عنوان

Contextual Modulation of Competitive Object Candidates in Early Object Recognition

Number

TL49401

.Language of Text, Soundtrack etc

انگلیسی

Title Proper

Contextual Modulation of Competitive Object Candidates in Early Object Recognition

General Material Designation

[Thesis]

First Statement of Responsibility

Mohammed F. Islam

Subsequent Statement of Responsibility

Barenholtz, Elan

Name of Publisher, Distributor, etc.

Florida Atlantic University

Date of Publication, Distribution, etc.

2017

Specific Material Designation and Extent of Item

48

Text of Note

Place of publication: United States, Ann Arbor; ISBN=978-1-369-84957-8

Dissertation or thesis details and type of degree

M.A.

Discipline of degree

Psychology

Body granting the degree

Florida Atlantic University

Text preceding or following the note

2017

Text of Note

Object recognition is imperfect; often incomplete processing or deprived information yield misperceptions (i.e., misidentification) of objects. While quickly rectified and typically benign, instances of such errors can produce dangerous consequences (e.g., police shootings). Through a series of experiments, this study examined the competitive process of multiple object interpretations (candidates) during the earlier stages of object recognition process using a lexical decision task paradigm. Participants encountered low-pass filtered objects that were previously demonstrated to evoke multiple responses: a highly frequented interpretation ("primary candidates") and a lesser frequented interpretation ("secondary candidates"). When objects were presented without context, no facilitative effects were observed for primary candidates. However, secondary candidates demonstrated evidence for being actively suppressed. When primed with scenes semantically relevant to primary candidates, the suppression of the secondary candidate was eliminated while primary candidates continued to lack facilitation. However, when primed with scenes consistent with secondary candidates, secondary candidates were once again suppressed. Moreover, primary candidates were facilitated. Overall findings suggest that primary candidates may actively suppress competition from lesser candidates in the earlier stages of object recognition. This effect is strengthened when the primary candidate is challenged but removed when it is reaffirmed.

Behavioral psychology

Subject Term

Psychology;Context effects;Lexical decision tasks;Negative priming;Object recognition;VIsual cognition

Alfawzan, Norah Saad

Barenholtz, Elan

Subdivision

Psychology

Florida Atlantic University

Call Number

1914674082; 10610525

Electronic name

p

[Thesis]

276903

a

Y