Theoretical Relationship Between Two Measures of Spike Synchrony: Correlation Index and Vector Strength.

ABSTRACT: Information processing in the nervous system critically relies on temporally precise spiking activity. In the auditory system, various degrees of phase-locking can be observed from the auditory nerve to cortical neurons. The classical metric for quantifying phase-locking is the vector strength (VS), which captures the periodicity in neuronal spiking. More recently, another metric, called the correlation index (CI), was proposed to quantify the temporally reproducible response characteristics of a neuron. The CI is defined as the peak value of a normalized shuffled autocorrelogram (SAC). Both VS and CI have been used to investigate how temporal information is processed and propagated along the auditory pathways. While previous analyses of physiological data in cats suggested covariation of

SUBMITTER: Kessler D 

PROVIDER: S-EPMC8721039 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature