Publications by authors named "Jaspa D Favero"
Article Synopsis
- Prepulse inhibition of perceived stimulus intensity (PPIPSI) occurs when a weak stimulus reduces the perceived intensity of a stronger stimulus that follows it, and this effect is influenced by attention and the timing between stimuli (SOA).
- The study tested how temporal predictability affects PPIPSI by using two different SOAs (90 ms and 150 ms) and varying levels of predictability in an experiment where participants compared stimulus intensities.
- Results showed that high temporal predictability led to enhanced PPIPSI regardless of SOA, suggesting that predictability helps focus attention on the pulse, and that changes in brain activity correspond to the perception of intensity influenced by the prepulse.
A weak stimulus presented immediately before a more intense one reduces both the N1-P2 cortical response and the perceived intensity of the intense stimulus. The former effect is referred to as cortical prepulse inhibition (PPI), the latter as prepulse inhibition of perceived stimulus intensity (PPIPSI). Both phenomena are used to study sensory gating in clinical and non-clinical populations, however little is known about their relationship.
View Article and Find Full Text PDFThe effect of prepulse amplitude and timing on the perception of an electrotactile pulse.
Atten Percept Psychophys
April 2024
The perceived intensity of an intense stimulus as well as the startle reflex it elicits can both be reduced when preceded by a weak stimulus (prepulse). Both phenomena are used to characterise the processes of sensory gating in clinical and non-clinical populations. The latter phenomenon, startle prepulse inhibition (PPI), is conceptualised as a measure of pre-attentive sensorimotor gating due to its observation at short latencies.
View Article and Find Full Text PDF