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Optimization of the 5-choice continuous performance test to reveal a parietal-anterior cingulate-claustrum circuit underlying cognitive control and attention

Award Number: RF1MH134175
ORGANIZATION: NATIONAL INSTITUTE OF MENTAL HEALTH
OPDIV: NIH
AWARD CLASS: DISCRETIONARY
AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)
PERIOD OF PERFORMANCE START DATE: 07/01/2023
PERIOD OF PERFORMANCE END DATE: 04/30/2028

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Optimization of the 5-choice continuous performance test to reveal a parietal-anterior cingulate-claustrum circuit underlying cognitive control and attention - Delineating a parietal-anterior cingulate-claustrum circuit underlying cognitive control and attention Treatments are urgently needed for cognitive dysfunction in psychiatric patients. Given the link between such dysfunction and outcome in patients, large numbers of clinical trials were conducted with companies attempting to be ‘first-to-market’. In the rush however, preclinical studies used had limited validity to the cognitive domains reportedly targeted. Thus, circuit-engagement of the cognitive domain tested was rarely if-at-all verified and all clinical trials to-date have failed. New paradigms have emerged with reported relevance to domains affected in psychiatry, but little opportunity to validate circuits underlying these behaviors, let-alone drugs that modulate such circuits and behavior, have arisen. This application will utilize a circuit-targeted approach to confirm the utility of the 5-choice continuous performance test (5C-CPT) to measure cognitive control and attention across multiple psychiatric disorders. Specific Aim 1 will optimize the touchscreen 5C-CPT for parametric manipulation. The 5C-CPT exists for mice, rats, and humans, with EEG & fMRI versions. The task has always been standard however, primarily in 5-hole operant chambers, but a touchscreen version with parametric manipulations within the task would improve translatability to human testing and enable task performance-based consistency. Backward masking of stimuli have been used in cognitive control tasks previously, but only recently used in human 5C-CPT studies. Here, we will demonstrate that such masked trials enable parametric assessment of 5C-CPT performance in mice. Specific Aim 2 will determine the pharmacological sensitivity of the touchscreen 5C-CPT. After developing the task, it is important to confirm that it is sensitive to manipulations, including those available for use in humans for pharmacological predictive validation. We demonstrated that modafinil improves healthy human participant performance of the standard 5C-CPT, while scopolamine impairs mouse performance. Here, we will confirm that modafinil and scopolamine similarly affect this masked touchscreen 5C-CPT, while predicting that a dopamine D4 receptor agonist would improve cognitive control. We will confirm that modafinil rescues scopolamine-induced deficits, avoiding receptor tautological complications. Specific Aim 3 will confirm the role of the anterior cingulate cortex (ACC)claustrum and claustrumparietal cortex (PC) circuit underlying this masked touchscreen 5C-CPT performance. Consistent with human CPTs, we confirmed the necessity of the PC for mouse 5-choice (5C-)CPT performance. We hypothesize that a ACC to claustrum projection is important during more cognitively demanding trials (from parametric manipulations), while a claustrum to PC projection occurs is important for selecting whether to respond or not during trials. Using fiber photometry and optogenetic techniques, we will confirm both the activation and necessity of this circuit respectively, including changes in activity as a direct result of pharmacological manipulation. Thus, circuitry underlying cognitive control will be identified, as will pharmacological treatments affecting this circuit that are readily testable in healthy human participants.


Issue Date FY	Funding FY	Legal Entity Name	Legal Entity Address	Legal Entity City	Legal Entity State	Legal Entity Zip Code	Legal Entity COUNTY	Legal Entity COUNTRY	Assistance Listing	Award Code	Budget Year	Action Date	Action Type	Action Amount

Issue Date FY: 2026 ( Subtotal = $790,000 )
2026	2026	UNIVERSITY OF CALIFORNIA, SAN DIEGO	9500 GILMAN DR	LA JOLLA	CA	92093	SAN DIEGO	USA	Mental Health Research Grants	000	4	4/14/2026	EXTENSION WITH OR WITHOUT FUNDS	$790,000
														Subtotal = $790,000

Grand Total All Awards = $790,000

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Optimization of the 5-choice continuous performance test to reveal a parietal-anterior cingulate-claustrum circuit underlying cognitive control and attention

Award Number: RF1MH134175

ORGANIZATION: NATIONAL INSTITUTE OF MENTAL HEALTH

OPDIV: NIH

AWARD CLASS: DISCRETIONARY

AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)

PERIOD OF PERFORMANCE START DATE: 07/01/2023

PERIOD OF PERFORMANCE END DATE: 04/30/2028

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