PMID- 32006971
OWN - NLM
STAT- MEDLINE
DCOM- 20210325
LR  - 20240328
IS  - 1520-8524 (Electronic)
IS  - 0001-4966 (Print)
IS  - 0001-4966 (Linking)
VI  - 147
IP  - 1
DP  - 2020 Jan
TI  - On the utility of perceptual anchors during pure-tone frequency discrimination.
PG  - 371
LID - 10.1121/10.0000584 [doi]
AB  - Perceptual anchors are representations of stimulus features stored in long-term 
      memory rather than short-term memory. The present study investigated whether 
      listeners use perceptual anchors to improve pure-tone frequency discrimination. 
      Ten amateur musicians performed a two-interval, two-alternative forced-choice 
      frequency-discrimination experiment. In one half of the experiment, the frequency 
      of the first tone was fixed across trials, and in the other half, the frequency 
      of the first tone was roved widely across trials. The durations of the 
      interstimulus intervals (ISIs) and the frequency differences between the tones on 
      each trial were also manipulated. The data were analyzed with a Bayesian model 
      that assumed that performance was limited by sensory noise (related to the 
      initial encoding of the stimuli), memory noise (which increased proportionally to 
      the ISI), fluctuations in attention, and response bias. It was hypothesized that 
      memory-noise variance increased more rapidly during roved-frequency 
      discrimination than fixed-frequency discrimination because listeners used 
      perceptual anchors in the latter condition. The results supported this 
      hypothesis. The results also suggested that listeners experienced more lapses in 
      attention during roved-frequency discrimination.
FAU - Mathias, Samuel R
AU  - Mathias SR
AD  - Department of Psychiatry, Boston Children's Hospital, Boston, Massachusetts 
      02115, USA.
FAU - Varghese, Leonard
AU  - Varghese L
AD  - Department of Electrical and Computer Engineering, University of Massachusetts 
      Dartmouth, Dartmouth, Massachusetts 02747, USA.
FAU - Micheyl, Christophe
AU  - Micheyl C
AD  - Starkey France, 94000 Creteil, France.
FAU - Shinn-Cunningham, Barbara G
AU  - Shinn-Cunningham BG
AD  - Neuroscience Institute, Carnegie Mellon University, Pittsburg, Pennsylvania 
      15213, USA.
LA  - eng
GR  - R01 DC013825/DC/NIDCD NIH HHS/United States
PT  - Journal Article
PT  - Research Support, N.I.H., Extramural
PL  - United States
TA  - J Acoust Soc Am
JT  - The Journal of the Acoustical Society of America
JID - 7503051
SB  - IM
MH  - Acoustic Stimulation
MH  - Adult
MH  - *Auditory Perception
MH  - Bayes Theorem
MH  - Female
MH  - Humans
MH  - Male
MH  - *Memory, Long-Term
MH  - *Pitch Discrimination
MH  - Psychophysics
MH  - Young Adult
PMC - PMC7043863
EDAT- 2020/02/03 06:00
MHDA- 2021/03/26 06:00
PMCR- 2021/01/01
CRDT- 2020/02/03 06:00
PHST- 2020/02/03 06:00 [entrez]
PHST- 2020/02/03 06:00 [pubmed]
PHST- 2021/03/26 06:00 [medline]
PHST- 2021/01/01 00:00 [pmc-release]
AID - 10.0000584 [pii]
AID - 10.1121/10.0000584 [doi]
PST - ppublish
SO  - J Acoust Soc Am. 2020 Jan;147(1):371. doi: 10.1121/10.0000584.