The individuals who don't have the foggiest idea about the historical backdrop of their field are bound to rehash its o

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PHILOSOPHY(600BC?present). BIOLOGY(15th century ?present). PSYCHOLOGY(2nd half of nineteenth century ?present). . . PRE-GREEK ZEITGEIST People watched shifts of rhythms: day and night, seasons, starvations, and so forth. Mindfulness and review of dreams: pictures of dead individuals, creatures, composites. Worries about the way of things, - Cosmologies conceived as clarifications. Inspiration for cosmolog

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The individuals who don't have a clue about the historical backdrop of their field are destined to rehash its slip-ups (Santayana)

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PHILOSOPHY (600BC present) BIOLOGY (fifteenth century present) PSYCHOLOGY (second 50% of nineteenth century present)

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PRE-GREEK ZEITGEIST People watched rotations of rhythms: day and night, seasons, starvations, and so on. Mindfulness and review of dreams: pictures of dead individuals, creatures, composites. Worries about the way of things, - Cosmologies concocted as clarifications. Inspiration for cosmologies was not logical, e.g., anticipating shrouds, dry spells, and so forth. That was building, not science. Cosmologists figured speculations about the essential units of things: - water, fire, air, earth, numbers. Pythagoras is an outstanding case. He trusted that numbers held the mystery of everything.

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REDUCTIONISM Democritus was the principal cosmologist to endeavor to clarify things by reductionism . In around 400 BC, Democritus proposed that molecules were the essential unit of all matter and that there were two sorts of particles: - body iotas (dormant) - soul iotas (key substance) Democritus is likewise credited with presenting the mind-body qualification .

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DYNAMIC VS. Social COSMOLOGIES: Dynamic ( Heraclitus): Things are dependably in flux. Consciousness is never the same at progressive purposes of time. - A fundamental issue for all sciences: how do static units change after some time? Social (Anaxagoras): It is not important to discuss basic units without determining their association . The entire is more prominent than the whole of its parts .

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REACTIONS TO COSMOLOGIES How would we think about reality? - Through faculties? - Are the faculties reliable? Epistemology: What is t he nature of learning? Sophists: There is no total information . We just recognize what our faculties let us know.

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Plato (Socrates?) & Aristotle Plato: Rejected relativism of Sophists and honed the mind-body qualification: Reason supplements what we realize through sense organs and capacities freely of the faculties. The capacity of the spirit is to secure perfect information of the world through reason, to give a method for going past the blemished information of the faculties and for characterizing the universals of magnificence, goodness, science, and so forth (cf. Descartes, Kant, Chomsky ). Aristotle: Defined the empiristic perspective [ clean slate ]. He didn't acknowledge the universals of information that Plato hypothesized .

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Aristotle (384 - 322 BC) Mind ought to be deciphered, not as a thing, but rather as a procedure. Maybe he would want to state "minding" as a verb instead of "mind" as a thing. Trusted that Mind was in the heart.

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GREEK HERITAGE Dualism: mind versus body: What is the way of every substance? How do they cooperate? fundamental question of current behavioral and subjective psychology. Realism versus Vision: Materialists: everything is reducible to some physical element. Visionaries: thoughts exist freely of any material substance (Descartes, Kant, Chomsky) Nativism versus Induction: Nativists: Knowledge exists freely of involvement (learning might be material, e.g., mind states as hypothesized by modern speculations of in neuroscience). Empiricists: Knowledge gets for a fact. The empiricist view characterizes a fundamental question in the investigation of dialect, protest recognition, and so on. Behaviorists respect the idea of clean slate as basic.

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SCIENCE versus Building

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The Reflex Arc Rene Descartes ( 1596-1650)

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The Reflex

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Descartes Postulated two sorts of substance: 1. Material (body) expanded substance: Occupies Newtonian space. 2. Soul (considering) unextended matter: Does not possess Newtonian space. - Thinking matter, remarkable to man, is the seat of natural thoughts. - Body and soul associate in the pineal organ (however don't dwell there). -Animals, who have no souls are negligible machines: mechanical robot-like animals. Two Cartesian legacies: -mechanical activity (reflexes) - present day perspective of intrinsic thoughts - grabbed by Kant & Chomsky.

