Why Do We Dream?
來源: https://theconversation.com
Although science knows what dreams are, it is still not known exactly why we dream, although plenty of theories exist.
關(guān)于 “夢是什么”攒至，已經(jīng)有了科學(xué)的解釋存哲。然而壹罚，盡管有很多猜想嗡官，科學(xué)至今無法解釋人為什么會(huì)做夢恋日。
It is generally assumed that dreams only occur during rapid eye movement (REM) sleep. This is when the brain appears to be in an active state but the individual is asleep and in a state of paralysis.
常見的假說是吞获，只有快速眼動(dòng)（REM）睡眠期間才會(huì)做夢。這時(shí)谚鄙，人體處于睡眠狀態(tài)各拷，無法感知外界信息，但大腦卻處于活動(dòng)狀態(tài)闷营。
But studies have shown that they can also happen outside of REM.
然而烤黍，研究表明，非快速眼動(dòng)睡眠期也可能會(huì)做夢傻盟。
Research from sleep studies shows that REM-related dreams tend to be more fantastical, more colorful and vivid whereas non-REM dreams are more concrete and usually characterized in black and white.
有關(guān)睡眠的研究表明速蕊，快速眼動(dòng)睡眠期間做的夢往往更夢幻生動(dòng)，多姿多彩娘赴。相對的规哲，非快速眼動(dòng)睡眠期間做的夢則更具體，通常是黑白的诽表。
Recent studies on dreaming show that during a dream (and in particular a REM-related dream) the emotional center of the brain is highly active whereas the logical rational center of the brain is slowed.
有關(guān)夢的最新研究表明唉锌，做夢（尤其是快速眼動(dòng)睡眠期間做的夢）時(shí)，大腦的情感中樞高度活躍竿奏，而理性中樞卻恰恰相反袄简。
This can help explain why these dreams are more emotive and surreal.
這能解釋為什么快速眼動(dòng)睡眠期間做的夢更加情緒化且脫離現(xiàn)實(shí)。
Evolutionary theory suggests the purpose of dreams is to learn, in a safe way, how to deal with challenging or threatening situations.
進(jìn)化論認(rèn)為泛啸，做夢的目的是以一種安全的方式學(xué)習(xí)如何應(yīng)對有挑戰(zhàn)性或危險(xiǎn)性的局面绿语。
Whereas the "memory consolidation" theory suggests that dreams are a byproduct of reorganizing memory in response to what has been learned throughout the day.
而 “記憶鞏固” 理論表明，夢是大腦重組記憶的過程中產(chǎn)生的一種 “副產(chǎn)品”候址，是對這一天發(fā)生的事情的一種反饋吕粹。
Both theories have at least one thing in common — during times of stress and anxiety we either dream more or remember our dreams more often, as a way of coping with challenging circumstances and new information.
這兩種理論至少有一個(gè)共識(shí)——有壓力和焦慮時(shí)，我們做夢的頻率更高岗仑，或是更能記住所做的夢匹耕，這是一種應(yīng)對挑戰(zhàn)性環(huán)境和新信息的方式。
