Related Experiment Video
Updated: Jun 16, 2026

Investigations on Alterations of Hippocampal Circuit Function Following Mild Traumatic Brain Injury
Published on: November 19, 2012
Verbal memory impairment in severe closed head injury: the role of encoding and consolidation
Matthew J Wright1, Maureen Schmitter-Edgecombe, Ellen Woo
1Department of Psychiatry, Harbor-UCLA Medical Center, Torrance, CA 90502, USA. mwright@labiomed.org
Abstract:
We applied the item-specific deficit approach (ISDA) to California Verbal Learning Test data obtained from 56 severe, acceleration-deceleration closed head injury (CHI) participants and 62 controls. The CHI group demonstrated deficits on all ISDA indices in comparison to controls. Regression analyses indicated that encoding deficits, followed by consolidation deficits, accounted for most of the variance in delayed recall. Additionally, level of acquisition played a partial role in CHI-associated consolidation difficulties. Finally, CHI encoding deficits were largely driven by low semantic clustering during list learning. These results suggest that encoding (primary) and consolidation (secondary) deficits account for CHI-associated verbal memory impairment.
More Related Videos
09:49Assessing Changes in Synaptic Plasticity Using an Awake Closed-Head Injury Model of Mild Traumatic Brain Injury
Published on: January 20, 2023
09:16Use of a Wireless Video-EEG System to Monitor Epileptiform Discharges Following Lateral Fluid-Percussion Induced Traumatic Brain Injury
Published on: June 21, 2019
Related Concept Videos
Higher Mental Functions of Brain: Learning and Memory
Role of Hippocampus in Memory
Traumatic Brain Injury l: Introduction
Amnesia
The severity and duration of memory loss vary depending on the type and underlying cause. Amnesia is classified into two main types: retrograde and anterograde.
Retrograde amnesia is marked by the loss of memories formed before the onset of the condition. Patients may recall distant past events but often forget those occurring shortly before the incident.
Anterograde...
Role of Cerebellum and Prefrontal Cortex in Memory
Traumatic Memory