Psychology & Psychiatry

Study provides insights into depression via ophthalmology

Scientists from the Max Planck Institute of Psychiatry measured the pupillary reaction of participants while they were solving a task. In healthy participants, the pupils dilated during the task in anticipation of a reward, ...

Psychology & Psychiatry

Neuroscientists identify 'chemical imprint of desire'

Hop in the car to meet your lover for dinner and a flood of dopamine— the same hormone underlying cravings for sugar, nicotine and cocaine—likely infuses your brain's reward center, motivating you to brave the traffic ...


Validating the role of inhibitory interneurons in memory

Memory, a fundamental tool for our survival, is closely linked with how we encode, recall, and respond to external stimuli. Over the past decade, extensive research has focused on memory-encoding cells, known as engram cells, ...


New study uncovers the underlying complexity of brain synapses

A new study published in Cell is reshaping our understanding of the fundamental building blocks of the brain, the proteins that are present at synapses. Titled "The proteomic landscape of synaptic diversity across brain regions ...


Study maps brain wave disruptions affecting memory recall

The brain circuitry that is disrupted in Alzheimer's disease appears to influence memory through a type of brain wave known as theta oscillation, a team led by UT Southwestern Medical Center researchers report. The findings, ...

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Neurotransmitters are endogenous chemicals which relay, amplify, and modulate signals between a neuron and another cell. Neurotransmitters are packaged into synaptic vesicles that cluster beneath the membrane on the presynaptic side of a synapse, and are released into the synaptic cleft, where they bind to receptors in the membrane on the postsynaptic side of the synapse. Release of neurotransmitters usually follows arrival of an action potential at the synapse, but may follow graded electrical potentials. Low level "baseline" release also occurs without electrical stimulation.

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