Sanjay G Manohar
Biographic Data
| ID | 1852897 |
|---|---|
| NAME | Sanjay G Manohar |
| GIVEN NAMES | Sanjay G |
| FAMILY NAME | Manohar |
| SIGNATURE | MANOHAR S G |
| AFFILIATIONS | University of Oxford |
| ORCID | 0000-0003-0735-4349 |
| VERIFIED | Yes |
| TOTAL WORKS | 7 |
| TOTAL CITATIONS | 2 |
| AUTHOR COUNT | 7 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2019 |
| LATEST PUBLICATION YEAR | 2024 |
| H-INDEX | 1 |
The role of the human hippocampus in decision-making under uncertainty
The role of the hippocampus in decision-making is beginning to be more understood. Because of its prospective and inferential functions, we hypothesized that it might be required specifically when decisions involve the evaluation of uncertain values. A group of individuals with autoimmune limbic encephalitis-a condition known to focally affect the hippocampus-were tested on how they evaluate reward against uncertainty compared to reward against a…
Human ventromedial prefrontal cortex is necessary for prosocial motivation
Ventromedial prefrontal cortex (vmPFC) is vital for decision-making. Functional neuroimaging links vmPFC to processing rewards and effort, while parallel work suggests vmPFC involvement in prosocial behaviour. However, the necessity of vmPFC for these functions is unknown. Patients with rare focal vmPFC lesions (n = 25), patients with lesions elsewhere (n = 15) and healthy controls (n = 40) chose between rest and exerting effort to earn rewards f…
Goal commitment is supported by vmPFC through selective attention
When striking a balance between commitment to a goal and flexibility in the face of better options, people often demonstrate strong goal perseveration. Here, using functional MRI (n = 30) and lesion patient (n = 26) studies, we argue that the ventromedial prefrontal cortex (vmPFC) drives goal commitment linked to changes in goal-directed selective attention. Participants performed an incremental goal pursuit task involving sequential decisions be…
Motivation improves working memory by two processes: Prioritisation and retrieval thresholds
Motivation can improve performance when the potential rewards outweigh the cost of effort expended. In working memory (WM), people can prioritise rewarded items at the expense of unrewarded items, suggesting a fixed memory capacity. But can capacity itself change with motivation? Across four experiments (N = 30-34) we demonstrate motivational improvements in WM even when all items were rewarded. However, this was not due to better memory precisio…
Impact of processing demands at encoding, maintenance and retrieval in visual working memory
There has been surprisingly little examination of how recall performance is affected by processing demands induced by retrieval cues, how manipulations at encoding interact with processing demands during maintenance or due to the retrieval cue, and how these are affected with aging. Here, we investigate these relationships by examining the fidelity of working memory recall across two delayed reproduction tasks with a continuous measure of report …
The computational cost of active information sampling before decision-making under uncertainty
Recall cues interfere with retrieval from visuospatial working memory
Visuospatial working memory allows us to hold multiple visual objects over short delays. It is typically tested by presenting an array of objects, then after a delay showing a 'probe' indicating which memory item to recall or reproduce by adjusting a target feature. However, recent studies demonstrate that information at the time of probe can disrupt recall. Here, in three experiments we test whether traditional memory probes, which contain featu…
The computational cost of active information sampling before decision-making under uncertainty
Recall cues interfere with retrieval from visuospatial working memory
Visuospatial working memory allows us to hold multiple visual objects over short delays. It is typically tested by presenting an array of objects, then after a delay showing a 'probe' indicating which memory item to recall or reproduce by adjusting a target feature. However, recent studies demonstrate that information at the time of probe can disrupt recall. Here, in three experiments we test whether traditional memory probes, which contain featu…
Recall cues interfere with retrieval from visuospatial working memory
Visuospatial working memory allows us to hold multiple visual objects over short delays. It is typically tested by presenting an array of objects, then after a delay showing a 'probe' indicating which memory item to recall or reproduce by adjusting a target feature. However, recent studies demonstrate that information at the time of probe can disrupt recall. Here, in three experiments we test whether traditional memory probes, which contain featu…
Impact of processing demands at encoding, maintenance and retrieval in visual working memory
There has been surprisingly little examination of how recall performance is affected by processing demands induced by retrieval cues, how manipulations at encoding interact with processing demands during maintenance or due to the retrieval cue, and how these are affected with aging. Here, we investigate these relationships by examining the fidelity of working memory recall across two delayed reproduction tasks with a continuous measure of report …
The computational cost of active information sampling before decision-making under uncertainty
Motivation improves working memory by two processes: Prioritisation and retrieval thresholds
Motivation can improve performance when the potential rewards outweigh the cost of effort expended. In working memory (WM), people can prioritise rewarded items at the expense of unrewarded items, suggesting a fixed memory capacity. But can capacity itself change with motivation? Across four experiments (N = 30-34) we demonstrate motivational improvements in WM even when all items were rewarded. However, this was not due to better memory precisio…
The role of the human hippocampus in decision-making under uncertainty
The role of the hippocampus in decision-making is beginning to be more understood. Because of its prospective and inferential functions, we hypothesized that it might be required specifically when decisions involve the evaluation of uncertain values. A group of individuals with autoimmune limbic encephalitis-a condition known to focally affect the hippocampus-were tested on how they evaluate reward against uncertainty compared to reward against a…
Human ventromedial prefrontal cortex is necessary for prosocial motivation
Ventromedial prefrontal cortex (vmPFC) is vital for decision-making. Functional neuroimaging links vmPFC to processing rewards and effort, while parallel work suggests vmPFC involvement in prosocial behaviour. However, the necessity of vmPFC for these functions is unknown. Patients with rare focal vmPFC lesions (n = 25), patients with lesions elsewhere (n = 15) and healthy controls (n = 40) chose between rest and exerting effort to earn rewards f…
Goal commitment is supported by vmPFC through selective attention
When striking a balance between commitment to a goal and flexibility in the face of better options, people often demonstrate strong goal perseveration. Here, using functional MRI (n = 30) and lesion patient (n = 26) studies, we argue that the ventromedial prefrontal cortex (vmPFC) drives goal commitment linked to changes in goal-directed selective attention. Participants performed an incremental goal pursuit task involving sequential decisions be…
Cognition (5 works) · Cognitive psychology (5 works) · Neural and Behavioral Psychology Studies (5 works) · Neuroscience (5 works) · Psychology (5 works) · Computer Science (3 works) · Recall (3 works) · Working memory (3 works) · Decision-Making and Behavioral Economics (2 works) · Encoding (memory) (2 works)