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Spatial Organisation in the Human Mind as a Function of the Distance Between Stimuli
Journal article   Open access   Peer reviewed

Spatial Organisation in the Human Mind as a Function of the Distance Between Stimuli

Hannah Fenwick, Guillermo Campitelli and Alessandro Guida
Quarterly journal of experimental psychology (2006), Vol.78(6), pp.1107-1123
2024
DOI: https://doi.org/10.1177/17470218241255690
PMID: 38724474
Appears in  Open Access via Read & Publish Agreements
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CC BY V4.0,  Open Access

Abstract

serial order coding positional tagging spatialisation mental whiteboard hypothesis ordinal position effect SPoARC effect
Studies investigating serial order in working memory have shown that participants from Western cultures are faster at responding to items presented at the beginning of a sequence using their left hand and faster at responding to items at the end with their right hand. This is known as the spatial positional association of response codes (SPoARC) effect. The SPoARC effect provides evidence that recently presented information is spatially organised in the cognitive system along a horizontal axis. This study investigated the flexibility of spatialisation by testing the effect that distance between items presented on a screen has on the magnitude of the SPoARC effect. It was hypothesised that by increasing the distance between items on a screen a larger SPoARC effect would be found. We used three conditions: central, narrow, and wide. In central, four random letters were presented sequentially at the centre of the screen, in narrow the letters were presented from left to right on the screen, wide was the same as narrow but the separation between the letters was larger. Participants consisted of 64 adults aged 18-55 years old. Participants were presented with four random letters, followed by single probe letter, participants had to indicate, by pressing a key on a normal keyboard, if the probe had been in the sequence. We analysed the data with multilevel modelling. We found evidence for the SPoARC effect in all three conditions. But no evidence that the effect varied between conditions.

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