{"id":1800,"date":"2019-02-18T11:26:07","date_gmt":"2019-02-18T11:26:07","guid":{"rendered":"https:\/\/estetiskefagene.wordpress.com\/?p=1800"},"modified":"2019-02-18T11:26:07","modified_gmt":"2019-02-18T11:26:07","slug":"purkinje-series-2015-2019","status":"publish","type":"post","link":"https:\/\/estetiskefag.usn.no\/?p=1800","title":{"rendered":"Purkinje Series (2015-2019)"},"content":{"rendered":"\n

Made by Marte S\u00f8reb\u00f8 Gulliksen<\/strong>,\nProfessor in Culture education and aesthetic practice, University of\nSoutheastern Norway, Department of visual and performing arts education.<\/p>\n\n\n

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The Purkinje Series <\/em>is a series of bowls made by\nGulliksen in the period 2015 (Purkinje #1) to 2018 (Purkinje #2-5). The\nmaterial is aspen wood, harvested from trees felled at her family’s\nsmall farm Guvihaug in Sauherad,\nTelemark, Norway. The bowls are\ncarved in Notodden and Oslo, Norway. From\ntimber to finished bowl, only hand tools are used.<\/p>\n\n\n

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The\nbowls has a cut finish. They are sealed with sanding\nsealer and white pigmented wax. The bowls themselves are decorated with\nmetal leafs. This presentation features four bowls:<\/p>\n\n\n

Purkinje #2: 46cm x 17cm x 6cm<\/p>\n\n\n

Purkinje #3: 44cm x 12cm x 6cm<\/p>\n\n\n

Purkinje #4: 88cm x 19cm x 7cm<\/p>\n\n\n

Purkinje #5: 38cm x 11cm x 5cm<\/p>\n\n\n


\nScroll down for more images. IPR belongs to Marte S. Gulliksen.  <\/p>\n\n\n

Carving and visualizing\nthree-dimensional form <\/strong><\/p>\n\n\n

Visualizing three-dimensional form and rotate it mentally, is a core\nskill for carving in wood. It is tightly connected\nto prior sensory experience with physical objects, memory and ideation. It is\nan important skill in abstract thinking, like mathematics and physics, as well\nas a basic skill necessary in humans’ everyday interaction and experience. In\nthe period Gulliksen worked with these bowls (#2-#5), she temporarily lost that\nability due to a growing tumor in the brain. After surgery, she regained the\nability again. This experience of losing a core mental ability is useful for\nexperiencing underlying limitations in how three-dimensional forms are understood and visualized. The knowledge thus gained\ncould be useful for learning sciences, and the practice of teaching in schools.\nA future article exploring this case in an educational context is planned,\nfollowing the theoretical foundation mapped out in the article Making\nMatters?<\/a> Read more about the\narticle at the blog «Estetiske fag Universitetet\ni S\u00f8r\u00f8st-Norge»<\/a><\/p>\n\n\n

Purkinje cells in the\nCerebellum<\/strong><\/p>\n\n\n

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The shape of the bowls are inspired by a certain type of nerve cells,\nthe Purkinje cells. These cells exist in the\nCerebellum, known by their intricate dendritic arbor. Gulliksen has taken\nartistic liberty with the arbor as well as allowing the dendrites to spread out\nin three dimensions, crossing each other, over and under. This allowed for\nexploring three-dimensional forms, the aspen woods limitations, and her own\nwood carving skills. <\/p>\n\n\n

On Purkinje cells in Purves et.al. 2012, p.425:<\/p>\n\n\n

\u00abThe Purkinje cells present the most striking histological feature of\nthe cerebellum. Elaborate dendrites extend into the molecular\nlayer from a single subjacent layer of these giant nerve cell bodies (called\nthe Purkinje layer; Figure 19.8B) Once in the molecular layer the Purkinje cell\ndendrites branch extensively in a plane at right angles to the trajectory of\nthe parallel fibers (Figure 19.9A), and each parallel fiber can\ncontact a very large number of Purkinje cells (on the order of tens of\nthousands). The Purkinje cells also receive a direct modulatory input on\ntheir dendritic shafts form the climbing fibers, all of which arise in the\ninferior olive. [\u2026]\u201d<\/em><\/p>\n\n\n

\u201cThe Purkinje cells project in turn to the deep cerebellar nuclei. They\nare the only output cells of the cerebellar cortex.\u201d<\/em><\/p>\n\n\n

Purkinje cell illustration retreived from http:\/\/bridgeblog.scientopia.org\/wp-content\/uploads\/sites\/34\/2011\/09\/512px-PurkinjeCell.jpg<\/a> 28.11.2018 <\/p>\n\n\n


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Aspen wood<\/strong><\/p>\n\n\n

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Aspen, Populus<\/em> tremula,<\/em> is\na three in the poplar family, often referred to as quaking aspen for the sound\nit makes in slight breezes. It is known by its white, even\nwood, that can glimmer like mother of pearl when it is cut with sharp tools.\nWhen the aspen tree grows, it brings nutrients from the soil up through the\nfibers, and sand can be found up in the three crown.\nThe white wood is sometimes stained brown or grey by this process. The sand and\nnutrients in the wood makes the tools dull, and demands that they are sharpened often. As green wood, aspen is relatively soft\nto carve.<\/p>\n\n\n

Purkinje #2: 46cm x 17cm x\n6cm<\/strong><\/p>\n\n\n