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. 2022 Apr 25;16:872639. doi: 10.3389/fnhum.2022.872639

Table 2.

Suppressive findings for animals and humans.

References Subjects/target Parameters Major findings
Yoo et al. (2011a) Rabbits (n = 19) fc: 0.69 MHz; (1) Sonication induced
Motor cortex ISPPA: 3.3 and 6.4 W/cm2; reduction in VEP magnitude
ISPTA: 0.165 and 0.32 W/cm2; for the P30 component
PRF: 0.1 kHz;
DC: 5%;
SD: 7,000–8,000 ms
Chu et al. (2015) Rats (n = 118) fc: 0.4 MHz; (1) Sonication induced
Somatosensory MI: 0.3, 0.55, 0.8; reduction in SSEP magnitude
cortex PRF: 0.01 kHz; (2) Sonication induced
DC: 1%; reduction in SSEP magnitude
SD: 10 ms for 60 min with a 0.55 MI
Kim et al. (2015) Rats (n = 24) fc: 0.35 MHz; (1) Decrease in VEP magnitude
Visual area ISPPA: 1, 3, and 5 W/cm2; at ISPPA of 3 W/cm2 & 5% DC;
ISPTA: 0.03–0.25 W/cm2; (2) Lower DC and intensity
PRF: 0.1 kHz; combinations did not produce
DC: 1, 5, 8.3%; VEP suppression effects
SE: 150s
Legon et al. (2014) Human (n = 10) fc: 0.5 MHz; (1) Sonication induced
Somatosenory ISPPA: 5.9 W/cm2; modulation of short-latency
cortex ISPTA: 2.124 W/cm2; and late-onset SEP responses
PRF: 1 kHz;
DC: 36%;
SD: 500 ms
Legon et al. (2018b) Human (n = 50) fc: 0.5 MHz; (1) Sonication induced
Motor cortex ISPPA: 17.2 W/cm2; l reduction of MEP and
ISPTA: 6.192 W/cm2; intracortical facilitation;
PRF: 1 kHz; (2) Sonication did not induce
DC: 36%; significant changes to short-
SD: 500 ms interval intracortical inhibition
Legon et al. (2018a) Human (n = 40) fc: 0.5 MHz; (1) In SEP, sonication induced
Thalamus ISPPA: 7.02 W/cm2; reduction of P14 component;
ISPTA: 2.53 W/cm2; (2) Sonication induced
PRF: 1 kHz; attenuation in alpha, beta, and
DC: 36%; gamma power bands
SD: 500 ms
Daniels et al. (2018) Rats (n = 22); fc: 0.23 MHz; (1) In AEP, sonication induced
Pigs (n = 5) ISPPA: 2.3 and 4.6 W/cm2; reduction in all animals;
Inferior ISPTA: 0.07 and 0.14 W/cm2; (2) Suppression was weaker in
colliculus PRF: 1 kHz; rats at the lower intensity
Auditory cortex DC: 3%;
SD: 100 ms
Yoon et al. (2019) Sheep (n = 10) fc: 0.25 MHz; (1) Reduction in SEP
Motor cortex ISPPA: 5.4 and 11.6 W/cm2; magnitude of 18–35%
Thalamus ISPTA: 0.16, 0.35, 0.58 W/cm2; using an ISPPA of 5.4 W/cm2,
PRF: 0.03, 0.05, 0.06, 0.1 kHz; and a 3 or 5% DC and a PRF
DC: 3 and 5 %; of 0.06 or 0.1 kHz;
SD: 200 ms (2) SEP reduction lasted approximately 5 min
Yu et al. (2021) Rats (n = 9) fc: 0.5 MHz; (1) Inhibitory neurons have
Somatosenory ISPPA: 50 mW/cm2; high spike rates across all
cortex ISPTA: 3, 15, 30, 45 mW/cm2; PRFs and DCs
PRF: 0.03, 0.3, 1.5, 3, 4.5 kHz;
DC: 0.6, 6, 30, 60, 90 %;
SD: 67 ms
Darrow et al. (2019) Rats (n = 1) fc: 3.2 MHz; (1) Sonication induced SSEP
Thalamus ISPTA: 0.01–88 W/cm2; suppression increases with
PRF: 0.5 kHz; intensity, but unrelated to DC;
DC: 5–70% (2) Thermal changes of up 2°C during sonication
induced suppression of SSEP
Fomenko et al. (2020) Human (n = 18) fc: 0.5 MHz; (1) Sonication induced MEP
Motor cortex ISPPA: 2.32 W/cm2; suppression using DC of 10%
ISPTA: 0.23, 0.69, 1.16 W/cm2; with a SD of 0.4 and 0.5 s only
PRF: 0.2, 0.5, 1 kHz;
DC: 10, 30, 50%
SD: 0.1, 0.2, 0.3, 0.4, 0.5 s
Cain et al. (2021) Human (n = 16) fc: 0.65 MHz; (1) During sonication, the
Left Globus ISPPA: 14.4 W/cm2; left globus pallidus had reduced
Pallidus ISPTA: 0.72 W/cm2; BOLD using 0.1 kHz PRF;
PRF: 0.1 and 0.01 kHz; (2) Relative perfusion in left
DC: 5%; globus pallidus was decreased
SE: 30 s per sonication post-sonication uisng 0.1 kHz
(10 total sonications) PRF
Yang et al. (2021) Macaque (n = 2) fc: 0.25 MHz; (1) Sonication induced reduced
Somatosensory ISPPA: 6 W/cm2; BOLD activations of primary
cortex ISPTA: 0.0271 W/cm2; and secondary somatosensory,
PRF: 2 kHz; posterior insular, and
DC: 50%; midcingulate cortices during peripheral tactile
stimulation