Search results
Results from the WOW.Com Content Network
The nucleus accumbens (NAc or NAcc; also known as the accumbens nucleus, or formerly as the nucleus accumbens septi, Latin for ' nucleus adjacent to the septum ') is a region in the basal forebrain rostral to the preoptic area of the hypothalamus. [1] The nucleus accumbens and the olfactory tubercle collectively form the ventral striatum.
The limbic system, also known as the paleomammalian cortex, is a set of brain structures located on both sides of the thalamus, immediately beneath the medial temporal lobe of the cerebrum primarily in the forebrain. [1] Its various components support a variety of functions including emotion, behavior, long-term memory, and olfaction.
Dopaminergic pathways (dopamine pathways, dopaminergic projections) in the human brain are involved in both physiological and behavioral processes including movement, cognition, executive functions, reward, motivation, and neuroendocrine control. [1] Each pathway is a set of projection neurons, consisting of individual dopaminergic neurons.
The subthalamic nucleus is a diencephalic gray matter portion of the basal ganglia, and the only portion of the ganglia that produces an excitatory neurotransmitter, glutamate. The role of the subthalamic nucleus is to stimulate the SNr-GPi complex and it is part of the indirect pathway. The subthalamic nucleus receives inhibitory input from ...
The mesolimbic pathway, sometimes referred to as the reward pathway, is a dopaminergic pathway in the brain. [ 1 ] The pathway connects the ventral tegmental area in the midbrain to the ventral striatum of the basal ganglia in the forebrain. The ventral striatum includes the nucleus accumbens and the olfactory tubercle.
The striatum (pl.: striata) or corpus striatum [5] is a cluster of interconnected nuclei that make up the largest structure of the subcortical basal ganglia. [6] The striatum is a critical component of the motor and reward systems; receives glutamatergic and dopaminergic inputs from different sources; and serves as the primary input to the rest of the basal ganglia.
The nucleus basalis is the main neuromodulator of the basal forebrain and gives widespread cholinergic projections to the neocortex. [3] [1] The nucleus basalis is an essential part of the neuromodulatory system that controls behaviour by regulating arousal and attention. [1] The nucleus basalis is also seen to be a critical node in the memory ...
The nucleus accumbens and the ventral tegmental area are the primary sites where addictive drugs act. The following are commonly considered to be addictive: cocaine, alcohol, opioids, nicotine, cannabinoids, and amphetamine and its analogs. These drugs alter the neuromodulatory influence of dopamine on the processing of reinforcement signals by ...