automatism
automatism. Method of producing paintings or drawings (or writing or other work) in which the artist suppresses conscious control over the movements of the hand, allowing the unconscious mind to take over; more broadly, the term can be applied to working procedures that embrace chance, improvisation, and free association. Automatism is mainly a modern phenomenon, but it has various precedents, most notably the ‘blot drawings’ of Alexander
Cozens, who stimulated his imagination by using accidental blots on the paper to suggest landscape forms. Cozens remarks that
Leonardo da Vinci had proposed a similar method and quotes him as saying: ‘If you look upon an old wall covered with dirt, or the odd appearance of some streaked stones, you may discover several things like landscapes, battles, clouds, uncommon attitudes, humorous faces, draperies, &c. Out of this confused mass of objects, the mind will be furnished with abundance of designs and subjects perfectly new.’ Slightly before Leonardo, Leon Battista
Alberti (in his treatise
De statua,
c.1460) gives an imaginative account of the origins of sculpture, describing ancient peoples observing ‘in tree trunks, clumps of earth, or other objects of this sort, certain outlines which through some slight changes could be made to resemble a natural shape’. Alberti's version of events may be not far from the truth, for scholars of prehistoric art have found examples of such spontaneous discovery of representational images in chance natural formations of cave walls.
In its fully developed form, however, automatism did not appear until the 20th century. The
Dadaists made some use of the idea, but they were more interested in chance effects than in automatism as such, and it was the
Surrealists who first made automatism an important part of their creative outlook; whereas the Dadaists used the idea dispassionately, to the Surrealists exploration of the unconscious through such methods was deeply personal. They devised various means to facilitate automatism (see
decalcomania and
frottage, for example) and some of them regarded the use of dream imagery (as in the work of
Dalí) as a kind of psychological—as opposed to mechanical—automatism. The Surrealist interest in automatism had a strong influence on the
Abstract Expressionists, some of whom took their ideas further. With Surrealists, once an image had been formed by automatic or chance means, it was often exploited deliberately with fully conscious purpose, but with
Action Painters such as Jackson
Pollock, automatism in principal permeated the whole creative process.
Other types of automatism are those in which the artist works under the influence of drugs or by alleged occult means. The offbeat British painter Austin Spare (1886–1956) claimed to be able to conjure up horrific survivals of man's pre-human ancestry from deep within his mind, but more usually the artist is said to work under the inspiration of a beneficent spirit guide (a notion not necessarily to be taken lightly, as no less an artist than William
Blake claimed to have direct inspiration from his dead brother). Unlike Blake, most psychic artists of this kind have no particular artistic gifts or inclinations in their ‘normal’ life.
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Auxin signaling in Arabidopsis leaf vascular development
Magazine article from: Plant Physiology; 3/1/2003; ; 700+ words
; Auxin Signaling in Arabidopsis Leaf Vascular Development1 A number of observations have implicated auxin in the formation of vascular tissues in plant...vascular strand formation in response to local auxin application, the effects of impaired auxin...
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Auxin Receptor Hides in Plain Sight
Magazine article from: The Scientist; 5/1/2007; ; 700+ words
; ...by a small molecule such as auxin. "The mechanism is novel...organism," says Estelle. Auxin's mode of control of gene...expression is elusive, and synthetic auxins are used as selective herbicides...Breaking an Animal Paradigm "The auxin story has been very difficult...
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Auxin Responsiveness of a Novel Cytochrome P450 in Rice Coleoptiles1
Magazine article from: Plant Physiology; 12/1/2003; ; 700+ words
; An early auxin-induced gene was isolated from rice...indole-3-acetic acid. This induction by auxin could not be suppressed by cycloheximide. Depletion of segments from endogenous auxin reduced the amount of CYP87A3 transcripts...
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Auxin acts in xylem-associated or medullary cells to mediate apical dominance
Magazine article from: Plant Cell; 2/1/2003; ; 700+ words
; A role for auxin in the regulation of shoot branching was...which proposes that apically derived auxin is transported basipetally directly into...observations in several species have shown that auxin does not enter axillary buds directly...
