Serotonin (5-hydroxytryptamine, 5-HT) is acknowledged as a major neuromodulator of
nervous systems in both invertebrates and vertebrates. It has been proposed for several …

Abstract Serotonin, or 5-hydroxytryptamine (5-HT), is found to be involved in many
physiological or pathophysiological processes including cognitive function. Seven distinct …

Invertebrate receptors for the neurotransmitter serotonin (5-HT) have been identified in
numerous species from diverse phyla, including Arthropoda, Mollusca, Nematoda and …

Abstract Serotonin (5-HT) and dopamine are critical neuromodulators known to regulate a
range of behaviors in invertebrates and mammals, such as learning and memory. Effects of …

In metazoans, neuronal and endocrine communication is based on the release of
extracellular signalling molecules that are recognised in a physiological concentration range …

The serotonergic system has been widely studied across animal taxa and different functional
networks. This modulatory system is therefore well positioned to compare the consequences …

The serotonergic system in vertebrates and invertebrates has been a focus for over 50 years
and will likely continue in the future. Recently, genomic analysis and discovery of alternative …

At the sensory-motor neuron synapse of Aplysia, either spaced or continuous (massed)
exposure to serotonin (5-HT) induces a form of intermediate-term facilitation (ITF) that …

Long-term changes in membrane potential after associative training were described
previously in identified premotor interneurons for withdrawal of the terrestrial snail Helix …

Highlights Daily injection of serotonin before a training session accelerated defensive reflex
conditioning in snails. Daily injection of 5-hydroxytryptophan before a training session in …