闻香识主人：嗅觉记忆能触发动物喜怒哀乐
<p><span word="If">If</span> <span word="your">your</span> <span word="dog">dog</span> <span word="looks">looks</span> <span word="pleased">pleased</span> <span word="to">to</span> <span word="see">see</span> <span word="you">you</span> – <span word="it">it</span> <span word="is">is</span> <span word="probably">probably</span> <span word="because">because</span> <span word="it">it</span> <span word="loves">loves</span> <span word="the">the</span> <span word="particular">particular</span> <span word="way">way</span> <span word="you">you</span> <span word="smell">smell</span>.</p><p><span word="The">The</span> <span word="odour">odour</span> <span word="of">of</span> <span word="a">a</span> <span word="familiar">familiar</span> <span word="human">human</span> <span word="apparently">apparently</span> <span word="lingers">lingers</span> <span word="like">like</span> <span word="perfume">perfume</span> <span word="in">in</span> <span word="the">the</span> <span word="animal">animal</span>’<span word="s">s</span> <span word="brain">brain</span> – <span word="where">where</span> <span word="it">it</span> <span word="triggers">triggers</span> <span word="an">an</span> <span word="instinctive">instinctive</span> <span word="emotional">emotional</span> <span word="response">response</span>, <span word="research">research</span> <span word="published">published</span> <span word="yesterday">yesterday</span> <span word="reveals">reveals</span>.</p><p><span word="Our">Our</span> <span word="scent">scent</span> <span word="acts">acts</span> <span word="on">on</span> <span word="a">a</span> <span word="part">part</span> <span word="of">of</span> <span word="the">the</span> <span word="canine">canine</span> <span word="brain">brain</span> <span word="associated">associated</span> <span word="with">with</span> <span word="reward">reward</span> <span word="and">and</span> <span word="the">the</span> <span word="strongest">strongest</span> <span word="reactions">reactions</span> <span word="are">are</span> <span word="produced">produced</span> <span word="by">by</span> <span word="humans">humans</span> <span word="that">that</span> <span word="pets">pets</span> <span word="know">know</span> <span word="best">best</span>, <span word="say">say</span> <span word="scientists">scientists</span> <span word="in">in</span> <span word="America">America</span>.</p><p><span word="Gregory">Gregory</span> <span word="Berns">Berns</span>, <span word="of">of</span> <span word="Emory">Emory</span> <span word="University">University</span> <span word="in">in</span> <span word="Atlanta">Atlanta</span>, <span word="said">said</span>: ‘<span word="While">While</span> <span word="we">we</span> <span word="might">might</span> <span word="expect">expect</span> <span word="that">that</span> <span word="dogs">dogs</span> <span word="should">should</span> <span word="be">be</span> <span word="highly">highly</span> <span word="tuned">tuned</span> <span word="to">to</span> <span word="the">the</span> <span word="smell">smell</span> <span word="of">of</span> <span word="other">other</span> <span word="dogs">dogs</span>, <span word="it">it</span> <span word="seems">seems</span> <span word="that">that</span> <span word="the">the</span> “<span word="reward">reward</span> <span word="response">response</span>” <span word="is">is</span> <span word="reserved">reserved</span> <span word="for">for</span> <span word="their">their</span> <span word="humans">humans</span>.</p><p>'<span word="When">When</span> <span word="humans">humans</span> <span word="smell">smell</span> <span word="the">the</span> <span word="perfume">perfume</span> <span word="or">or</span> <span word="cologne">cologne</span> <span word="of">of</span> <span word="someone">someone</span> <span word="they">they</span> <span word="love">love</span>, <span word="they">they</span> <span word="may">may</span> <span word="have">have</span> <span word="an">an</span> <span word="immediate">immediate</span>, <span word="emotional">emotional</span> <span word="reaction">reaction</span> <span word="that">that</span>'<span word="s">s</span> <span word="not">not</span> <span word="necessarily">necessarily</span> <span word="cognitive">cognitive</span>.</p><p>'<span word="Our">Our</span> <span word="experiment">experiment</span> <span word="may">may</span> <span word="be">be</span> <span word="showing">showing</span> <span word="the">the</span> <span word="same">same</span> <span word="process">process</span> <span word="in">in</span> <span word="dogs">dogs</span>. <span word="But">But</span> <span word="since">since</span> <span word="dogs">dogs</span> <span word="are">are</span> <span word="so">so</span> <span word="much">much</span> <span word="more">more</span> <span word="olfactory">olfactory</span> <span word="than">than</span> <span word="humans">humans</span>, <span word="their">their</span> <span word="responses">responses</span> <span word="would">would</span> <span word="likely">likely</span> <span word="be">be</span> <span word="even">even</span> <span word="more">more</span> <span word="powerful">powerful</span> <span word="than">than</span> <span word="the">the</span> <span word="ones">ones</span> <span word="we">we</span> <span word="might">might</span> <span word="have">have</span>.</p><p>'<span word="It">It</span>'<span word="s">s</span> <span word="one">one</span> <span word="thing">thing</span> <span word="when">when</span> <span word="you">you</span> <span word="come">come</span> <span word="home">home</span> <span word="and">and</span> <span word="your">your</span> <span word="dog">dog</span> <span word="sees">sees</span> <span word="you">you</span> <span word="and">and</span> <span word="jumps">jumps</span> <span word="on">on</span> <span word="you">you</span> <span word="and">and</span> <span word="licks">licks</span> <span word="you">you</span> <span word="and">and</span> <span word="knows">knows</span> <span word="that">that</span> <span word="good">good</span> <span word="things">things</span> <span word="are">are</span> <span word="about">about</span> <span word="to">to</span> <span word="happen">happen</span>.</p><p>'<span word="In">In</span> <span word="our">our</span> <span word="experiment">experiment</span>, <span word="however">however</span>, <span word="the">the</span> <span word="scent">scent</span> <span word="donors">donors</span> <span word="were">were</span> <span word="not">not</span> <span word="physically">physically</span> <span word="present">present</span>.</p><p><span word="Why">Why</span> <span word="do">do</span> <span word="animals">animals</span> <span word="avoid">avoid</span> <span word="pylons">pylons</span>? <span word="Because">Because</span> <span word="they">they</span> <span word="emit">emit</span> <span word="terrifying">terrifying</span> <span word="flashes">flashes</span> <span word="of">of</span> <span word="light">light</span> <span word="that">that</span> <span word="are">are</span> <span word="INVISIBLE">INVISIBLE</span> <span word="to">to</span> <span word="humans">humans</span></p><p><span word="Dolphins">Dolphins</span> <span word="use">use</span> <span word="sponges">sponges</span> <span word="to">to</span> <span word="protect">protect</span> <span word="their">their</span> <span word="sensitive">sensitive</span> <span word="noses">noses</span> <span word="while">while</span> <span word="foraging">foraging</span> <span word="for">for</span> <span word="food">food</span> <span word="on">on</span> <span word="the">the</span> <span word="sea">sea</span> <span word="floor">floor</span></p>
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