Related by context. Frequent words. (Click for all words.) 44 neural 39 brains 38 neuroscientists 38 brain 37 plasticity 36 neuron 36 synaptic 35 Brain 35 physiologically 35 stimuli 35 metabolic 35 mice 34 cognitive 34 neuroscientist 34 circuitry 34 cognition 34 neurons 34 neuronal 33 overactive 33 induced 33 synapses 33 olfactory 33 brain scans 32 cortical 32 auditory 32 rats 31 perceptual 31 dopamine 31 sleep deprived 31 physiological 31 fMRI 30 neurological 30 zaps 30 cortex 30 physiology 30 stimulated 30 synapse 30 amygdala 30 prefrontal cortex 29 nerve cells 29 serotonin 29 cognitive abilities 29 brainpower 29 imaging fMRI 28 short circuited 28 cognitively 28 hypothalamus 28 functional magnetic resonance 28 insula 28 neural networks 28 monkeys 28 innate 28 glucose metabolism 27 sensory 27 cerebral 27 metabolism 27 nerve endings 27 brainstem 27 brained 27 cochlea 27 ovaries 27 intuition 27 testes 27 inhibited 27 self destructed 27 control 27 zapped 27 mitochondria 26 cerebral cortex 26 cognitive functioning 26 motor neurons 26 controllable 26 sexual arousal 26 reprogram 26 retinas 26 blinded 25 cognitive functions 25 controlling 25 ventricles 25 short circuiting 25 stress hormones 25 zap 25 optic nerve 25 insides 25 haywire 25 circadian rhythms 25 fatty tissue 25 manipulate 24 boffins 24 cleverer 24 cognitive function 24 self destruct 24 muscle tissue 24 retina 24 blunted 24 anatomy 24 psyches 24 compromised 24 accurately predict 23 cerebellum 23 hippocampus