Mystifying Puzzle of Early Neolithic House Orientations Finally Solved - SciTechDaily

Aerial photo of the excavation area of an Early Neolithic settlement near Vráble in Slovakia. Credit: © Nils Müller-Scheeßel

Human behavior is influenced by many things, most of which remain unconscious to us. One of these is a phenomenon known among perception psychologists as “pseudo-neglect.” This refers to the observation that healthy people prefer their left visual field to their right and therefore divide a line regularly left of center.

A study published on Friday, January 10, 2020, in the online magazine PLOS ONE now shows for the first time what effect this inconspicuous deviation had in the prehistoric past. A Slovak-German research team has investigated the alignment of early Neolithic houses in Central and Eastern Europe. Scientists of the Collaborative Research Centre (CRC) “Scales of Transformation” of Kiel University (CAU) and the Slovakian Academy of Sciences were able to prove that the orientation of newly built houses deviated by a small amount from that of existing buildings and that this deviation was regularly counterclockwise.

Magnetic plan of an early Neolithic settlement. Each two of the dark lines with a length of 20 to 30 meters represent the part of a house. Credit: © Nils Müller-Scheeßel

Archaeologist Dr. Nils Müller-Scheeßel, who coordinated the study within the CRC, says: “Researchers have long assumed that early Neolithic houses stood for about a generation, i.e. 30 to 40 years, and that new houses had to be built next to existing ones at regular intervals. By means of age determination using the radiocarbon method, we can now show that the new construction was associated with a barely perceptible rotation of the house axis counterclockwise. We see “Pseudoneglect” as the most likely cause of this.”

This insight was made possible by the interpretation of one of the fastest growing archaeological data sets at present, namely the results of geophysical magnetics measurements. Differences in the earth’s magnetic field are used to visualize archaeological features lying underground. Early Neolithic house ground plans belong to the best identifiable types of features.

Preparation for the geophysical survey of an area near Vráble. The measuring device, which is pulled over the ground, records magnetic anomalies below the surface. This makes archaeological features such as house floor plans visible. Credit: © Martin Furholt

“In recent years, we have discovered hundreds of Early Neolithic houses in our field of work in southwestern Slovakia using geophysical prospection methods. Excavating all these houses is neither possible nor desirable for reasons of monument conservation. The possibility of using “Pseudoneglect” to bring the houses into a relative sequence without excavation and thus to break down the settlement activity of an entire small region raises our research to a completely new level,” says Mister Müller-Scheeßel enthusiastically. “Absolute dating using scientific methods must of course confirm the basic trend in every case.”

The study also refers to comparable archaeological observations at other places and times, which show that similar changes in orientation also seem to apply to more recent prehistoric periods. The significance of “Pseudoneglect” thus extends far beyond the dating of early Neolithic houses.

Reference: “A new approach to the temporal significance of house orientations in European Early Neolithic settlements” by Nils Müller-Scheeßel, Johannes Müller, Ivan Cheben, Wiebke Mainusch, Knut Rassmann, Wolfgang Rabbel, Erica Corradini and Martin Furholt, 10 January 2020, PLOS ONE.
DOI: 10.1371/journal.pone.0226082

Pseudoneglect: The natural tendency of shifting spatial attention to the left. The concept was introduced evidenced by experimental findings regarding the line bisection task. In this task, participants shall mark the middle of a horizontal line. On average, their deviations from the actual center of the line tend to be more to the left than to the right. In other visuo-spatial tasks, a similar bias to the left hemifield is apparent. Pseudoneglect shows similarities to impairments in patients suffering from a medical condition called hemispatial neglect. However, the effects of pseudoneglect are marginally small and mainly restricted to experimental settings in scientific labs.

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2020-01-11 06:41:12Z
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