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Auxin-Dependent Cell Division and Cell Elongation. 1-Naphthaleneacetic Acid and 2,4-Dichlorophenoxyacetic Acid Activate Different Pathways1
Magazine article from: Plant Physiology; 3/1/2005; ; 700+ words
; ...of any exogenous auxin. The data are discussed...the two different auxins activate two different...differentiation. Auxins control several fundamental...physiological responses to auxin, the primary steps...cell division to auxin has been shown recently...2002). Different auxins ...
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Auxin Dynamics after Decapitation Are Not Correlated with the Initial Growth of Axillary Buds1
Magazine article from: Plant Physiology; 7/1/2005; ; 700+ words
; ...roles identified for the plant hormone auxin is the mediation of apical dominance...decapitated plants. We have tested whether auxin inhibits the initial stage of bud release...rigorous examination of the dynamics of auxin level, auxin transport, and axillary...
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Auxin and ethylene response interactions during Arabidopsis root hair development dissected by auxin influx modulators
Magazine article from: Plant Physiology; 12/1/2002; ; 700+ words
; The plant hormones auxin and ethylene have been shown to play important...development. However, cross talk between auxin and ethylene makes it difficult to understand...ethylene-insensitive mutant ein2-1, and auxin influx mutants auxl-7, auxl-22...
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Auxin Regulates Arabidopsis Anther Dehiscence, Pollen Maturation, and Filament Elongation(W)
Magazine article from: Plant Cell; 7/1/2008; ; 700+ words
; ...localization, synthesis, transport, and effects of auxin on the processes occurring late in Arabidopsis...preanthesis filament elongation. Expression of auxin-sensitive reporter constructs suggests that auxin effects begin in anthers between the end of...
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AUXIN RESPONSE FACTOR7 Restores the Expression of Auxin-Responsive Genes in Mutant Arabidopsis Leaf Mesophyll Protoplasts(W)
Magazine article from: Plant Cell; 7/1/2005; ; 700+ words
; AUXIN RESPONSE FACTOR? (ARF7) is one of five ARF transcriptional...activators in Arabidopsis thaliana that is proposed to regulate auxin-responsive expression of genes containing TGTCTC auxin response elements in their promoters. An Arabidopsis mutant...
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Auxin and cytokinin have opposite effects on amyloplast development and the expression of starch synthesis genes in cultured bright yellow-2 tobacco cells
Magazine article from: Plant Physiology; 10/1/1999; ; 700+ words
; Auxin and Cytokinin Have Opposite Effects on Amyloplast...Nicotiana tabacum) cells, the depletion of auxin (2,4-dichlorophenoxyacetic acid) in...changes in plastid morphology. The effects of auxin and cytokinin on amyloplast development were...
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auxin
Book article from: The Columbia Encyclopedia, Sixth Edition
auxin , plant hormone that...direction of plant growth. Auxins include both naturally...naturally, and synthetic auxins (e.g., 2,4...different amounts of auxins, a fact used to advantage...The principal natural auxin is indoleacetic acid...
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auxin-binding protein
Book article from: A Dictionary of Biology
auxin-binding protein A protein found in plant cells that binds auxins and thus may act as the initial receptor...cells. According to one model, auxin stimulates the cell by binding to an auxin-binding protein (ABP) on the...
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Hormones, Plant
Book article from: Biology
...pathways are available. Because auxins can have an effect in very low...regulate synthesis and disassembly of auxin very precisely. Auxins are produced in young shoots and...root. This polar movement of auxin is not well understood but requires...
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Hormones
Book article from: Plant Sciences
...hormones discovered were the auxins. (The term auxin is derived from a Greek...base. This polarity of auxin movement was an inherent...Other less-investigated auxins include phenyl-acetic...long used as a synthetic auxin but found to exist in...
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Phototropism
Encyclopedia entry from: The Gale Encyclopedia of Science
...diffused into the agar blocks and he named this substance auxin. The auxin that Went studied was subsequently identified by chemists...phototropism, the Cholodny-Went theory proposes that (a) auxin is synthesized in the coleoptile tip; (b) the coleoptile...
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