Please use this identifier to cite or link to this item: https://hdl.handle.net/10316/47354
Title: Grasping with the eyes: The role of elongation in visual recognition of manipulable objects
Authors: Almeida, Jorge 
Mahon, Bradford Z. 
Zapater-Raberov, Veronica 
Dziuba, Aleksandra 
Cabaço, Tiago 
Marques, J. Frederico 
Caramazza, Alfonso 
Keywords: Hand; Humans; Models, Neurological; Photic Stimulation; Psychophysics; Reaction Time; Repetition Priming; Pattern Recognition, Visual; Psychomotor Performance
Issue Date: 2013
Serial title, monograph or event: Cognitive, Affective, & Behavioral Neuroscience
Volume: 14
Issue: 1
Abstract: Processing within the dorsal visual stream subserves object-directed action, whereas visual object recognition is mediated by the ventral visual stream. Recent findings suggest that the computations performed by the dorsal stream can nevertheless influence object recognition. Little is known, however, about the type of dorsal stream information that is available to assist in object recognition. Here, we present a series of experiments that explored different psychophysical manipulations known to bias the processing of a stimulus toward the dorsal visual stream in order to isolate its contribution to object recognition. We show that elongated-shaped stimuli, regardless of their semantic category and familiarity, when processed by the dorsal stream, elicit visuomotor grasp-related information that affects how we categorize manipulable objects. Elongated stimuli may reduce ambiguity during grasp preparation by providing a coarse cue to hand shaping and orientation that is sufficient to support action planning. We propose that this dorsal-stream-based analysis of elongation along a principal axis is the basis for how the dorsal visual object processing stream can affect categorization of manipulable objects.
URI: https://hdl.handle.net/10316/47354
DOI: 10.3758/s13415-013-0208-0
Rights: openAccess
Appears in Collections:I&D CINEICC - Artigos em Revistas Internacionais

Files in This Item:
File Description SizeFormat
Almeida_etal_inpress_CABN_graspfromshape.pdf882.44 kBAdobe PDFView/Open
Show full item record

SCOPUSTM   
Citations

45
checked on Mar 18, 2024

WEB OF SCIENCETM
Citations 5

44
checked on Mar 2, 2024

Page view(s) 5

1,278
checked on Mar 12, 2024

Download(s)

376
checked on Mar 12, 2024

Google ScholarTM

Check

Altmetric

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.