PMID- 10223678
OWN - NLM
STAT- MEDLINE
DCOM- 19990701
LR  - 20191103
IS  - 0892-1997 (Print)
IS  - 0892-1997 (Linking)
VI  - 13
IP  - 1
DP  - 1999 Mar
TI  - Vocal tremor and psychological stress.
PG  - 105-12
AB  - This study examines vocal tremor and its decrease in high versus low 
      experimentally induced stress situations. We have analyzed the Amplitude Tremor 
      Intensity Index (ATRI) and Frequency Tremor Intensity Index (FTRI) from the 
      prolongation of vowel /a/ for approximately 5 seconds, under baseline conditions 
      and under 3 different test conditions (reading of tongue twister, reading of 
      tongue twister with delayed auditory feedback [DAF], and spelling of alphabet in 
      reverse order), in a 2-test series, with and without demanding experimental 
      instructions (Experiments 1 and 2, respectively). Inclusion of experimental 
      instructions was considered as making the first test situation more stressful 
      than the second one. Our results show a significant decrease in the ATRI variable 
      when reading a tongue twister with DAF in relation to the baseline for the first 
      test but not in the second, which suggests a suppression or significant reduction 
      of amplitude tremor only in high-stress situations.
FAU - Mendoza, E
AU  - Mendoza E
AD  - Department of Personality, Evaluation and Psychological Treatment, University of 
      Granada, Spain.
FAU - Carballo, G
AU  - Carballo G
LA  - eng
PT  - Clinical Trial
PT  - Journal Article
PT  - Randomized Controlled Trial
PT  - Research Support, Non-U.S. Gov't
PL  - United States
TA  - J Voice
JT  - Journal of voice : official journal of the Voice Foundation
JID - 8712262
SB  - IM
MH  - Adolescent
MH  - Adult
MH  - Feedback
MH  - Female
MH  - Humans
MH  - Male
MH  - Phonation/*physiology
MH  - Severity of Illness Index
MH  - Speech Acoustics
MH  - Stress, Psychological/*psychology
MH  - Tremor/*diagnosis
EDAT- 1999/05/01 00:00
MHDA- 1999/05/01 00:01
CRDT- 1999/05/01 00:00
PHST- 1999/05/01 00:00 [pubmed]
PHST- 1999/05/01 00:01 [medline]
PHST- 1999/05/01 00:00 [entrez]
AID - S0892-1997(99)80064-2 [pii]
AID - 10.1016/s0892-1997(99)80064-2 [doi]
PST - ppublish
SO  - J Voice. 1999 Mar;13(1):105-12. doi: 10.1016/s0892-1997(99)80064-2.