Age-Related Changes in Perirhinal Cortex Sensitivity to Configuration and Part Familiarity and Connectivity to Visual Cortex

Cacciamani, Laura; Wager, Erica; Peterson, Mary A.; Scalf, Paige E.

doi:10.3389/fnagi.2017.00291

Cited by 10 publications

(10 citation statements)

References 73 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Barense and colleagues found that the PRC plays a critical role in border familiarity effects on figure assignment 52 and proposed that the PRC modulates activity in the lower level visual area V2. Subsequent studies reported evidence consistent with this proposal 53,54 ; this evidence is consistent with the idea that memory representations of objects are integrated with the input, as we hypothesize here (although we note that there is no evidence that feedback from the PRC in particular mediates the present results).…”

Section: Discussionsupporting

confidence: 92%

“…The effects seen in this study may be mediated by feedback from high-level brain regions representing object memories. Recently, the perirhinal cortex (PRC) of the medial temporal lobe (MTL), traditionally considered exclusively a memory-related structure, has been implicated in object perception [48][49][50][51][52][53][54] . Barense and colleagues found that the PRC plays a critical role in border familiarity effects on figure assignment 52 and proposed that the PRC modulates activity in the lower level visual area V2.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Prior Experience Alters the Appearance of Blurry Object Borders

Perez

Cook

Peterson

2020

Sci Rep

Self Cite

View full text Add to dashboard Cite

Object memories activated by borders serve as priors for figure assignment: figures are more likely to be perceived on the side of a border where a well-known object is sketched. Do object memories also affect the appearance of object borders? Memories represent past experience with objects; memories of well-known objects include many with sharp borders because they are often fixated. We investigated whether object memories affect appearance by testing whether blurry borders appear sharper when they are contours of well-known objects versus matched novel objects. participants viewed blurry versions of one familiar and one novel stimulus simultaneously for 180 ms; then made comparative (Exp. 1) or equality judgments regarding perceived blur (Exps. 2-4). For equivalent levels of blur, the borders of well-known objects appeared sharper than those of novel objects. these results extend evidence for the influence of past experience to object appearance, consistent with dynamic interactive models of perception.

show abstract

Section: Discussionsupporting

confidence: 92%

Section: Discussionmentioning

confidence: 99%

Prior Experience Alters the Appearance of Blurry Object Borders

Perez

Cook

Peterson

2020

Sci Rep

Self Cite

View full text Add to dashboard Cite

show abstract

“…Barense and colleagues found that the PRC plays a critical role in border familiarity effects on figure assignment 49 and proposed that the PRC modulates activity in the lower level visual area V2. Subsequent studies reported evidence consistent with this proposal 50–51 ; this evidence is consistent with the idea that memory representations of objects are integrated with the input, as we hypothesize here (although we note that there is no evidence that feedback from the PRC in particular mediates the present results).…”

Section: Discussionsupporting

confidence: 92%

“…The effects seen in this study may be mediated by feedback from high-level brain regions representing object memories. Recently, the perirhinal cortex (PRC) of the medial temporal lobe (MTL), traditionally thought to be exclusively a memory-related structure, has been implicated in object perception 45–51 . Barense and colleagues found that the PRC plays a critical role in border familiarity effects on figure assignment 49 and proposed that the PRC modulates activity in the lower level visual area V2.…”

Section: Discussionmentioning

confidence: 99%

Prior Experience Alters the Appearance of Blurry Object Borders

Perez

Cook

Peterson

2019

Preprint

Self Cite

View full text Add to dashboard Cite

Object memories activated by borders serve as priors for figure assignment: figures are more likely to be perceived on the side of a border where a well-known object is sketched. Do object memories also affect the appearance of object borders? Memories represent past experience with objects; memories of well-known objects include many with sharp borders because they are often fixated. We investigated whether object memories affect appearance by testing whether blurry borders appear sharper when they are contours of well-known objects versus matched novel objects. Participants viewed blurry versions of one familiar and one novel stimulus simultaneously for 180ms; then made comparative (Exp. 1) or equality judgments regarding perceived blur (Exps. 2-4). For equivalent levels of blur, the borders of well-known objects appeared sharper than those of novel objects. These results extend evidence for the influence of past experience to object appearance, consistent with dynamic interactive models of perception.

