rats.
Psychopharmacology (Berl)
January 2025
Department of Animal Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran.
The present study has investigated whether circulating estrogen level variations in the pro-estrus and estrus phases of the intact rats and estrogen depletion in the ovariectomized animals (OVX) adjust the formalin-induced nociceptive behaviors. During the pro-estrus and estrus phases of rats' estrus cycle and in the OVX rats, 17β-estradiol and ICI 182,780 (estrogen receptor antagonist) were administered into the right paragigantocellularis lateralis (LPGi) nucleus. Then, the formalin-induced flexing and licking responses were recorded for 60 min.
View Article and Find Full Text PDFHypothalamic integration of nutrient sensing in fish.
J Exp Biol
August 2024
Centro de Investigación Mariña, Laboratorio de Fisioloxía Animal, Departamento de Bioloxía Funcional e Ciencias da Saúde, Facultade de Bioloxía, Universidade de Vigo, 36310 Vigo, Spain.
The hypothalamus plays a crucial role in regulating feeding behavior in fish. In this Review, we aim to summarise current knowledge on specific mechanisms for sensing glucose, fatty acids and amino acids in fish, and to consider how this information is integrated in the hypothalamus to modulate feed intake. In fish, specific neuronal populations in the nucleus lateralis tuberalis (NLTv) of the hypothalamus are equipped with nutrient sensors and hormone receptors, allowing them to respond to changes in metabolite levels and hormonal signals.
View Article and Find Full Text PDFFast and slow myofiber nuclei, satellite cells, and size distribution with lifelong endurance exercise in men and women.
Physiol Rep
July 2024
Human Performance Laboratory, Ball State University, Muncie, Indiana, USA.
We previously observed lifelong endurance exercise (LLE) influenced quadriceps whole-muscle and myofiber size in a fiber-type and sex-specific manner. The current follow-up exploratory investigation examined myofiber size regulators and myofiber size distribution in vastus lateralis biopsies from these same LLE men (n = 21, 74 ± 1 years) and women (n = 7, 72 ± 2 years) as well as old, healthy nonexercisers (OH; men: n = 10, 75 ± 1 years; women: n = 10, 75 ± 1 years) and young exercisers (YE; men: n = 10, 25 ± 1 years; women: n = 10, 25 ± 1 years). LLE exercised ~5 days/week, ~7 h/week for the previous 52 ± 1 years.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!