Anything blocking dopamine receptor sites can lengthen catatonia

The neurotransmitter dopamine also plays a part.Flour beetles with low dopamine levels play dead more frequently than those with high levels,and anything blocking dopamine receptor sites can lengthen catatonia.But maintaining a death ruse isn’t easy.The performers are constantly gauging their surroundings for cues on when it’s safe to rise.Chickens, for instance, can sense when a predator’s eyes are upon them.Researchers know this because when they used a stuffed hawk in an experiment,their chicken subjects came out of their catatonia quicker when the hawk’s eyes were averted.