Amplitude modulation encoding in the auditory cortex: comparisons between the primary and middle lateral belt regions

JS Johnson, M Niwa, KN O'Connor… - Journal of …, 2020 - journals.physiology.org
In macaques, the middle lateral auditory cortex (ML) is a belt region adjacent to the primary
auditory cortex (A1) and believed to be at a hierarchically higher level. Although ML single …

Coding of amplitude modulation in primary auditory cortex

P Yin, JS Johnson, KN O'Connor… - Journal of …, 2011 - journals.physiology.org
Conflicting results have led to different views about how temporal modulation is encoded in
primary auditory cortex (A1). Some studies find a substantial population of neurons that …

Differences between primary auditory cortex and auditory belt related to encoding and choice for AM sounds

M Niwa, JS Johnson, KN O'Connor… - Journal of …, 2013 - Soc Neuroscience
We recorded from middle–lateral (ML) and primary (A1) auditory cortex while macaques
discriminated amplitude-modulated (AM) noise from unmodulated noise. Compared with A1 …

Hierarchical effects of attention on amplitude modulation encoding in auditory cortex

M Sutter, KN O'Connor, J Downer, J Johnson… - The Journal of the …, 2013 - pubs.aip.org
How attention influences single neuron responses in the auditory system remains
unresolved. We found that when monkeys actively discriminated temporally amplitude …

Dynamic amplitude coding in the auditory cortex of awake rhesus macaques

BJ Malone, BH Scott… - Journal of …, 2007 - journals.physiology.org
In many animals, the information most important for processing communication sounds,
including speech, consists of temporal envelope cues below∼ 20 Hz. Physiological studies …

Temporally precise population coding of dynamic sounds by auditory cortex

JD Downer, J Bigelow, MJ Runfeldt… - Journal of …, 2021 - journals.physiology.org
Fluctuations in the amplitude envelope of complex sounds provide critical cues for hearing,
particularly for speech and animal vocalizations. Responses to amplitude modulation (AM) …

Hierarchical effects of task engagement on amplitude modulation encoding in auditory cortex

M Niwa, KN O'Connor, E Engall… - Journal of …, 2015 - journals.physiology.org
We recorded from middle lateral belt (ML) and primary (A1) auditory cortical neurons while
animals discriminated amplitude-modulated (AM) sounds and also while they sat passively …

Ability of primary auditory cortical neurons to detect amplitude modulation with rate and temporal codes: neurometric analysis

JS Johnson, P Yin, KN O'Connor… - Journal of …, 2012 - journals.physiology.org
Amplitude modulation (AM) is a common feature of natural sounds, and its detection is
biologically important. Even though most sounds are not fully modulated, the majority of …

Single cell responses to AM tones of different envelops at the auditory midbrain

PWF Poon, TW Chiu - Acoustical Signal Processing in the Central Auditory …, 1997 - Springer
Amplitude modulation (AM) and frequency modulation (FM) are important components of
complex acoustic signals including speech. Response to AM tone is found at many places of …

Amplitude modulation coding in awake mice and squirrel monkeys

NEG Hoglen, P Larimer, EAK Phillips… - Journal of …, 2018 - journals.physiology.org
Both mice and primates are used to model the human auditory system. The primate order
possesses unique cortical specializations that govern auditory processing. Given the power …