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Contextual Expectations Shape Cortical Reinstatement of Sensory Representations.

Author: ClarkeAlex, Crivelli-DeckerJordan, RanganathCharan

Journal ArticleAn article published in an academic or professional journal that reports original research or scholarly analysis.
Research Support, Non-U.S. Gov'tResearch funding provided by government agencies outside the United States.
Research Support, U.S. Gov't, Non-P.H.S.Research funding provided by US government agencies other than the Public Health Service.

Overview

This study uses fMRI to investigate how our brains predict what we will see next based on our knowledge of a spatial environment. The results show that both visual and memory systems reflect item predictions, with activity in early visual cortex and posterior medial regions reflecting predicted items. The hippocampus plays a key role in facilitating these predictions by modulating visual cortical activity in anticipation of expected items.
Paper Details　
Original Abstract of the Article :
When making a turn at a familiar intersection, we know what items and landmarks will come into view. These perceptual expectations, or predictions, come from our knowledge of the context; however, it is unclear how memory and perceptual systems interact to support the prediction and reactivation of ...See full text at original site
Dr.Camel IconDr.Camel's Paper Summary Blogラクダ博士について

ラクダ博士は、Health Journal が論文の内容を分かりやすく解説するために作成した架空のキャラクターです。
難解な医学論文を、専門知識のない方にも理解しやすいように、噛み砕いて説明することを目指しています。

* ラクダ博士による解説は、あくまで論文の要点をまとめたものであり、原論文の完全な代替となるものではありません。詳細な内容については、必ず原論文をご参照ください。
* ラクダ博士は架空のキャラクターであり、実際の医学研究者や医療従事者とは一切関係がありません。
* 解説の内容は Health Journal が独自に解釈・作成したものであり、原論文の著者または出版社の見解を反映するものではありません。


引用元：
https://pubmed.ncbi.nlm.nih.gov/35750489

データ提供：米国国立医学図書館（NLM）

The Brain's Internal GPS: How Expectations Shape Perception

This research explores the intriguing interplay between memory and perception, specifically how our expectations influence what we see. Imagine a desert traveler familiar with the terrain, able to anticipate the next landmark or oasis.

The Hippocampus: A Memory Master

The study reveals that the hippocampus, a brain region crucial for memory, plays a key role in shaping our visual perception based on our past experiences. It's like a desert guide, using their knowledge of the terrain to predict the next landmark or oasis. The study shows that activity patterns in the hippocampus correlate with visual experiences, even when those experiences are expected but not actually seen.

Harnessing the Power of Expectations

This research highlights the fascinating way our brains use past experiences to anticipate and interpret the world around us. It's like using a compass to navigate the desert, relying on past experiences to guide our journey. Understanding these mechanisms could potentially lead to new strategies for enhancing perception and memory.

Dr. Camel's Conclusion

This study unveils the intricate relationship between memory and perception, demonstrating how our brains use past experiences to anticipate and shape what we see. It's like a desert traveler, using their knowledge of the landscape to navigate a familiar path. This research provides insights into the complex interplay between memory and perception, offering a glimpse into the brain's internal GPS.

Date :
  1. Date Completed 2022-07-29
  2. Date Revised 2023-02-09
Further Info :

Pubmed ID

35750489

DOI: Digital Object Identifier

EMS146366

Related Literature

Article Analysis
・Effective treatment of visualization (cam)
SNS
PICO Info
in preparation
Languages

English

Positive IndicatorAn AI analysis index that serves as a benchmark for how positive the results of the study are. Note that it is a benchmark and requires careful interpretation and consideration of different perspectives.

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