Related by context. Frequent words. (Click for all words.) 50 stimuli 45 arousal 45 BDNF 45 Pavlovian 45 stimulation 45 reactivity 45 inhibition 44 maladaptive 43 inhibitory 43 affective 43 amygdala 42 behaviors 42 vasopressin 42 dissociation 42 nucleus accumbens 42 cognitive behavioral 42 dopamine 42 endorphin 42 unpleasant 42 dopaminergic 41 oxytocin 41 stressful situations 41 cognitive behavioral therapy 41 visual stimuli 41 pharmacologic 41 external stimuli 41 adenosine 41 neurochemical 40 glucocorticoid 40 cortisol 40 glutamate 40 excitation 40 histamine 40 induces 40 overactive 40 undesired 40 ghrelin 40 somatic 40 physiologically 40 auditory 39 pharmacologically 39 physiological responses 39 nicotine 39 repetitive behaviors 39 Cortisol 39 cognitive 39 cognitive deficits 39 pleasurable 39 dopamine neurons 39 sexual arousal 39 phenotype 39 stressor 39 pheromones 39 mimetic 39 sensory 38 serotonin 38 destructive behaviors 38 pharmacological 38 neuronal activity 38 stress hormone cortisol 38 reflex 38 muscle contractions 38 norepinephrine 38 behaviorally 38 secretion 38 Oxytocin 38 mental alertness 38 stress hormones 38 excitability 38 behavioral 38 ADHD symptoms 38 positive reinforcement 37 acetylcholine 37 endogenous 37 physiological 37 impulsivity 37 striatum 37 airway inflammation 37 physiologic 37 hyperventilation 37 neural 37 neurotransmitter 37 stimulatory 37 irritability 37 synapses 37 kinesthetic 37 reflexive 37 hypoglycemic 37 sensory input 37 synaptic 37 cognition 37 perceptual 37 addictive 36 receptors 36 unconsciously 36 neuron 36 transiently 36 induce 36 neurogenesis 36 autonomic nervous system 36 desensitizing