PMID- 31058895 OWN - NLM STAT- MEDLINE DCOM- 20200324 LR - 20200419 IS - 1940-087X (Electronic) IS - 1940-087X (Linking) IP - 146 DP - 2019 Apr 19 TI - The Power of Interstimulus Interval for the Assessment of Temporal Processing in Rodents. LID - 10.3791/58659 [doi] AB - Temporal processing deficits have been implicated as a potential elemental dimension of higher-level cognitive processes, commonly observed in neurocognitive disorders. Despite the popularization of prepulse inhibition (PPI) in recent years, many current protocols promote using a percent of control measure, thereby precluding the assessment of temporal processing. The present study used cross-modal PPI and gap prepulse inhibition (gap-PPI) to demonstrate the benefits of employing a range of interstimulus intervals (ISIs) to delineate effects of sensory modality, psychostimulant exposure, and age. Assessment of sensory modality, psychostimulant exposure, and age reveals the utility of an approach varying the interstimulus interval (ISI) to establish the shape of the ISI function, including increases (sharper curve inflections) or decreases (flattening of the response amplitude curve) in startle amplitude. Additionally, shifts in peak response inhibition, suggestive of a differential sensitivity to the manipulation of ISI, are often revealed. Thus, the systematic manipulation of ISI affords a critical opportunity to evaluate temporal processing, which may reveal the underlying neural mechanisms involved in neurocognitive disorders. FAU - McLaurin, Kristen A AU - McLaurin KA AD - Program in Behavioral Neuroscience, Department of Psychology, University of South Carolina. FAU - Moran, Landhing M AU - Moran LM AD - Program in Behavioral Neuroscience, Department of Psychology, University of South Carolina. FAU - Li, Hailong AU - Li H AD - Program in Behavioral Neuroscience, Department of Psychology, University of South Carolina. FAU - Booze, Rosemarie M AU - Booze RM AD - Program in Behavioral Neuroscience, Department of Psychology, University of South Carolina. FAU - Mactutus, Charles F AU - Mactutus CF AD - Program in Behavioral Neuroscience, Department of Psychology, University of South Carolina; mactutus@mailbox.sc.edu. LA - eng GR - R01 DA013137/DA/NIDA NIH HHS/United States GR - R01 HD043680/HD/NICHD NIH HHS/United States GR - R01 MH106392/MH/NIMH NIH HHS/United States GR - R01 NS100624/NS/NINDS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Video-Audio Media DEP - 20190419 PL - United States TA - J Vis Exp JT - Journal of visualized experiments : JoVE JID - 101313252 SB - IM MH - *Acoustic Stimulation/methods MH - Age Factors MH - Animals MH - Female MH - Male MH - Mental Processes MH - *Prepulse Inhibition MH - Rats PMC - PMC6702946 MID - NIHMS1030218 COIS- Disclosures None of the authors have conflicts of interest to declare. EDAT- 2019/05/07 06:00 MHDA- 2020/03/25 06:00 PMCR- 2020/04/19 CRDT- 2019/05/07 06:00 PHST- 2019/05/07 06:00 [entrez] PHST- 2019/05/07 06:00 [pubmed] PHST- 2020/03/25 06:00 [medline] PHST- 2020/04/19 00:00 [pmc-release] AID - 10.3791/58659 [doi] PST - epublish SO - J Vis Exp. 2019 Apr 19;(146):10.3791/58659. doi: 10.3791/58659.