show abstract

“…A set of stimuli originally used in experiments with brain-damaged participants, the “Object Memory Effects on Figure Assignment” (OMEFA) set has been used extensively [18 – 20]. Barense et al [18, 21, 22] tested figure assignment with Inverted Part-Rearranged displays as well. Recently, we modified the borders of the OMEFA stimuli, producing high-resolution images; we also eliminated some items and added others.…”

Section: Figurementioning

confidence: 99%

Normative Data for an Expanded Set of Stimuli for Testing High-Level Influences on Object Perception: OMEFA-II

Flowers

Orsten-Hooge

Jannuzi

et al. 2019

Preprint

Self Cite

View full text Add to dashboard Cite

25We present normative data for bipartite displays used to investigate high-level contributions to 26 object perception in general and to figure-ground perception in particular. In these vertically-27 elongated displays, two equal-area regions of different luminance abut a central, articulated, 28 vertical border. In Intact displays, a portion of a mono-oriented well-known ("familiar") object is 29 sketched along one side of the border; henceforth the "critical side." The other side is the 30 "complementary side." We measured inter-subject agreement among 32 participants regarding 31 objects depicted on the critical and complementary sides of the borders of Intact displays and 32 two other types of displays: upright and inverted Part-Rearranged displays. The parts on the 33 critical side of the border are the same in upright Intact and Part-Rearranged displays but 34 spatially rearranged into a new configuration in the latter. Inter-subject agreement is taken to 35 index the extent to which a side activates traces of previously seen objects near the central 36 border. We report normative data for 288 regions near the central borders of 144 displays 37 (48/type) and a thorough description of the image features. This set of stimuli is larger than an 38 older "Object Memory Effects on Figure Assignment" (OMEFA) set. This new OMEFA-II set of 39 high-resolution displays is available online (https://osf.io/j9kz2/). NORMATIVE DATA FOR OMEFA-II 3 40A fundamental aspect of object perception involves determining whether a border 41 between two regions in the visual field is a bounding contour of an object on one side, whether 42 the border is assigned to one side, or owned by one side but not the other. When the border 43 assignment occurs, the region on the side to which the border is assigned is perceived as a figure 44 (i.e., an object) shaped by the border, whereas the other side is perceived as a locally shapeless 45 ground (i.e., a background; e.g., [1 -4]). Border assignment is influenced by figural priors -46 object properties associated with figures rather than backgrounds, including enclosure, 47 symmetry, surroundedness, size, convexity, top-bottom polarity, lower region, contrast, and 48 familiar configuration (e.g., [4 -10]; for reviews: [1, 3, 11]).49 The aforementioned figural priors are image characteristics. Another figural prior -50 familiar configuration -depends upon past experience rather than image characteristics (e.g., [2, 51 12, 13]; for review: [14, 15]). Effects of familiar configuration on figure assignment were 52 demonstrated using vertically elongated bipartite displays like those in Figure 1, each consisting 53 of two equal-area regions (one black, one white) meeting at a central, articulated, vertical border. 54The displays were designed so that the central border sketched a portion of a common mono-55 oriented object (that has a typical upright orientation) on one, "critical," side and not on the 56 opposite, "complementary," side (see Figure 1A). This nominal difference between the t...

show abstract

Age-Related Changes in Perirhinal Cortex Sensitivity to Configuration and Part Familiarity and Connectivity to Visual Cortex

Cited by 10 publications

References 73 publications

Prior Experience Alters the Appearance of Blurry Object Borders

Prior Experience Alters the Appearance of Blurry Object Borders

Prior Experience Alters the Appearance of Blurry Object Borders

Normative Data for an Expanded Set of Stimuli for Testing High-Level Influences on Object Perception: OMEFA-II

Contact Info

Product

Resources

About