? ?2018年圣誕假結(jié)束了,2019是個(gè)全新的開始,我們也回歸到了學(xué)校生活中來(lái)。
? ?這一周一直在讀之前落下的I of the Vortex悍抑,陸陸續(xù)續(xù)做了一些筆記和思考鳄炉,就貼在這篇文章里吧杜耙。
? ?2019/1/7--------------------------
? ?其實(shí)“用行動(dòng)迭代思想”這句話有其深刻的neural basis lolll。用predictive processing theory的idea來(lái)看拂盯,這句話是在說(shuō) – 用movement探索external world從而進(jìn)行statistical sampling佑女,從而update我們大腦對(duì)于世界的internal representation。這個(gè)process可以說(shuō)是一個(gè)bidirectional的iterative process谈竿。
? ?2019/1/8---------------------------
? ??越讀I of the Vortex越覺(jué)得這本封面設(shè)計(jì)品味奇葩也沒(méi)什么名氣的書處處充滿了深邃的思想团驱,觸及了很多neuroscience的底層邏輯。我發(fā)現(xiàn)越學(xué)neuroscience空凸,越對(duì)這些fundamental的ideas感到無(wú)比的敬畏與好奇嚎花。這本書的ideas感覺(jué)和 predictive processing有不少相關(guān)性(可能這種說(shuō)法不準(zhǔn)確)。
????摘錄書第六章的一段話:“The nature of brain… is, as stated repeatedly, a reality simulator… In other words,?brain activity is a metaphor for everything else. Comforting or disturbing, the fact is that we are basically dreaming machines that construct virtual models of the real world.”
????不過(guò)當(dāng)然呀洲,這本書說(shuō)的model沒(méi)有涉及到predictive coding描述的那種model的constant反饋機(jī)制紊选。個(gè)人感覺(jué)后者是更完整的描述。另外道逗,這一章所強(qiáng)調(diào)的自然演化的隨機(jī)性以及能夠在時(shí)間足夠長(zhǎng)兵罢,迭代次數(shù)足夠多的情況下生成最適合生存的模型的能力,體現(xiàn)了一種神秘又深邃的宇宙之美(對(duì)不起我詞窮了)滓窍。如果要硬扯心靈雞湯的話:隨即碰撞的次數(shù)夠多卖词,你夠persistent,越大可能找到最優(yōu)的solution吏夯。
????“Nature does not design, yet spectacular things happen.” 當(dāng)然此蜈,接受這本書觀點(diǎn)的同時(shí)即横,或許也在潛移默化間接受了mind是purely biological的這一觀念。但真的是這樣嗎裆赵?
????再摘錄一段自己感覺(jué)很帶感的話:
????“The smell of the forest is an internal abstraction that does not exist as an external geometry…language is an eye, but an abstract one, an internal abstraction.”
????2019/1/11---------------------------
? ??IoV上一章探究了consciousness究竟是什么令境。 Astonishingly reductionistic… 非常不philosophical。在Llinas眼里顾瞪,consciousness其實(shí)是biological entities in complex systems中用來(lái)做decisions的solution舔庶,然后:
????Thalamocortical system allows extremely complex connections and networks of the thalamic nuclei between one another and with all aspects of the cortex。是temporal coherence的理想agent陈醒。而“This temporally coherent event that binds, in the time domain, the fractured components of external and internal reality into a single construct is what we call the ‘self’.”
????新的一章講了Fixed Action Patterns這一概念惕橙,但我對(duì)emotions和language是premotor FAP有疑慮:不知道我理解得全不全面,但我覺(jué)得作者說(shuō)的FAP似乎是指the (motor) manifestations of responses that we commonly categorize as “emotions.” But what is the true essence of emotions? Could that be no more than a mind’s conceptual construct? How do we reconcile this theory with other ones?
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? ? 這本書還有兩章就看完了钉跷。今天的第十章弥鹦, “Qualia from a Neuronal Point of View”,在我看來(lái)提出了非常有趣的關(guān)于qualia的思考爷辙。我很高興這本書在談及意識(shí)時(shí)沒(méi)有避開David Chalmers的 “The Hard Problem”彬坏。
????我覺(jué)得作者提出的qualia本質(zhì)上是一種FAP… “produced by activation from stimuli of the external world via our sensory system, by direct, experimental electrical (or chemical) stimulation of various areas of the brain…”很有意思。不同于我們一般對(duì)于qualia的看法膝晾,即它是心智最高級(jí)的一種現(xiàn)象(很可能是一種顯現(xiàn)性質(zhì))栓始,作者試圖說(shuō)服我們相信qualia其實(shí)是一種最本源的存在… “that [which] must arise from, fundamentally, properties of single cells.”
????在我看來(lái),他的idea很顛覆血当,但也并不能說(shuō)服我(或許是我沒(méi)能完全理解這本書吧)幻赚。他用Penfield用artificial的電流激活/麻痹somatosensory area從而讓被試者產(chǎn)生sensations的例子來(lái)論證qualia和neuronal electrical patterns of activity,總讓我感覺(jué)怪怪的臊旭。那種簡(jiǎn)單的落恼,fractionalized的sensations并不等同于qualia吧。
????不過(guò)書中的觀點(diǎn)仍然非常有趣离熏,有趣到我在學(xué)校的吊床上佳谦,細(xì)細(xì)簌簌的雨里讀了一個(gè)半小時(shí)。滋戳。钻蔑。這本書第一遍大概是不能全讀懂的。
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