English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Are recognition deficits following occipital lobe TMS explained by raised detection thresholds?

Kammer, T., & Nusseck, H.-G. (1998). Are recognition deficits following occipital lobe TMS explained by raised detection thresholds? Neuropsychologia, 36, 1161-1166.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-E903-6 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-E904-4
Genre: Journal Article

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Kammer, T1, 2, Author              
Nusseck, H-G1, Author              
Affiliations:
1Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497797              
2Former Department Comparative Neurobiology, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497800              

Content

show
hide
Free keywords: -
 Abstract: It is known that transcranial magnetic stimulation (TMS) administered over the occipital pole suppresses recognition of visual objects. Our aim was to ascertain whether this suppression can be interpreted as a change in visual contrast threshold. Four subjects detected the orientation of an U- shaped hook flashed for 21 ms. Under control conditions, mean contrast threshold was found at 0.88 log units Weber contrast. Thresholds were raised if TMS was applied 40-200 ms after the visual stimulus. Maximum elevation was 1.67 log units under TMS at 120 ms stimulus onset asynchrony. This phenomenon can be interpreted as a reduction in signal-to-noise ratio of the visual stimuli by TMS, which can be compensated for by increasing the contrast of the stimuli. (C) 1998 Elsevier Science Ltd. All rights reserved.

Details

show
hide
Language(s):
 Dates: 1998
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: BibTex Citekey: 238
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Neuropsychologia
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: -
Pages: - Volume / Issue: 36 Sequence Number: - Start / End Page: 1161 - 1166 Identifier: -