Publication detail

Model of Visually Evoked Cortical Potentials

KREMLÁČEK, J., HOLČÍK, J.

Original Title

Model of Visually Evoked Cortical Potentials

Type

journal article - other

Language

English

Original Abstract

The pattern reversal (P-VEPs) and the motion-onset (M-VEPs) of visual evoked potentials were modelled by means of three damped oscillators (O1, O2, O3) of identical construction. The O1, assumed to simulate the response of primary visual area (V1), was driven by the firing density of the lateral geniculate nuclei. O1 contributed mainly to the N75 and P100 peaks of the P-VEPs. The O2, driven by the O1 output, mimics the activity of V2, V3a, and MT. It contributed to the negative peak N145 of the P-VEPs or to the N160 in the M-VEPs. The O3 was suggested to model late slow processes probably of an attentive origin. The model parameters were set by optimisation to follow the P-VEPs and M-VEPs obtained as a grand average of four young volunteers (Pz-A2 lead). The evoked potentials were described with normalized root mean square error lower than 13%.

Key words in English

model, cortical potentials

Authors

KREMLÁČEK, J., HOLČÍK, J.

RIV year

2002

Released

1. 1. 2002

ISBN

0862-8408

Periodical

Physiological Research

Year of study

51

Number

1

State

Czech Republic

Pages from

65

Pages to

71

Pages count

7

BibTex

@article{BUT40671,
  author="Jan {Kremláček} and Jiří {Holčík}",
  title="Model of Visually Evoked Cortical Potentials",
  journal="Physiological  Research",
  year="2002",
  volume="51",
  number="1",
  pages="7",
  issn="0862-8408"
}