Imagine Yourself Dancing Waltz: The Effect of Imagination on Memory in Alzheimer's Disease.

Background: Self-imagination refers to a mnemonic strategy of imagining oneself at a scene related to a cue.

Objective: We tested the effect of self-imagination on memory recall in Alzheimer's disease (AD) Methods: Individuals with AD and healthy controls were invited to perform two conditions. In the control (i.

The recombined memory: associative inference in Alzheimer's disease.

Background: Associative inference refers to an adaptive ability that allows flexible recombination of information acquired during previous experiences to make new connections that they have not directly experienced. This cognitive ability has been widely associated with the hippocampus.

Aims: We investigated associative inference in patients with Alzheimer's disease and control participants.

"Remember to take your medication": Prospective memory in Korsakoff's syndrome.

Background: While event-based prospective memory refers to enacting intending action in response to a specific event or cue ("e.g., When I tell you there are 10 minutes left, please give me this stopwatch"), time-based prospective memory refers to enacting intending action in relation to a specific time ("In 10 minutes time, please ask me for a pencil").

False Memories in Individuals With Stabilized Schizophrenia.

This study aimed to examine the false memories in individuals with stabilized schizophrenia. Using the Deese, Roediger, and McDermott (DRM) task, schizophrenia patients and matched healthy controls had to recall words from each DRM list. Following the presentation of the DRM lists, the participants performed a recognition task.

The fabricated past: intentionally fabricated autobiographical memories in Alzheimer's disease.

Objective: We investigated intentionally fabricated autobiographical memories in Alzheimer's Disease (AD).

Method: We invited AD patients and control participants to construct real events as well as fabricated events describing fictitious personal events that occurred in the past.

Results: Results demonstrated slower retrieval time for intentionally fabricated memories than for real ones in both AD patients and control participants.

Repeated recall on source misattribution in Alzheimer's disease.

We assessed the effect of repeated recall on item memory and source monitoring in Alzheimer's disease (AD). AD patients and controls were instructed to either look at or imagine items. They then had to either retrieve the items without indicating their source in three consecutive free recall tests, or to remember the source of the retrieved items in three consecutive source tests.

The eyes of the past: larger pupil size for autobiographical memories retrieved from field perspective.

Background: Visual perspective during memory retrieval has mainly been evaluated with methodologies based on introspection and subjective reports. The current study investigates whether visual perspective can be evaluated with a physiological measurement: pupil dilation.

Methods: While their pupil diameter was measured with an eye-tracker, forty-five participants retrieved one memory from a field perspective (i.

Effects of visual imagery on false memories in DRM and misinformation paradigms.

This study examined the possibility that moderators of false memories in the Deese-Roediger-McDermott (DRM) paradigm affect the occurrence of false memories in the misinformation paradigm. More precisely, the purpose was to determine to what extent an imaging instruction modulates false memories in the DRM and misinformation paradigms. A sample of young adults was assigned to the DRM or the misinformation tasks, either in control conditions or in conditions including an imaging instruction.

Stochastic nonlinear model for somatic cell population dynamics during ovarian follicle activation.

In mammals, female germ cells are sheltered within somatic structures called ovarian follicles, which remain in a quiescent state until they get activated, all along reproductive life. We investigate the sequence of somatic cell events occurring just after follicle activation, starting by the awakening of precursor somatic cells, and their transformation into proliferative cells. We introduce a nonlinear stochastic model accounting for the joint dynamics of the two cell types, and allowing us to investigate the potential impact of a feedback from proliferative cells onto precursor cells.

The thin line between reality and imagination: The imagination inflation effect in Korsakoff's syndrome.

Objective: The imagination inflation effect, which is a form of memory distortion, occurs when imagining an event that never happened may increase the tendency to falsely remember that it really occurred. We investigated this effect in Korsakoff's syndrome.

Method: Our procedures consisted of 2 sessions and a recognition test.

The image of memory: relationship between autobiographical memory and mental imagery in Korsakoff syndrome.

We evaluated the relationship between autobiographical memory and mental imagery in Korsakoff syndrome (KS). We invited patients with KS and control participants to retrieve personal events and to perform measures of visual imagery (Taller/Wilder task), and spatial imagery (Clock Angles task). On the Taller/Wilder task, participants had to generate a mental image of an object presented as a word and determine whether the object was taller than it was wide.

Analysis and numerical simulation of an inverse problem for a structured cell population dynamics model.

In this work, we study a multiscale inverse problem associated with a multi-type model for age structured cell populations. In the single type case, the model is a McKendrick-VonFoerster like equation with a mitosis-dependent death rate and potential migration at birth. In the multi-type case, the migration term results in an unidirectional motion from one type to the next, so that the boundary condition at age 0 contains an additional extrinsic contribution from the previous type.

Visual imagery: The past and future as seen by patients with Alzheimer's disease.

We investigated visual imagery for past and future thinking in Alzheimer's Disease (AD). We invited AD patients and controls to retrieve past events and to imagine future events. Participants also provided a "Field" response if they see the event through their own eyes, or an "Observer" response if they see themselves in the scene as a spectator would.

The effects of emotional content on source monitoring in fibromyalgia patients.

Source confusion refers to a person's failure to distinguish whether an event has been actually seen or simply imagined. Nevertheless, prior research has demonstrated a reduction of source confusion for negative arousing information. According to the emotional-congruence effect, this emotional benefit is likely observed in patients suffering from chronic pain.

Effect of Expertise on Boundary Extension in Approach Sequences.

In a constantly changing environment, one of the conditions for adaptation is based on the visual system's ability to realize predictions. In this context, a question that arises is the evolution of the processes allowing anticipation with regard to the acquisition of knowledge relative to specific situations. We sought to study this question by focusing on boundary extension, the tendency to overestimate the scope of a previously perceived scene.

[French norms of imagery for pictures, for concrete and abstract words].

This paper deals with French norms for mental image versus picture agreement for 138 pictures and the imagery value for 138 concrete words and 69 abstract words. The pictures were selected from Snodgrass et Vanderwart's norms (1980). The concrete words correspond to the dominant naming response to the pictorial stimuli.