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Related Concept Videos

Role of Hippocampus in Memory01:19

Role of Hippocampus in Memory

The hippocampus, a critical brain structure, plays an essential role in memory processing, particularly in the formation and retrieval of memory. This small, seahorse-shaped region is located within the medial temporal lobe, with one hippocampus in each brain hemisphere. Experimental studies involving lesions in the hippocampi of rats have demonstrated significant impairments in tasks such as object recognition and maze navigation, indicating the hippocampus involvement in both recognition and...
Functional Brain Systems: Limbic System01:15

Functional Brain Systems: Limbic System

The limbic system, often called the "emotional brain," is a complex set of structures located deep within the brain. The intricate network of the limbic system supports a wide range of psychological functions, from emotional regulation to memory formation and sensory processing. This functional brain region encompasses specific parts of the diencephalon and the cerebrum, integrating the higher mental functions of the cerebral cortex with the primitive emotional responses of the deep brain...
Factors Affecting Perception01:25

Factors Affecting Perception

Perception is influenced by perceptual set, context, motivation, and emotion. Perceptual set, or perceptual expectancy, refers to the tendency to perceive things in a particular way, influenced by previous experiences and expectations. This phenomenon affects the interpretation of stimuli, creating a set of mental tendencies and assumptions that impact sensory perceptions of sound, taste, touch, and sight.
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Storage01:23

Storage

A schema is a mental framework that helps individuals organize and interpret information. Schemata, formed from previous experiences, influence how we process new information: how we encode it, the inferences we make, and how we retrieve it. For instance, a schema for what a typical classroom looks like might include desks, a teacher's desk, a whiteboard, and students in such an environment. This expectation helps us quickly understand and navigate new classrooms without needing to analyze each...
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Olfaction

The sense of smell is achieved through the activities of the olfactory system. It starts when an airborne odorant enters the nasal cavity and reaches olfactory epithelium (OE). The OE is protected by a thin layer of mucus, which also serves the purpose of dissolving more complex compounds into simpler chemical odorants. The size of the OE and the density of sensory neurons varies among species; in humans, the OE is only about 9-10 cm2.
The olfactory receptors are embedded in the cilia of the...
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Traumatic Memory

Emotionally traumatic events often lead to memories that are exceptionally vivid and enduring, sometimes persisting with remarkable clarity throughout an individual's life. A classic example of this phenomenon is a person who survives a car accident. Even years later, they may recall every detail of the event with startling accuracy — the screeching of the tires, the jarring impact, and the acrid smell of burning rubber. Such vividness contrasts sharply with how an individual remembers mundane...

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Related Experiment Video

Updated: Jun 15, 2026

A Comprehensive Protocol for Manual Segmentation of the Medial Temporal Lobe Structures
12:30

A Comprehensive Protocol for Manual Segmentation of the Medial Temporal Lobe Structures

Published on: July 2, 2014

Scene complexity: influence on perception, memory, and development in the medial temporal lobe.

Xiaoqian J Chai1, Noa Ofen, Lucia F Jacobs

  • 1Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology Cambridge, MA, USA.

Frontiers in Human Neuroscience
|March 13, 2010
PubMed
Summary

Memory for complex scenes improves with age, linked to the maturing right posterior parahippocampal gyrus (PHG). This brain region

Keywords:
cognitive developmentdeclarative memoryfMRIparahippocampal gyrusperceptionvisual scenes

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Last Updated: Jun 15, 2026

A Comprehensive Protocol for Manual Segmentation of the Medial Temporal Lobe Structures
12:30

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Published on: July 2, 2014

Brain Imaging Investigation of the Memory-Enhancing Effect of Emotion
15:57

Brain Imaging Investigation of the Memory-Enhancing Effect of Emotion

Published on: May 4, 2011

Cross-Modal Multivariate Pattern Analysis
13:51

Cross-Modal Multivariate Pattern Analysis

Published on: November 9, 2011

Area of Science:

  • Neuroscience
  • Developmental Psychology
  • Cognitive Science

Background:

  • Medial temporal lobe (MTL) and prefrontal cortex (PFC) regions are crucial for memory formation in both children and adults.
  • While PFC activation increases with age during scene memory encoding, MTL activation patterns are less clear.
  • The parahippocampal gyrus (PHG), a key MTL region for scene perception, undergoes prolonged maturation.

Purpose of the Study:

  • To investigate if the maturation of scene perception abilities supports the development of memory for complex scenes.
  • To examine how scene complexity influences memory recognition and associated brain activity across different age groups.

Main Methods:

  • Participants aged 8-24 viewed scenes varying in complexity (number of unique object categories).
  • Recognition memory performance was assessed.
  • Brain activity was measured using fMRI, focusing on activations in response to high- vs. low-complexity scenes.

Main Results:

  • Recognition memory improved with age for high-complexity scenes, but not for low-complexity scenes.
  • High-complexity scenes elicited greater activation in a network including the posterior PHG compared to low-complexity scenes.
  • Age-related increases in activation were observed in the right posterior PHG for high- vs. low-complexity scenes.
  • Activation in the right posterior PHG correlated with age-related improvements in memory for high-complexity scenes.

Conclusions:

  • Functional maturation of the right posterior PHG is critical for developing long-term memory of complex scenes.
  • Scene complexity significantly impacts memory development and the underlying neural mechanisms.