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CONCEPT OF REFLEX CONCEPT OF THE Reflex: A relationship between's a jolt and a reaction . The boost discharges the reaction, as pulling a trigger shoot a projectile . * Animal spirits : streamed in empty tubes from sense organ to muscles. * Glisson: Disproved the theory of creature spirits by demonstrating that extracted muscle tissue contracts when empowered (in a dish of saline arrangement). These investigations offered ascend to the idea of i rritability and edginess . *Concept of " Spinal personality ": proposed by aftereffects of trial on the greatness of the flexion reflex in frogs whose spinal line were separated ("spinal arrangement") * Pflüger: Inferred spinal personality in view of changeability in the size of flexion reflex. * Magnus: Showed that fluctuation was because of uncontrolled moves in stance.

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JOHN LOCKE * Emphasized the essential part of experience: (1690 Essay Concerning Human Uunderstanding.) *Resurrected Aristotle's idea of clean slate . *How does clean slate get inspired? *Introduced thoughts as the fundamental unit of the psyche and the idea of mental science : how straightforward and complex thoughts communicate .

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Mental Chemistry Simple thoughts ( sensations ). Complex thoughts ( reflection, thought, observation ). Thoughts can have both of the accompanying qualities: - Primary qualities : quantitative properties of a protest (e.g., mass, movement, temperature, and so on) - Secondary qualities: in the "eye" of the viewer (subjective contrasts: hues, sounds, tastes, and so forth)

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British School of Empiricism Berkely: asserted that all thoughts were auxiliary in nature. God safeguards security of world since He has essential thoughts. Hume: Doubted presence of psyche and God. The sum total of what we have is an accumulation of thoughts. What we should find are the standards of relationship of those thoughts (Aristotle), Hume proposed as standards of relationship (after Aristotle): similarity, contiguity, and circumstances and end results (fleeting progression). Hartley: Placed thoughts in sensory system and guessed that they obey Newtonian laws. James Mill: All thoughts are reducible to basic tangible components.

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Ronald Knox: There was a young fellow who stated, God must think it exceedingly odd on the off chance that he finds that this tree continues to be when there is no one about in the Quad. Answer: Dear Sir: Your shock's odd: I am constantly about in the Quad and that is the reason the tree will keep on being since seen by Yours dependably, God

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RELEVANT DEVELOPMENTS IN BIOLOGY * Reflexology *Sensory physiology *Theory of advancement

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SENSORY PSYCHOLOGY Developed out of antiquated worry to comprehend faculties. Learning of tangible brain research was encouraged by: - assumption that the body obeyed mechanical laws. - advances in determination of the magnifying instrument. - the disclosure of nerves Bell and Megendie : Discovered autonomously the contrast between tangible (dorsal) and engine (ventral) nerves. Müller: what number sorts of tactile nerves are there? Law of Specific Nerve Energies. Helmholtz: Hypothesized particular nerve energies for essential hues - red, green, blue. Bother: Phrenology.

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TABLE OF SENSATONS eye 32,820 ear ? nose 4 tongue 4 skin 2 muscle 1 tendon 1 joint 3 alimentary waterway ? veins 1? lungs 1 sex organs 1 ear (static sense) 1 - Total: 44,435 (From E. B. Titchener "An Outline of Psychology" , NY: Macmillan, 1896 pp. 74-75.

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PSYCHOPHYSICS Sensory analysts frequently requested that subjects make judgments. This offered ascend to different scientific speculations about tangible capacity. Weber's Law: ∆I/I = K [DIFFERENCE THRESHOLD] I = Physical extent of boost ∆I = Physical size of progress expected to create a simply perceptible contrast ( jnd ) K = consistent Fechner's Law: S = Klog I S = Subjective greatness of jolt I = Physical size of boost K = steady Stevens Law: S = KI n S = Subjective size of boost n = type whose esteem fluctuates with sense modality K = consistent I = Physical size of jolt

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Theory Of Evolution Three perspectives important to brain science: - Variation - Continuity of Structure - Functionalism Charles Darwin

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"We have seen … [that] man bears in his substantial structures clear hints of his plunge from some lower shape; however it might be asked that, as man varies so incredibly in his mental power from every other creature, there must be some mistake in this conclusion....It can be demonstrated [that] there is no key distinction of this kind. We should likewise concede that there is a substantially more extensive interim in mental power between one of the most minimal fishes, as a lamprey or lancelet, and one of the higher chimps, than between a gorilla and man; yet this interim is topped off by countless degrees. " (Darwin, 1871/1982a, p. 445 )

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VARIATION Charles Darwin and his supporter Herbert Spencer , contended that the rationale of variety and determination additionally connected to conduct. Take note of the comparability as for the rationale of fortification hypothesis. Galton: Observed that scholarly capacity fluctuated between people (similarly as auxiliary components change). - Asked by what means can variety of scholarly capacity be measured? - Argued for tactile capacity as a meas

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