Phantabulation: A case of visual imagery interference on visual perception

Cocchini, Gianna; Lello, Owen D.; McIntosh, Robert D.; Sala, Sergio Della

doi:10.1080/13554794.2013.826689

Cited by 3 publications

(4 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Temporal monitoring or reality filtering of memories was explored through a continuous recognition test (CRT). Specifically, a version from Schnider and Ptak’s (1999) test, adapted by Cocchini et al (2014), was used in this study. This test measures the ability to distinguish between information obtained at different moments in time, specifically which information is relevant to the “now.” Four runs were displayed to the participant with different intervals between the runs varying from 0 to 30 min (see Figure 1).…”

Section: Methodsmentioning

confidence: 99%

“…Source of memory task. An adapted and modified version of the Henkel, Johnson, and De Leonardis (1998) source monitoring task was used to measure the ability to distinguish between internally and externally generated memories (Cocchini et al, 2014). In the encoding phase (Figure 2A), patients are presented with 30 object words of which half were accompanied by a Snodgrass picture of the object (Snodgrass & Vanderwart, 1980).…”

Section: Monitoring Measuresmentioning

confidence: 99%

“…This monitoring process has been shown to rely on the orbitofrontal cortex (see Schnider, 2013 for a revision). Failure in temporal monitoring or reality filtering, demonstrated repeatedly in patients with confabulatory phenomena and disorientation, has been proposed as the mechanism by which these patients are unable to determine what information is relevant to the present moment resulting in a profound confusion of what is currently relevant (Cocchini, Lello, McIntosh, & Della Sala, 2014; Dalla Barba & La Corte, 2015; Gilboa et al, 2006; Nahum et al, 2012; Schnider, 2008, 2013; Schnider, Ptak, von Däniken, & Remonda, 2000; Schnider et al, 1996). Within the context of self-awareness of memory performance, the ability to know if a memory relates to the past or the present would appear key for patients to learn that their memory is not what it used to be.…”

mentioning

confidence: 99%

“…Source monitoring or reality monitoring on the other hand, refers to a source attribution process by which memories that stem from an internal source can be distinguished from an external source (i.e., imagined vs. seen; Johnson, 1991; Johnson & Raye, 1981, 2000). Failures in this monitoring ability have been associated with memory and perceptual disturbances in patients with mental disorders and acquired brain injury (Brébion et al, 2000; Cocchini et al, 2014; Johnson, 1991; Radaelli, Benedetti, Cavallaro, Colombo, & Smeraldi, 2013; Turner & Coltheart, 2010). Further, within anosognosia for motor deficits, researchers such as Venneri and Shanks (2004) hypothesized that deficits in source or reality monitoring can underlie anosognosic patients’ inability to assess the veracity of their beliefs.…”

mentioning

confidence: 99%

See 3 more Smart Citations

Mnemonic monitoring in anosognosia for memory loss.

Chapman¹,

Cosentino²,

Igwe³

et al. 2020

Neuropsychology

Self Cite

View full text Add to dashboard Cite

Objective: Anosognosia, or unawareness, for memory loss has been proposed to underlie cognitive functions such as memory and executive function. However, there is an inconsistent association between these constructs. Recent studies have shown that compromise ongoing self-monitoring of one's memory associates with anosognosia for memory loss. Yet to date it is unclear which memory monitoring mechanisms are impaired in these patients. In this study, we examined the extent to which temporal monitoring or orbitofrontal reality filtering (e.g., ability to monitor the temporal relevance of a memory) and source monitoring (e.g., the ability to distinguish which memories stem from internal as opposed to external sources) are associated with awareness of memory deficits. Methods: A total of 35 patients (M=69 years; M=14 years of education) with memory difficulties following a stroke were recruited from outpatient clinics. Patients were assessed with measures of self-awareness of memory difficulties, cognitive abilities and two experimental paradigms assessing source and temporal monitoring. Results and conclusion: Results showed that patients unaware of their memory difficulties were more likely to externalize the source of their memories. Specifically, those unaware of their deficits were more likely to assign an external source to memories that were internally produced (e.g., imagined). No differences were observed in relation to temporal monitoring between patients aware and unaware of their deficits. This study informs current theoretical models of self-awareness of memory loss. Future studies should attempt to replicate these findings and explore different memory monitoring mechanisms in relation to anosognosia for memory loss.

show abstract

Section: Methodsmentioning

confidence: 99%