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Prosopagnosia

Prosopagnosia

Prosopagnosia, also known as face blindness, is the inability to recognize faces. In severe cases, individuals with prosopagnosia may not recognize close family members, including parents and spouses, by their faces. For instance, someone with prosopagnosia might walk past their child in a crowd, only realizing their mistake upon noticing their child's distinctive backpack or favorite jacket. Prosopagnosia specifically impairs facial recognition, while the recognition of other objects or...

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Related Experiment Video

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How to Find Effects of Stimulus Processing on Event Related Brain Potentials of Close Others when Hyperscanning Partners

How to Find Effects of Stimulus Processing on Event Related Brain Potentials of Close Others when Hyperscanning Partners

Published on: May 31, 2018

Investigating app icon recognition with event-related potentials.

Axu Hu¹, Shu Liu¹, Hong Yang^2,3

¹Key Laboratory of Language and Cultural Computing of Ministry of Education, Northwest Minzu University, Lanzhou.

|June 4, 2023

Summary

Recognizing familiar app icons activates the ventral occipitotemporal cortex around 220ms. This brain region, including the fusiform gyrus, is crucial for processing visual symbols and words.

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Interaction between Phonological and Semantic Processes in Visual Word Recognition using Electrophysiology

Interaction between Phonological and Semantic Processes in Visual Word Recognition using Electrophysiology

Published on: June 29, 2021

Area of Science:

Cognitive Neuroscience
Neuroimaging
Visual Perception

Background:

Visual symbols like app icons are integral to modern communication.
Understanding the neural basis of recognizing these symbols is essential.

Purpose of the Study:

To investigate the neural mechanisms underlying app icon recognition.
To determine the timing and location of brain activity during app icon processing.

Main Methods:

Event-related potentials (ERPs) were recorded during a repetition detection task.
Participants viewed familiar and unfamiliar app icons.
Source analysis was used to pinpoint the origin of brain activity.

Main Results:

A significant difference in ERPs was observed between familiar and unfamiliar app icons.
This difference occurred approximately 220ms post-stimulus onset in the parietooccipital region.
Source analysis localized the activity to the ventral occipitotemporal cortex, specifically the fusiform gyrus.

Conclusions:

Familiar app icon recognition involves activation of the ventral occipitotemporal cortex around 220ms.
These findings suggest shared neural mechanisms for processing visual words and app icons.
The ventral occipitotemporal cortex plays a key role in recognizing visual symbols and objects.