The Role of Visual Experience in Changing the Size of Objects in Imagery Processing

Szubielska, Magdalena; Marek, Bogusław

doi:10.1177/0145482x1510900106

Cited by 7 publications

(7 citation statements)

References 30 publications

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“…In conclusion, following the mental scaling procedure of Szubielska and Marek (2015), our study confirms the results of other experiments on mental size scaling (Bennett & Warren, 2002;Jolicoeur, 1987;Larsen & Bundesen, 1978;Muthukumaraswamy et al, 2003;Srinivas et al, 1997;Szubielska, 2015). In these studies, as in ours, the imagining task took longer when it required mentally changing the size of the object than when the object did not need to be resized.…”

Section: Rosenbergsupporting

confidence: 91%

“…Answers for height estimation were given either verbally (in centimeters), or by indicating it bimanually using a string. The latter method followed the measurement procedure for estimating the size of objects used by Szubielska and Marek (2015), that is, the participants were asked to demonstrate the linear size of the imagined object on a piece of string. The relevant section of the string was then measured by the experimenter.…”

Section: Methodsmentioning

confidence: 99%

“…The proposed procedure was inspired by an experiment where the participants (visually impaired individuals) were asked to imagine an object they had touched before and assess its size bimanually on a given scale using a string (see Szubielska & Marek, 2015). In this procedure, when the participants placed their hands in the desired position, they received proprioceptive feedback.…”

Section: Time Of Imagery Operationmentioning

confidence: 99%

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Mental Size Scaling of Three-Dimensional Objects Perceived Visually or Tactilely

Szubielska¹,

Bałaj²

2018

ACP

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Section: Rosenbergsupporting

confidence: 91%

Section: Methodsmentioning

confidence: 99%

Section: Time Of Imagery Operationmentioning

confidence: 99%

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Mental Size Scaling of Three-Dimensional Objects Perceived Visually or Tactilely

Szubielska¹,

Bałaj²

2018

ACP

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“…The research reported in the present paper suggests that when walking around with a raised-line map a blind person should not find it more difficult than a sighted person to compare the spatial relations shown on the map with the actual spatial relations in the location, even after a rotation of the map -providing, obviously, that the congenitally blind person understands the concept of size scale and can accurately perform mental majorization and minorization as well as a sighted person (cf. Szubielska & Marek, 2015a, 2015b.…”

Section: Discussionmentioning

confidence: 99%

Mental rotation of figures explored by touch: A study of congenitally blind and sighted individuals

Szubielska

Zabielska‐Mendyk

2018

RPsych

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The form of mental images in congenitally blind people is intensely debated by researchers. In order to get a better insight into this topic, we conducted an experiment during which the task for congenitally blind individuals was to learn 2D tactile shapes and then mentally rotate them. The control group consisted of blindfolded sighted individuals. The visuo-spatial working memory model was treated as a theoretical framework for the theoretical debate. The aim of the study was to determine whether the accuracy of mental rotation is lower in congenitally blind than in sighted individuals and whether the difference in accuracy between the groups depends on the complexity of tactile figures. We also tested if the complexity of the figure and the background (grid or frame) influences the passive and active components of visuo-spatial working memory. Results show that congenitally blind subjects learned the shapes of figures by touch and rotated them faster than sighted subjects. It was established that the learning time depends on the complexity of figures and backgrounds. Figures presented on a complex background of a grid required more time to learn then figures in a frame. Moreover, sighted individuals required more time to learn complex figures than they did to learn simple ones. This was not the case with the congenitally blind. The rotation task was performed with greater accuracy for figures presented on a plain background compared to the complex background, and faster for figures drawn in a frame than for those on a grid. The study has shown that the active component of the visuo-spatial working memory engaged during

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“…Furthermore, as outlined above, blind individuals vary with respect to the visual experiences and ability to use visual imagery. Here, it may be the case that individuals with visual experiences (i.e., late blind individuals, [ 24 ]) use other scaling strategies than congenitally blind or early blind individuals without visual memory (cf. [ 18 ]).…”

Section: Introductionmentioning

confidence: 99%

Adults’ spatial scaling of tactile maps: Insights from studying sighted, early and late blind individuals

Szubielska,

Szewczyk,

Augustynowicz

et al. 2024

PLoS ONE

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The current study investigated spatial scaling of tactile maps among blind adults and blindfolded sighted controls. We were specifically interested in identifying spatial scaling strategies as well as effects of different scaling directions (up versus down) on participants’ performance. To this aim, we asked late blind participants (with visual memory, Experiment 1) and early blind participants (without visual memory, Experiment 2) as well as sighted blindfolded controls to encode a map including a target and to place a response disc at the same spot on an empty, constant-sized referent space. Maps had five different sizes resulting in five scaling factors (1:3, 1:2, 1:1, 2:1, 3:1), allowing to investigate different scaling directions (up and down) in a single, comprehensive design. Accuracy and speed of learning about the target location as well as responding served as dependent variables. We hypothesized that participants who can use visual mental representations (i.e., late blind and blindfolded sighted participants) may adopt mental transformation scaling strategies. However, our results did not support this hypothesis. At the same time, we predicted the usage of relative distance scaling strategies in early blind participants, which was supported by our findings. Moreover, our results suggested that tactile maps can be scaled as accurately and even faster by blind participants than by sighted participants. Furthermore, irrespective of the visual status, participants of each visual status group gravitated their responses towards the center of the space. Overall, it seems that a lack of visual imagery does not impair early blind adults’ spatial scaling ability but causes them to use a different strategy than sighted and late blind individuals.

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The Role of Visual Experience in Changing the Size of Objects in Imagery Processing

Cited by 7 publications

References 30 publications

Mental Size Scaling of Three-Dimensional Objects Perceived Visually or Tactilely

Mental Size Scaling of Three-Dimensional Objects Perceived Visually or Tactilely

Mental rotation of figures explored by touch: A study of congenitally blind and sighted individuals

Adults’ spatial scaling of tactile maps: Insights from studying sighted, early and late blind individuals

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