size_weight_illusion: Data from one patient and 28 controls on the size-weight...
In singcar: Comparing Single Cases to Small Samples
size_weight_illusion R Documentation
Data from one patient and 28 controls on the size-weight illusion
Description
A dataset containing data from 28 healthy controls and one patient, DF, with
visual form agnosia (inability to perceive the form of objects) from
bilateral lesions to the lateral occipital complex. The size-weight illusion
occurs when a person underestimates the weight of a larger item when compared
to a smaller of equal weight (Charpentier, 1891). From these data, one can
assess the magnitude of the illusion for patient DF by comparison to
age-matched controls under visual and kinaesthetic cue conditions. The
measure of the size-weight illusion is a scaled measure expressing the
number of grams weight difference perceived per cubic cm of volume change
(Hassan et al, 2020).
Usage
size_weight_illusion
Format
A data frame with 29 rows and 6 variables:
- GROUP
factor with patient (SC) or control group (HC)
- PPT
participant identifier
- SEX
gender of partcipants
- YRS
age of participants
- V_SWI
SWI measure from the visual task
- K_SWI
SWI measure from the kinaesthetic task
Source
https://osf.io/3s2fp/?view_only=50c8af0b39ee436b85d292b0a701cc3b
References
Hassan, E. K., Sedda, A., Buckingham, G., & McIntosh, R. D. (2020). The
size-weight illusion in visual form agnosic patient DF. Neurocase, 1-8.
https://doi.org/10.1080/13554794.2020.1800748
singcar documentation built on March 31, 2023, 9:25 p.m.
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| size_weight_illusion | R Documentation |
Data from one patient and 28 controls on the size-weight illusion
Description
A dataset containing data from 28 healthy controls and one patient, DF, with visual form agnosia (inability to perceive the form of objects) from bilateral lesions to the lateral occipital complex. The size-weight illusion occurs when a person underestimates the weight of a larger item when compared to a smaller of equal weight (Charpentier, 1891). From these data, one can assess the magnitude of the illusion for patient DF by comparison to age-matched controls under visual and kinaesthetic cue conditions. The measure of the size-weight illusion is a scaled measure expressing the number of grams weight difference perceived per cubic cm of volume change (Hassan et al, 2020).
Usage
size_weight_illusion
Format
A data frame with 29 rows and 6 variables:
- GROUP
factor with patient (SC) or control group (HC)
- PPT
participant identifier
- SEX
gender of partcipants
- YRS
age of participants
- V_SWI
SWI measure from the visual task
- K_SWI
SWI measure from the kinaesthetic task
Source
https://osf.io/3s2fp/?view_only=50c8af0b39ee436b85d292b0a701cc3b
References
Hassan, E. K., Sedda, A., Buckingham, G., & McIntosh, R. D. (2020). The size-weight illusion in visual form agnosic patient DF. Neurocase, 1-8. https://doi.org/10.1080/13554794.2020.1800748
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